TDH Rail, March 2019, Issue 70

ISSUE 70 MARCH 2019

RA IL SO LU SH O M TIO W AL N PR AY S A EV SI SI IE A A 2 W 01 IS 9 SU E

AROA – DIGITAL TWINS TRAIN DETECTION RAIL SOLUTIONS ASIA 2019 The Official Magazine of the Asian Railway Operators Association and Rail Solutions Asia 2019

Rail Solutions Asia KUALA LUMPUR APRIL 10 – 12 2019

Rail Solutions Asia KUALA LUMPUR APRIL 10 – 12 2019

Asia’s Premier Railway Event for 2019 The 20th Exhibition and Conference for Railway Professionals in the Asia Pacific region Incorporating the 16th Annual Congress of the Asian Railway Operators Association Kuala Lumpur Convention Centre April 10–12 2019

CO N T E N T S News 04

SMA wins order for Indonesia, Siemens to electrify Singapore extensions, Malaysia pays for delayed HSR project, Bombardier’s rail control starts operation on Delhi Metro

Rail Solutions Asia 2019

09

Full show preview of the exhibition and conference to be held in Kuala Lumpur in April

AROA

14

Details of some of the Senior Managers from the Asian Railway Operators Association who will be attending their Annual Congress as part of Rail Solutions Asia 2019

Urban Rail Trials

16

Optimising expenditure by choosing components with long service lives and low maintenance requirements. By Lukas Prettner, Product Management, voestalpine Schienen GmbH

Digital Twins

19

The multiple benefits derived from having a digital representation of a physical asset. By Meg Davis, Senior Product Marketing Manager, Bentley AssetWise

Rolling Stock

22

How static inverters increased the energy efficiency of rolling stock. By Dirk Wimmer, Managing Director & Patrick Trost, Head of Sales, SMA Railway Technology

Train Detection

25

The use of axle counters to ensure the safe and efficient running of rail systems. By Jan-André Völkel, Sales Manager Product Business, Transportation Systems, Thales Deutschland

magazine, is published by TDH Exhibitions Ltd. TDH Exhibitions Ltd PO Box 139 Cranleigh GU6 7WD, UK Tel. +44 (0)1483 548290 Fax. +44 (0)1483 548302 Email: tdh.norm@gmail.com

NEXT ISSUE

UK Office +44 1483 548 290 Malaysian Office +603 2385 5395 info@tdhrail.com

www.tdhrail.com

Issue 71 will be published in June 2019. Editorial content will include: RSA 2019 Rail Solutions Asia 2019 – A full review of Asia’s premier railway event Rolling Stock Innovations in rolling stock workshop equipment and technology Projects The Whole Life Cycle and Good i-Design & Planning for MRT systems Ops & Using a Project Management Office to Maintenance deliver performance improvements &

capacity enhancements The above is in addition to news, AROA updates and extra features. The features listed may change.

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NEWS Bombardier’s automated rail control starts operation on Delhi Metro Line 7 Bombardier Transportation, along with Delhi Metro Rail Corporation Ltd (DMRC), celebrated the end of 2018 with the opening of the final major section of the new, automated Delhi Metro Line 7. Equipped with Bombardier’s advanced rail control, the latest 9.8-km stretch of line to open runs from Lajpat Nagar to Mayur Vihar and is providing new rail links between the south and east of the city.

S.S Joshi, Director Rolling Stock and Signalling, Delhi Metro commented, “The opening of this last section of our new, fully-automated Line 7 is a major milestone in the expansion of integrated public transportation in Delhi. The line is already easing pressure on the existing network and is improving travel for millions of commuters.”

Rasmi Ranjan Ray, Head of Rail Control Solutions India, Bombardier Transportation added, “It has been a momentous experience to see the start of services on Delhi’s first fully-automated metro line. This latest section to open marks a major milestone for DMRC in its introduction of driverless, high-capacity services”.

All four phases of Line 7, or the Pink Line, which have opened since March this year, are equipped with the BOMBARDIER CITYFLO 650 communications-based train control solution to support safe and reliable automatic train operations. CITYFLO 650 uses modern radio networks and moving block operation to provide centralised train supervision. The complete 58.5-km circular route from Majlis Park to Shiv Vihar Station will run alongside the city’s Ring Road and is the only line to intersect with all of the other six lines in the Delhi Metro system. A final 600-metre section will connect the two sections in service. The line is can support train speeds of up 85 km/hr, with a frequency as low as just over one and half minutes and its line opening will further support Delhi Metro’s vision to move four million passengers daily on the network.

SMA wins order for Indonesia CAF Power & Automation, a subsidiary of the Spanish CAF Group, has ordered 62 SMARTconverter 3 static inverters from German manufacturer SMA Railway Technology GmbH. The SMARTconverter 3, which is a static inverter of performance class 140 kVA + 20 kW, will be used in the Jabodebek project in Indonesia. These reliable static inverters are based on medium-frequency, potential separation technology, which gives them the specific advantages of being both lightweight and small in size. CAF Power & Automation has repeatedly chosen the SMARTconverter 3 for these reasons.

The supplied static inverters will be fitted on the 31 Light Rail Vehicles that rolling stock manufacturer PT INKA will commission for revenue service on the Jabodebek - Jakarta, Bogor, Depok, Bekasi line. PT Industri Kereta Api – INKA, is one of the leading railway companies in Southeastern Asia and this project is one of the strategic moves by the Indonesian Government towards the improvement and modernization of passenger transit in the country.

Siemens to electrify Singapore extensions Siemens Mobility has been awarded its 3rd contract in Singapore in less than a year. The latest contract is for the electrification of the extensions to the Circle Line Stage 6 and the North East Line. The order is worth €70 million and will include the supply of the rail electrification system, for both DC and AC current, along with the overhead power lines on the North East Line.

The overhead lines to be supplied will be the Sicat SR aluminum overhead busbar system (Siemens Catenary System Standard Rigid). Sicat SR differs to conventional overhead line systems, in that it requires a lower installation height and has a low voltage drop. In addition, it has a high current carrying capacity, shortcircuit resistance and reduced contact wire wear.

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Commenting on this contract Michael Peter, CEO of Siemens Mobility said, "The extension of the Circle Line and the North East Line extends the mobility offer for millions of commuters in Singapore. With the electrification of the two lines, we are making an important contribution to decisively improving the availability of public transport in Singapore”.

This latest contract follows 2 awarded to Siemens Mobility in 2018. In March, they were commissioned to supply the signalling equipment for the extension of the Downtown Line 3 and in September they received an order for the delivery of a Rail Enterprise Asset Management System.

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NEWS CRRC & Downer win double-decker train order in Australia CRRC Changchun recently received a second order from Sydney for its double-decker trains. The order includes a total of 17 double-decker trains and post-delivery maintenance in Sydney. CRRC Changchun will design and manufacture the trains and its Australian partner, Downer, will provide maintenance support. The new trains will be designed to incorporate automatic temperature control systems and monitoring systems, as well as facilities for those with disabilities.

The partnership between CRRC and Downer was established via the Waratah Train Project. The NSW Government ordered a total of 626 carriages in December 2006, which at the time made it the largest single rolling stock order in Australia. Working as a sub-contractor on the project, this was the first time that CRRC had been involved in the rolling stock industry in Australia.

In 2015 CRRC and Downer decided to set up a closer cooperation and started a strategic partnership within Australia and New Zealand. This lead to two successes for the companies at the end of 2016, with orders won on the Sydney Growth Train and High Capacity Metro Train projects.

Alstom electrification for Bangalore Metro

Alstom has been awarded a contract by BMRCL to provide power supply and traction electrification for the 33-kilometre extension to Bangalore Metro under Phase II. Worth around €71 million, it is Alstom’s largest third-rail electrification contract in India. Phase II encompasses the extension of Bangalore Metro’s existing North-South and East-West corridors, translating to a substantial increase in the reach of the metro and reduction of road congestion.

The scope of the contract includes engineering, supply, installation, testing and commissioning of 750V DC third-rail traction electrification, the construction of 30 33kV/415V auxiliary substations, 26 33kV/750V DC traction substations and a 33kV cable distribution network along the viaduct. Alstom will work on integrating this new infrastructure with the existing system on the Phase I lines, including the augmentation of the SCADA system. The execution of this project will be completed in five phases, with the commissioning of the first 6.5-kilometre stretch expected by the end of 2019.

“The significance of our relationship with BMRCL, which goes back to 2009, is underlined by the fact that Bangalore hosts one of Alstom’s most significant sites.

Alstom’s footprint in systems and infrastructure is growing rapidly, and this project will give us an opportunity to extend our cutting-edge capabilities and solutions to our customer,” said Alain Spohr, Alstom Managing Director, India & South Asia.

Ajay Seth, Managing Director of BMRCL, added: “The new line, once commissioned, will bring in much needed flexibility in the network, while significantly reducing vehicular traffic in the city. It will enable Bengalureans to traverse the length and breadth of the city hassle-free and also add positively to the environmental needs.”

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Progress Rail Locomotive contract for Bangladesh Railways Progress Rail, a wholly owned subsidiary of Caterpillar Inc., has signed a contract with Bangladesh Railways to supply 40 EMD GT42ACL broad gauge locomotives, equipped with the latest locomotive technology. These will be the first broad gauge locomotives the company has supplied to Bangladesh.

Rated at 3,250 braking horsepower with microprocessor control and AC/AC traction, these locomotives will provide; significant fuel efficiency advantages, lower emissions, the latest safety features, as well as notable haulage capacity and reliability.

“Progress Rail, through our historic EMD brand, delivered our first meter gauge locomotive to Bangladesh Railways in 1953,” stated Progress Rail Chief Executive Officer Billy Ainsworth. “Since then, we have supplied more than 150 meter gauge locomotives both directly and through partners to the region. We are honoured to be chosen again by the railway to assist in the future growth and development of Bangladesh, this time with an important focus on the broad gauge rail network.”

“The 40 broad gauge locomotives will be critical to the growth and improved efficiency of Bangladesh Railways,” Additional Director General, Rolling Stock of Bangladesh Railway Md Shamsuzzaman stated. “Progress Rail has supplied locomotives to Bangladesh Railways for over 60 years and we look forward to working with them on the delivery of these new stateof-the-art locomotives.”

Visit us at Rail Solutions Asia Austrian Pavilion

Powerlines Group - The system supplier for rail electrification Passion for Delivery www.powerlines-group.com

Innovative solutions.

Long term experience.

Rail Connection Housing WHZ / ETCS and Balise Protection System GPSS

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+43 6225 7191 - 0 +43 6225 7191 - 561

Visit us: 10. - 12. 4. 2019 - Kuala Lumpur / Malaysia

mobility@gifas.at www.gifas.at

NEWS Malaysia pays Singapore for delayed HSR project It was announced recently that Malaysia has paid S$15 Million to the Singapore government as payment for the deferment of the KL to Singapore HSR Project. Both countries agreed last September to suspend the project for 2 years and the discussions included the payment of this abortive cost to reimburse Singapore.

This high profile project was one of the first casualties of the sweeping changes announced after the election of the Barisan Nasioanl (BN) party in May 2018. While the future of this and other major infrastructure projects looked particularly bleak in the early stages of the new administration, the language used to describe their likelihood of completion has become more positive over time.

The new HSR line, which will reduce the travel time between the two capitals to just 90 minutes, has been postponed until May 2020, with a completion date rescheduled for the start of 2031.

Combination of Siemens and Alstom prohibited by European Commission One of the railway industry’s most talked about stories during the past year has seen a dramatic development. The European Commission has announced its decision to prohibit the proposed combination of the Siemens and Alstom mobility businesses and as a result of this prohibition, the merger will not proceed.

Siemens and Alstom have expressed their regret that the remedies they offered, including recent improvements, have been considered insufficient by the EU Commission. The remedies were extensive in scope and addressed all the concerns raised by the Commission with respect to signalling, as well as very high-speed trains. In addition, a number of credible and well-established European players expressed strong interest in the remedy package, thereby fully confirming its viability.

Siemens and Alstom are convinced that the transaction would have created substantial value for the global mobility sector, the European railway industry, customers, travellers and commuters, without harming European competition. It would have also allowed the creation of a European player having the ability to cope with the growing competition from non-EU companies.

Commenting on this news, Daniel Desjardins, Senior Vice President, General Counsel & Corporate Secretary, Bombardier Inc, said “We are pleased that the European Commission, backed by the national competition authorities, has prohibited the proposed merger of Siemens and Alstom. This decision is based on the law and facts at hand, after a very thorough 16-month investigation by the Commission. The Commission has been clear that the proposed merger failed to meet the requirements of European Union competition law. It would have severely undermined the health and competitiveness of the whole European rail market, leaving European consumers, both as rail users and taxpayers, to pay the price.

The European rail sector leads the world through strong domestic competition, continuous innovation and investment.”

Siemens has announced that it will take the time to assess all options for the future of Siemens Mobility and choose the best for its customers, its employees and its shareholders.

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Bombardier appoint new Head for Australia & SE Asia Mobility technology leader Bombardier Transportation has announced the appointment of Wendy McMillan as Head of Australia and South East Asia and Managing Director Bombardier Transportation Australia, effective on February 01, 2019. Based in Melbourne, Ms. McMillan will be responsible for the end-to-end mandate of business development and sales through to project execution and services delivery for the new Australia and South East Asia sub-region.

Wendy McMillan brings to Bombardier almost 30 years of executive experience gained in the government, rail, infrastructure and consulting sectors. She joins Bombardier from the Victoria State Government, where she was Chief Executive Officer of the Rolling Stock Development Division, with responsibility for trains and trams, including developing strategic business cases and delivery of capital projects, asset management and industry development. Prior to that she has held various senior roles in business, including for Queensland Rail, Everything Infrastructure Group (EIG), John Holland Group and the Port of Brisbane Corporation.

In addition to her role as Head of Australia and South East Asia, Ms. McMillan is also appointed as Managing Director Bombardier Transportation Australia. Paul Brown, who has held this position on an interim basis since August 2018, will return to his crucial role as Project Director for the Queensland New Generation Rolling Stock project, however, he will continue to play a vital role in shaping the region for the future jointly with Wendy and the rest of the team.

RAIL SOLUTIONS ASIA 2019 Kuala Lumpur Convention Centre Kuala Lumpur, Malaysia 10 – 12 April 2019

Rail Solutions Asia

Asia’s Premier Railway Event th

20 Annual Show

A SPECIAL THANKS TO EVERYONE WHO HAS SUPPORTED RSA OVER THE PAST TWO DECADES.

 •  •  •  From Bangkok in

 

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Rail Solutions Asia KUALA LUMPUR APRIL 10 – 12 2019

THE EVENT Regarded by many as the best railway show in Asia, Rail Solutions Asia combines: • a wide-ranging exhibition • a comprehensive conference programme • t he Annual Congress of the Asian Railway Operators Association and is designed to be

‘A one-stop solution for all your product and information needs’

EXHIBITOR PICTURES AND TESTIMONIALS FROM RAIL SOLUTIONS ASIA: • • • • • •

Great meeting point for all rail people interested in doing business in SE Asia The show had a great turnout, right till the end of Day 3 RSA gives us an opportunity to network with Asean’s key rail personnel, all under one roof For many years Rail Solutions has been the place to meet in Asia Very well managed and effective event for the railway sector in Asia Well organised and interesting show for exhibitors and visitors alike.

Keen interest from Indonesia’s PT Kerata Api on The India Thermit Corporation stand

Engineers from KL Rapid Rail discussing rail milling technology with Linsinger

A TRULY REGIONAL EVENT

ArcelorMittal Bombardier Delkor Rail Personnel Talgo Tiflex

Rodrigo Bulario from Manila LRMC chatting with staff from Gummi Metall Technik

The event covers much more that just the Malaysian market and the inclusion of the Annual Congress of the Asian Railway Operators Association means that participants have the opportunity to meet Senior Managers from up to 12 railway operators from 8 Asian countries.

NATIONAL ASSOCIATION SUPPORT

The exhibition is supported by Advantage Austria, ICEX from Spain, the VDB from Germany and the Railway Industry Association (RIA) from the UK. For more information regarding grants and National Pavilions, please contact the organisers, or the relevant association.

NETWORKING IS THE KEY

Rail Solutions Asia brings together many of the world's top railway suppliers and most of Asia's most influential railway personnel.

With so many people sharing the same interests, all under one roof, we maximise networking and business opportunities through • T he conference and AROA Workshops are held in rooms close to the exhibition hall • C onference delegates and AROA members pass through the exhibition hall several times each day • T he Networking Area in the exhibition hall provides a more relaxed atmosphere for discussions • E xhibition areas dedicated to Rolling Stock, Permanent Way and Signalling, help create a focused environment

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Rail Solutions Asia KUALA LUMPUR APRIL 10 – 12 2019

THE EXHIBITION This major exhibition attracts most of the world’s top railway suppliers covering all aspects of railway activity.

• Total exhibition area of more than 4000m.sq • T he event layout and social functions are designed to maximise networking and business opportunities, with immediate and regular access to the conference delegates and AROA members, as well as general trade visitors.

• Conference coffee breaks and social functions are held in the exhibition hall

CONFIRMED EXHIBITORS UP TO 1st FEB. 2019 (See website for latest list): A. Rawie Advantage Austria Altpro Arconic Asian Rail Academy Bayerische Kabelwerke Bestsonic Engineering Blaschke Buntmetall Calenberg Ingenieure CRRC DB Engineering & Consulting Delkor Emrail EPHY MESS Evraz Rails FLIR Frauscher Sensor Technology GERB Getzner GIFAS ELECTRIC Gmundner Fertigteile Greenwood Engineering Gummi Metall Tecknik HIMA Hubner Malaysia InnoTrans 2020 Kirow Ardelt Knox Kershaw Koskisen Oy Kraiburg Relastec Lankhorst Mouldings Linsinger MARO Rail Melvelle Nencki Pandrol Panrail Powerlines Progress Rail Rail Power Systems Rehau Safetrack Schrey & Veit Schwihag SMA Railway Technology Taicang Zhongbo Tensar Thales The Hong Kong Polytechnic Univ.

The India Thermit Corp Thermit Australia Track Tec Tricon TWA VDB Voestalpine Group Vogel & Plötscher Vossloh Westermo Windhoff Würth

Track Closing Systems Austrian Association / Organization Safety & Signalling Equipment for Infrastructure & Vehicles Permanent Way Products Academy Independent Training Provider of Railway Courses Cable Solutions for Public Transport Infrastructure Permanent Way Products & Services Exhaust Extraction Systems for Railway Depots Maintenance-free Switch Point Rollers Noise & Vibration Reduction Products Rolling Stock Manufacturer Operations & Maintenance, Testing & Training Consulting Track Fastening Systems & Products Track Construction & Engineering Services Temperature Sensors, Speed Sensors, Oil Level Gauges Rails, Fastening Systems & Wheels Intelligent Transportation Systems Axle Counters & Wheel Detection Systems Vibration Isolation Solutions, FST & Design & Engineering Vibration Solutions for Railway Superstructure Rail Infrastructure & Tunnel Safety Equipment Level Crossings High-Precision Digital Profile Measuring Equipment Rubber Products & Vibration Isolation SIL 4 Safety Controllers Gangways & Articulated Systems International Trade Fair for Transport Technology Railway Crane, Track Construction & Maintenance Machinery Track Maintenance Machinery High Quality Plywood for Rail Sound & Vibration Isolation in Rail Traffic Hybrid Plastic Sleepers Rail Milling and Grinding Trains Signalling Products & Services Track Maintenance Equipment Bogie Maintenance Equipment Track Fastening Systems B2B Marketing & Sales for the Railway Market Railway Electrification Asset Protection & Predictive Condition Monitoring System Design, Innovative Railway Electrification Products Conductor rail systems including composite rails Cable Connection Methods in the Railway Industry Noise & Vibration Solutions for Tracks & Wheels Innovative Switch & Track Technology Power Supply Systems Railway Track Fastening Systems & Products Rail & Track Stabilisation Systems & Products Axle Counter Systems & Services Wheel-Rail Interaction Monitoring System Alumino Thermic Welding Equipment Track Welding & Permanent Way Products Integrated Rail Superstructure Products Complete range of Industrial Design Services A Full Range of Track & Track Maintenance Products German Railway Association Rails, Turnouts, Point Machines & Signalling Solutions Track Measurement Systems, Turnout Inspection Devices Rail Fastening Systems, Sleepers, Switch Systems & Services Data Communication Products Infrastructure Vehicles, Workshop Equipment, Shunting Technologies Tools & Construction Materials

Germany Austria Croatia Australia Malaysia Germany Malaysia Germany Austria Germany China Germany/Asia Australia Malaysia Germany CIS Belgium/Asia Austria Germany Austria Austria Austria Denmark Germany/Malaysia Singapore/Germany Malaysia Germany Germany USA Finland Germany The Netherlands Austria Malaysia Australia Switzerland UK/Australia/Asia Austria Austria Australia Germany Germany Sweden/ Malaysia Germany Switzerland Germany China Malaysia Germany Hong Kong India Australia Poland Germany Malaysia Germany Austria Germany Thailand Singapore Germany Malaysia/Germany

CONTACT US NOW TO BOOK YOUR STAND AT THIS IMPORTANT EVENT UK Office Tel: + 44 1483 548290 Malaysian Office Tel: +603 2385 5395 Email: info@tdhrail.com

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Rail Solutions Asia KUALA LUMPUR APRIL 10 – 12 2019

THE CONFERENCE The conference attracts more than 150 delegates, including up to 50 members of the Asian Railway Operators Association. This comprises delegations of up to five Senior Managers, sent by 10 of the region’s leading railway operators to represent the five designated key areas of railway activity; • Projects & Planning

• Permanent Way & Infrastructure

• Rolling Stock

• Signalling & Communications

• Operations & Maintenance

Wednesday April 10th 9.30 PROJECTS & PLANNING SESSION

Conference papers presented by Asian Railway Operators on the subject of Projects and Planning, giving detailed information about upcoming projects on urban and mainline rail systems.

May Tso Acting Engineer Planning Manager MTR Corp Hong Kong The challenges and engineering insights of constructing new railway lines in integration and interface with an operating railway Celeste Lauta Acting Div. Mngr. Corp. Planning PNR Overview of current and planned rail projects in the Philippines

The Philippines

Phan Tien Dung Dep. Dir. Infrastructure Management Dept.

Vietnam Railways Vietnam The application of machinery and equipment for infrastructure maintenance on Vietnam Railways Weni Maulina Head of Engineering Division MRT Jakarta Future challenges for Jakarta MRT in planning, construction and operation

Indonesia

12.00 ROLLING STOCK WORKSHOP Chairperson

TBA, CRRC

Yan Yihua TBA Future developments in rolling stock design and technology

CRRC Dalian

China

Patrick Trost Head of Sales SMA Germany How static inverters increased the energy efficiency of rolling stock on two Asian metro systems Bukhari Mohamed

Head of Project Interface Rapid Rail Maintenance of Rolling Stock on Rapid Rail system in Kuala Lumpur

Session Chairman

AROA Member Open Forum

Malaysia

14.45 PERMANENT WAY WORKSHOP Chairperson

Wolfgang Lienhart, Area Sales Manager, voestalpine Schienen

Lukas Prettner

Product Management Rails for Metro and Light Rail Systems

voestalpine Schienen Austria

Arvid Reschke Assistant to the CEO Kirow Ardelt Germany Developments in the application of construction machinery for switch renewal – from In Situ to Just-In-Time delivery Jean-Francois Chassin Victor Ma Ding

VP – Permanent Way & Engineering Trains SMRT Executive Engineer SMRT Laser Track Trolley – Maintenance Initiative for Safety, Health and Efficiency

Session Chairman

AROA Member Open Forum

Singapore Singapore

AROA Member Open Forum

Up to 10 Asian Railway Operators will send Senior Managers, with relevant expertise, to attend each of the four Specialised Workshops.

They will be contacted ahead of the event and asked to supply a short list of current and relevant topics for discussion. The session chairmen will use these topics to lead an open forum between the operators, suppliers and other delegates.

Main conference

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Specialist workshop

Rail Solutions Asia KUALA LUMPUR APRIL 10 – 12 2019

Thursday April 11th 9.30 PROJECTS & PLANNING SESSION

Conference papers presented by Asian Railway Operators on the subject of Projects and Planning, giving detailed information about upcoming projects on urban and mainline rail systems.

Jayantha Gunathilake

Consulting Engineer Sri Lanka Colombo Suburban Railway Electrification Project

Sri Lanka Railways

Sri Lanka

Chien Ming Lai Technical Manager, Mass Transit Eng. Dept.

Sinotech Taiwan Sherry Wang Operations Engineer, Mass Transit Eng. Dept.

Sinotech Taiwan The Whole Life Cycle and Good i-Design for MRT - A Case Study of Taipei Wanda Zhonghu Shulin Line Phase II Marco Sung

Section Chief Current situation and future plans on Taiwanese railways

BOHSR

Taiwan

12.00 SIGNALLING & COMMUNICATIONS WORKSHOP Chairperson

Arne Kloosterman, Market Director – Rail Infrastructure & Train Networks, Westermo

Jan-André Völkel

Sales Manager Product Business Thales Deutschland Optimal application conditions for train detection systems in a tropical climate

Arne Kloosterman

Market Director - Rail Infrastructure & Train Networks Westermo Singapore Ethernet and wireless communication solutions for rolling stock and trackside applications

TBA

Senior Signalling Engineer TBA Malaysia Signalling - a driver for improved safety and profitability on Malaysia’s rail system

Session Chairman

AROA Member Open Forum

Germany

14.45 OPERATIONS & MAINTENANCE WORKSHOP Chairperson

Stefan Sanders, Principal Consulting Lead, South East Asia, ARUP

Stefan Sanders Principal, Consulting Lead, South East Asia ARUP Malaysia Using a Project Management Office based approach to deliver performance improvements and capacity enhancements to railways Dirk Slodzinski

Director Business Consulting DB Eng & Con The role of digitalisation and data analytics in asset management

Prof. Yiqing Ni

Professor, Department of Civil & Environmental Engineering Hong Kong Poly. Uni. Hong Kong Applying machine learning to sensor data for advanced fault detection in railway systems

Session Chairman

AROA Member Open Forum

SILVER SPONSOR

Germany

MEDIA SPONSOR

DELEGATE TESTIMONIALS FROM PREVIOUS SHOWS • • • • •

Consistently one of the best events in S E Asia over the last 10 years Our gain from this conference was way above what we expected A truly complete one stop shop, for your railway needs I found the conference to be informative and great for networking A great opportunity to get a lot of rail solutions at the same time

Arup HK Poly/Univ.

LRTA Orient S A VR

CONTACT US NOW TO BOOK YOUR DELEGATE PLACE AT THIS IMPORTANT EVENT UK Office Tel: + 44 1483 548290 Malaysian Office Tel: +603 2385 4024 5395 7717 Email: info@tdhrail.com Email: info@tdhrail.com Web: www.tdhrail.com 13

The Asian Railway Operators Association 16th Annual Congress – Kuala Lumpur AROA Members Who will be Attending Rail Solutions Asia 2019 include:

Rapid Rail Malaysia

● Khairani Mohamed ● Ismail Abdullah ● Abdul Hadi Amran ● Mohd Ariffin Idris ● Azmi Mohd Zain ● Muhammad Syafiq Abdullah ● Amizan Ariffin ● Abdul Manan Abdul Rahman ● Ramli Shafie ● Jaafar Md Amin

CEO Rapid Rail COO Kelana Jaya Line COO Ampang - Sri Petaling Line COO Monorail Line COO MRT SBK Line Head of Operation, Kelana Jaya Line Head of Maintenance, Kelana Jaya Line Head of Maintenance, Ampang Line Head of Maintenance, MRT SBK Line Head of Maintenance, Monorail Line

Manila LRMC, The Philippines ● ● Rodrigo Bulario ● Emmanuel D Lucas ● Alexander A. Maglonzo ● Cristorey Janeo ● Angel Rodriguez ● Jessie Centro ● Marlon Anciro ● Pedro Tesiorna ● Ruben Gungon ● Bobby San Jose

Operations Director Operations Support Manager Training Manager Operations Support Manager Acting Asst. Station Manager, Station Ops Div Senior Project Manager, Special Projects Power & Catenary Section Manager Rolling Stock Section Manager Infrastructure Division Maintenance Manager Operations Control Center Manager

PNR, The Philippines

● Celeste Lauta Acting Div. Mngr. Corp. Planning ● Roderick B Medroso Dept. Mngr. Rolling Stock & Maintenance Dept ● Emmanuel L Tolentino Dept. Mngr. Engineering Dept ● Joseline A. Geronimo Dept. Mngr. Operations Dept ● Ricarte R Galope Jr Div. Manager, Train Control Terminal, Ops Div

Manila LRTA, The Philippines

● ● Felix Gerard R Leyson Dept Mngr.A, Line 1 Concession Agr. Mngt. ● Allan A Arquiza Officer in Charge,Corp. Planning & Research ● Maria Corazon S Pascual Div Mngr A Budget & Financial Planning Div ● ● Lorelie L Reyes Div Mngr A Gen Services Div, Proj. Mngr Line 2 ● Joseph E Hagos Officer in Charge, Traffic Control Div

Vietnam Railways, Vietnam

● Pham Nguyen Chien Director, Railway Security & Safety Dept ● Phan Tien Dung Deputy Director, Infrastructure Mngt. Dept ● Nguyen Tuan Minhg Head of Secretariat Div., Administrative Dept ● Truong Van An Director, Da Nang Locomotive Enterprise ● Nguyen Canh Tungn Director, Vinh Railway Signalling & Telecoms.

Ho Chi Minh City MAUR, Vietnam

● Tran Hong Duon Official of Project Management Unit, Line 5 ● Nguyen Minh Hung Offical of Project Management Unit, Line 2 ● Nguyen Ngoc Hieug Official of Div of Planning & Contract Mngt. ● Thai Ha Hoa Official of Div of Technics & Procurement ● Dang Thi Xuan Hai Official of Div of Organization & Training

Sri Lanka Railways, Sri Lanka

● Vijaya Amaratunga Project Director ● Jayantha Gunathilake Consultant Engineer ● Ranjith Peries Signal Engineer

SBS Transit, Singapore

● David Cheong Peng Lam Senior Manager, ISCS & Systems ● Jonathan Yong Hong Lengn Senior Manager, Rolling Stock ● Mohamed Ardi Bin Moh'd Is'hak Assistant Manager, DTL Traffic

SMRT, Singapore

● Jean-Francois Chassin Principal Fellow ● Chen Bonan, Wayne Principal Engineer ● Isman Bin Seymo Engineering Maintenance Manager ● Victor Ma Ding Executive Engineer

MTR, Hong Kong

● Grace Kwong Group Station Manager ● May Tso Acting Engineer Planning Manager ● Edmund Law Fleet Development Manager ● Alex Lo Maintenance Manager-Permanent Way ● Kelvin Mak Maintenance Manager-Signalling & Telecom

CIE, MOTC Taiwan ● Wu-Hsun Chang ● Hung-Kang Sung

General Secretary, Chinese Inst. Eng., CIE Chief of Rolling Stock & Maint. Section, MOTC

MRT, Jakarta

● Weni Maulina Head of Engineering Division ● Oka Jatnika Head of Train Operation Dept ● Panji Arum Head of Track, Civil & Mech Elect Main Dep ● Riska Muslimah Head of Civil Infrastructure Dep, Eng.Div. ● Prabowo Setyo

Head of Rolling Stock Dep, Railway System Div. The coloured bullet points denote the member’s discipline ● Projects & Planning/Multi-Discipline ● Permanent Way ● Rolling Stock ● Signalling & Comms● Operations & Maintenance

Networking with other members and meeting leading railway suppliers is all part of the AROA experience

Philippine PNR & Thailand SRT delegates chatting after the AROA Open Forum Debate

Vietnam Railways, Manila LRMC and Kuala Lumpur MRT Corp

Lee Yam Lin from Singapore SBS in discussion with Dean Whitmore from Pandrol

AROA is a group of Asian urban and mainline railway operators and is designed to: ■ provide a forum for the exchange of ideas and information ■ promote awareness of new technologies ■ highlight, address and respond to the challenges facing rail-bound transportation in Asia.

The AROA Annual Congress is the highlight of the AROA year. Senior Managers from railway operators across Asia converged on Kuala Lumpur for three days of unrivalled opportunity to develop their knowledge and understanding of the railway industry.

The emphasis of the association is very much on the sharing of expertise and experience for the mutual benefit of all members.

With conference papers and specialist workshops, plus many of the world’s top railway suppliers on show, this is an event not to be missed by any railway operator, who wishes to develop their staff’s knowledge and improve their service to the travelling public.

14

Khairani Mohamed Rapid Rail Malaysia

Abdul Hadi Amran Rapid Rail Malaysia

Ismail Abdullah Rapid Rail Malaysia

Mohd Ariffin Idris Rapid Rail Malaysia

Azmi Mohd Zain Rapid Rail Malaysia

Muhammad Syafiq Abdullah Rapid Rail Malaysia

Arnizan Ariffin Rapid Rail Malaysia

Abdul Manan Abdul Rahman Rapid Rail Malaysia

Ramli Shafie Rapid Rail Malaysia

Jaafar Md Amin Rapid Rail Malaysia

Rodrigo Bulario LMRC The Phillipines

Emmanuel D Lucaso LMRC The Phillipines

Angel Rodriguez LMRC The Phillipines

Cristorey Juneo LMRC The Phillipines

Alexander A Maglonzo LMRC The Phillipines

Bobby V. San Jose LMRC The Phillipines

Jessie Centro LMRC The Phillipines

Marlon Anciro LMRC The Phillipines

Peter Tesiorna LMRC The Phillipines

Ruben Gungon LMRC The Phillipines

Celeste Lauta PNR The Phillipines

Roderick B Medroso PNR The Phillipines

Emmanuel L Tolentino PNR The Phillipines

Joseline A Geronimo PNR The Phillipines

Ricarte R Galope Jr PNR The Phillipines

Allan A. Arquiza LRTA The Phillipines

Felix Gerard R Leyson LRTA The Phillipines

Joseph E Hagos LRTA The Phillipines

Lorelie L Reyes LRTA The Phillipines

Maria Corazon S Pascual LRTA The Phillipines

Nguyen Canh Tung VR, Vietnam

Nguyen Tuan Minh VR, Vietnam

Pham Nguyen Chien VR, Vietnam

Phan Tien Dung VR, Vietnam

Truong Van An VR, Vietnam

Dang Thi Xuan Hai MAUR, Vietnam

Nguyen Minh Hung MAUR, Vietnam

Nguyen Ngoc Hieu MAUR, Vietnam

Thai Ha Hoa Tuyet Mai MAUR, Vietnam

Tran Hong Duong MAUR, Vietnam

Ranjith Peries Sri Lanka Railways

David Cheong Peng Lam SBS Transit

Jonathan Yong Hong Lengn SBS Transit

Mohamed Ardi Bin Moh'd Is'hak SBS Transit

Jean-Francois Chassin SMRT, Singapore

Wayne Chen Bonan SMRT, Singapore

Isman Bin Seymo SMRT Singapore

Victor Ma Ding SMRT Singapore

Vijaya Jayantha Amaratunga Gunathilake Sri Lanka Railways Sri Lanka Railways

Wu-Hsun Chang BOHSR/TRA/CIE Taiwan

Marco Sung MOTC Taiwan

Grace Kwong MTR Hong Kong

May Tso MTR Hong Kong

Edmund Law MTR Hong Kong

Alex Lo MTR Hong Kong

Kelvin Mak MTR Hong Kong

AROA comments from Rail Solutions Asia 2018 included: An excellent opportunity to network and explore the possibilities available in the Railway Industry. Benji Tan, Senior Engineer, Permanent Way Maintenance & Engineering, Singapore SMRT Great event, providing an opportunity to stay up to date with railway technology. Athaphon Kawprasert, Divisional Engineer, Permanent Way, State Railway of Thailand This is the place to get your "real" solutions to your rail problems. Francis Lim, Head of DTL Signalling, Singapore SBS Transit The RSA Conference and Exhibition is a great achievement, providing a platform to promote the exchange of information about rail transportation in Asia. Marco Sung, Chief of Section, Taiwan BOHSR Enlightening and informative about the latest trends and technology in the railway industry. Also good for benchmarking of processes and projects for railway operators in Asia. Faith S.Bote, Internal Audit Manager, Manila LRMC

Membership includes access to all aspects of the Annual Congress including air flights and accommodation For full details of Membership Benefits, Annual Fees and an Application Form, please contact: info@tdhrail.com 15

Wiener Linien discovers new potential for rails in Urban Transportation Systems

By Thomas Hammer, Track Engineering, Wiener Linien Lukas Prettner, Product Management, voestalpine Schienen

W

ith a total track length of 237 km of metro tracks and 427 km of tramway tracks, Wiener Linien in Vienna is one of Europe’s largest Urban Transportation Systems, carrying a total of nearly one Billion passengers per year. Especially in Vienna’s Metro, where the shortest train interval is as low as 2 minutes and maintenance hours are only from 00:30 to 04:00, superstructure components need to fulfill the highest requirements regarding availability and lowest needs for maintenance.

Wiener Linien has always had a strong focus on optimizing their Operational Expenditures (OPEX), as well as their Capital Expenditures (CAPEX) by using components offering the longest service lives, combined with the lowest maintenance necessities.

Consequently, the performance of products is closely monitored, over time, in the Wiener Linien track database “Gläserner Fahrweg”, which can be translated as “track of glass”.

The intention behind the IT-tool „Gläserner Fahrweg“ was to extend the existing infrastructure database towards a viable financial planning tool for track and turnout renewal, which is also the basis for the financial contracts with the city of Vienna.

Thus, strategic prognosis models for component degradation, based on long-standing measurement campaigns have been integrated, in order to predict future demands, always aiming to use components with the lowest Life Cycle Costs (LCC).

With the aim of further optimizing total LCC, track availability and the maintenance efforts of Wiener Linien’s metro tracks, the voestalpine 400 UHC® HSH® rail steel was recently field-tested on a 700 m long track section in Vienna’s Underground Line U6.

The Super Premium rail steel 400 UHC® HSH® is standardized in EN13674-1:2017 as R400HT and positive experiences during Metro Operation have already been collected from all over the world - and have also been demonstrated in [1]. The rail steel combines the benefits of voestalpine’s HSH® special heat treatment technology for steel refining, with an innovative material concept further strengthening the microstructure. It was originally developed in the late 1990s to resist the highest loads of heavy haul transportation and further developed to provide a sustainable solution for urban transportation networks.

The testing area in Vienna contained a curve with R = 120 m and a curve with R = 350 m. In the latter, 400 UHC® HSH® was 16

implemented alternatingly with the 350HT HSH® on the high rail and the R260 on the low rail, whereby each section was 45 m in length. The area was closely monitored and a comprehensive inspection program was followed.

Results

The 350 m radius curve, where rails were placed alternatingly, delivered a direct comparison between the aforementioned rail steels. Fig. 1 shows that the side wear of the 400UHC®HSH® (green) rails is reduced by more than 50% on average, compared to 350HT HSH® (yellow) after 2 years in service (approx.. 40 MBGT).

Fig. 1: 45° side wear of the high rail

In order to determine relevant parameters for rail grinding, Head Check depth on the high rail has been measured by Eddy Current technology, allowing a quantitative assessment. Fig. 2 shows that by using 400UHC® HSH® the Head Check Depth was reduced by approx. 50%.

Longitudinal profile measurements of the top of the rail surface, each conducted one meter apart from a weld, demonstrate that while corrugation with a depth of 0.24 mm has already developed on R260, 400UHC® HSH® shows only a very slight appearance of corrugation in the range of 0.03 mm (see Fig. 3.)

Fig. 2: RCF measurement by eddy current

and thus a conservative approach have been considered for the consideration.

Ultimately, the metal removal rates, in combination with natural rail wear on both the High Rail and the Low Rail define the service life of the rails.

Life Cycle Cost Assessment

Fig. 3: Measurement of longitudinal profile of R260 and 400UHC® HSH® (R400HT) 1 m next to the weld

Appraisal of results

Corrugation and RCF defects (Head Checks) represent two key drivers for rail grinding or milling. While corrugation is not only one of the most important sources of railway noise, it is the structure-borne vibrations that arise due to corrugation, which ultimately lead to accelerated degradation of other superstructure components. Head Checks, a periodical crack pattern in the gauge corner area, represent a safety critical degradation mechanism that might lead to a multifractal rail break and thus need to be removed as a maintenance action.

As former investigations have shown that RCF propagation in early stages tends to be nearly linear [2], the RCF measurement results suggest that at a hypothetical metal removal rate for rail grinding/milling of 0.5 mm is reached for 350HT HSH® after approximately 1.5 years, while the use of 400UHC® HSH® would lead to a grinding/milling interval of nearly three years. Therefore, not only the material removal rate can be reduced by using the 400 UIHC® HSH® steel grade, but also the maintenance intervals can be stretched. Railway operators benefit from the possibility to optimize the maintenance program with a high degree of flexibility, due to the robustness of the rail steel material.

As for corrugation, a reduction by a factor of eight was reached after 2 years of service. The reduction of maintenance necessities becomes even more obvious in this case. However, for subsequent study, only Head Checking was taken into account

The Life Cycle Assessment was done by assuming stable annual traffic for the forthcoming years leading to an expected service live of more than 30 years for the 400 UHC® HSH® rails, with the aforementioned benefits in rail maintenance.

By taking into account all costs related to rail implementation, rail grinding, or milling and the rail investment itself, the whole Life Cycle Costs were examined on the lowest equivalent annual costs, showing that the savings are in a range of 40 % as seen in Fig. 4.

The significant reduction of Life Cycle Costs, by using 400UHC® HSH® rail steel, based on the conservative assumption of not taking into account the big advantage in corrugation, leads to a very stable ranking of results. The ranking of the strategies remains stable against major parameter changes e.g. traffic reduction of 50 %, or major increases in interest rates. Ultimately, the results suggest the use the rail steel 400 UHC® HSH® for the application of High and Low Rails in comparable curves.

Due to the savings in maintenance costs for rail grinding, the investment in 400UHC® HSH® amortizes within the first 3 years.

Discovering the full organisatoric and economic potential

Having demonstrated how LCC in a curve were reduced by diminishing wear, along with RCF and corrugation by using 400UHC® HSH®, plus the fact that rail service live is stretched towards more than 30 years, major advantages become obvious: • T he application of 400UHC® HSH® in curves leads to a situation where Total Costs of Ownership of curves are converging to the costs of tangent tracks, where usually standard carbon rails are being used.

• The maintenance regimes in these regions are also approximating the maintenance regimes of less stressed areas, which makes maintenance planning easier, by leading to longer sections with similar maintenance needs.

These positive effects, observed in Vienna, demonstrate how stateof-the-art technology can be used to reduce costs and facilitate maintenance.

[1] L . Prettner: How rail degradation influences the public perception, availability and profitability of Metro Systems, tdh rail magazine 67, 2018.

[2] R . Heyder: Empirical studies of head check propagation and wear development, ZEVrail 137, 2013

Fig. 4: LCC assessment on basis of the measurements from underground line U6

18

The Rise of Digital Twins in Rail

By Meg Davis Senior Product Marketing Manager, Bentley AssetWise

D

igital twins have recently become one of the most talked about topics, because of their promise to leverage innovation to improve design, visually enhance collaboration and increase asset reliability and performance.

However, rail is a very traditional and safety-sensitive industry and with the backdrop of owner-operators and project delivery firms needing to work within tighter budgets, shorter deadlines, and increased legislation, change can often be slow and challenging.

While the risks associated with changing a tried and tested formula weigh heavily on the minds of those responsible, the upside is that the highly complex nature of rail networks and systems allow for the opportunity to innovate and leverage technology, to change the way rail networks do business.

Many owner-operators around the world have recognized the potential for digital twins in their work and have begun to explore the opportunities for applying big data analytics, artificial intelligence (AI), and machine learning (ML) throughout the design, construction, operation and maintenance of rail and transit networks.

What is a Digital Twin?

A digital twin is a digital representation of a physical asset, process, or system, as well as the information that allows us to understand and model its performance. Plainly stated, a digital twin is a highly detailed digital model that is the counterpart (or twin) of a physical asset. That asset might be anything from a ticket machine, or escalator in a station, through track, including the switches and crossings within it, related infrastructure like overbridges, or overhead line structures, right up to and including an entire city.

Connected devices and sensors on the physical asset collect data that might relate to the condition or performance of the asset. This data can be mapped onto the ‘digital twin’, to understand how the physical asset is performing in the real world and, through analysis or simulation, how it might perform in the future, or with a different set of parameters.

future products and systems. The relevance and influence of digital twins, which span the entire asset lifecycle, are significant when applied to rail infrastructure.

During the planning, design, and construction of a new railway, or major upgrade, project digital twins can enable the optimization of design, in line with operational requirements and reduce the risk of delayed, or nonconformant construction through simulation. Project digital twins can also improve logistics and communication within the supply chain, enabling on-time and within budget completion.

Performance digital twins are at their most valuable during operations. Owner-operators gain insight when inputs from Internet of Things (IoT) connected devices, such as drones that deliver continuous surveys to provide real-time tracking of asset changes in real-world conditions, add to the digital representation. This transparency helps owner-operators prioritize and improve maintenance, or upgrades.

Consequently, the most significant value a rail or transit system can achieve is through the successful implementation of digital twin technology. By using twins to plan, design, and build the network and utilizing the digital twin during operations, a rail or transit owner-operator will improve performance and reliability.

With the application of AI and ML, analytics visibility gained from big data can provide insight and immersive digital operations to enhance the effectiveness of operations and maintenance. In this instance, access to performance digital twins

Why are Digital Twins Important?

Digital twin technology has existed in industries like manufacturing for many years, driving lean processes, improving performance and predicting and highlighting components at risk of failure.

Additionally, digital twin technology ensures that the lessons learned contribute to design enhancement and are applied to 19

might enable staff to anticipate and avoid issues, before they arise, or improve reaction times to system failures to reduce downtime.

With the application of drones and robots, plus AIbased computer vision, the automation of inspection tasks, via a living digital twin, will enable experts to conduct inspections remotely, vastly increasing productivity, leveraging the value of specialists and reducing the risk of exposing team members to dangerous environments.

Realizing the Potential of Digital Twins

There must be practical solutions for the synchronization of the physical asset’s changing condition to realize the full potential of digital twins.

The timing and scope of this synchronization is key, because certain assets update in near real-time, which can be critical to their reliability. For others, a weekly, monthly, or even annual update on condition may be sufficient. Therefore, it is important that the organizations and professionals involved have a clear Maha Metro’s connected data environment (CDE) provides real-time access to trusted information strategy when setting the criteria for synchronization, including which assets should be analyzed, when, and by what delivery and/or better performing assets, every day and all parameters. around the world. One organization achieving these objectives is However, merely capturing and representing physical Maharashtra Metro (Maha Metro) in Nagpur, India. conditions, even including IoT inputs, can never be sufficient Maha Metro’s implementation of Bentley’s OpenRail solution enough to understand, analyze, or model intended improvements, uses iModels as its final delivery format, due to its ability to without also comprehending the digital engineering information provide reliable, long-lasting asset models for reference. The used in the project’s or asset’s engineering design and organization is committed to a full lifecycle approach and specification. Digital engineering information is like the “digital has deployed a digital project delivery system with OpenRail’s DNA” for infrastructure assets. Just as doctors can analyze connected data environment (CDE) at its core and encompassing human DNA to anticipate health issues and personalize care for every phase of the asset lifecycle from planning to performance. better health outcomes, project delivery firms can harness digital Maha Metro’s CDE is configured to record all data and engineering information to enable collaboration, improve decision uses asset tags to link components created with Bentley’s open making and deliver better project outcomes. modelling applications, with other software, such as its enterprise For owners, leveraging “digital DNA” is all about creating and resource planning system. Hundreds of thousands of drawings using digital twins to their full advantage—personalizing asset and documents are currently transacted among approximately maintenance and maximizing asset reliability and uptime. It is 400 users within the CDE, providing real-time access to trusted about creating an open, connected data environment (CDE) that information wherever and whenever it is needed. The expansive provides trusted information wherever and whenever it is needed, CDE also provides data mobility to close communication gaps, to help design, build, operate and maintain physical assets. speed up design issue resolution and approvals, which results in Owners will then use digital twins to make better decisions, gain cost savings measured in the millions of U.S. dollars. more efficiency and improve performance.

In the future, the digital DNA that Maha Metro and its supply chain is creating, during design and construction, will allow the Current Networks are the Digital Twins organization to manage current, future and refurbished assets. By ensuring this trusted information remains current and accessible, for Future Projects the organization’s system will enable strategic decision making, Bentley sees its users advancing digital workflows, the use of establish condition-based monitoring and facilitate progress intelligent components and digital context to improve project towards predictive maintenance strategies that are expected to save at least USD 222 million over 25 years of the railway’s operational life.

Conclusion

It is clear that digital twins are gaining momentum, particularly within organizations that presently have IoT initiatives. The emergent nature of digital twins will require an approach with clear business objectives and an agile approach to experiment and learn from experiences. Just as Maha Metro is setting the agenda and direction for the industry of tomorrow, at Bentley we fully expect to see the use and adoption of digital twins become common place within rail owners and their supply chains in only a few short years.

For more information about this article contact: Tel: +65 6692 6570 Or visit: https://www.bentley.com/en/solutions/industries/rail-and-transit Maharashtra Metro Rail Corporation Ltd. (Maha Metro) uses digital workflows to manage rail assets

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How static inverters increased the energy efficiency of rolling stock

Hyundai Rotem train for KVMRT L2, artist’s impression, copyright: Hyundai Rotem

By Dirk Wimmer, Managing Director, SMA Railway Technology Patrick Trost, Head of Sales, SMA Railway Technology

D

espite rail’s overall high energy efficiency, the cost of that also provide galvanic isolation between traction power supply power supply is still a major concern. Many initiatives are and the consumers. This is an important safety feature simplifying underway to reduce energy consumption, such as reducing the electrical onboard system. vehicle mass and improving the energy efficiency of onboard When static inverters were introduced on rolling stock, they systems. Reducing the vehicle’s mass by 10% will result in around were rather simple devices. In most cases a 3-phase inverter 1% less traction energy being required - significantly lowering was combined with an isolation transformer running at the operation costs. This not only applies to the vehicle in general, same frequency as the connected loads (e.g. 50 Hz). But these but also to its different systems, notably the static inverters. transformers were big and heavy, representing around 50 % of Requirements for static inverters are particularly exacting, as the the total weight of such a static inverter. Despite using forced air mass of the static inverters is expected to be reduced, even though cooling, weights of 600 kg for a 150 kVA isolation transformer power ratings typically increase. alone were common. As the weight of onboard systems has a Additionally, the energy efficiency of the onboard systems direct effect on the energy efficiency of the rolling stock, measures becomes more and more important. With today’s comfort were taken to minimize the weight. For example, transformers functions, the auxiliary loads on a train consume a similar were built using aluminum rather than copper, but this had a amount, or even more energy than the traction system. This is negative effect on efficiency. In the end, such conventional static especially true for South East Asia, where due to the climate, the inverters for metro rolling stock could easily have a total weight of air-conditioning of trains is essential and the biggest load in the 1,200 kg and a peak efficiency of not more than 90 %. auxiliary system. An improvement in efficiency of only 1 % for the static inverter would lower the energy consumption of the auxiliary Medium-frequency technology system by the same amount.

With the advances in power electronics it became possible to Static inverters, which are sometimes also referred to as static build lighter and more efficient static inverters. The goal was to converters, or auxiliary power converters, are essential power electronic devices onboard the rolling stock. They Mass reduction and efficiency improvements are fed by the traction power supply and provide the onboard consumers with a suitable electrical voltage 1200 96% and frequency.

In typical metro systems, the traction power supply is 900 94% either 750 or 1,500 V DC. This high voltage cannot be used directly to power the auxiliary consumer onboard 600 92% the rolling stock. For example, most air-conditioning systems require a three-phase AC voltage of e.g. 3 x 300 90% 400 V AC, 50 Hz, while safety-critical communication, or control equipment is mostly powered with 110 V 0 88% DC. Consequently, static inverters convert the high DC Conventional 1st and 2nd generation 3rd generation voltage from the traction power supply into a suitable, lower AC or DC voltage. Most static inverters use a Mass [kg] Converter efficiency transformer as the main component for this purpose.

Such transformers are usually isolation transformers Mass reduction and efficiency improvements of static inverters 22

reduce the weight of the isolation transformer, while increasing its efficiency at the same time. The weight and size of an isolation transformer depends on its operating frequency. The higher the operating frequency, the lower the weight and size of an isolation transformer become. With today’s power electronics technology, operating frequencies of a few 10 kHz are achieved even for power ratings of 150 kVA or more. This reduces the weight of the isolation transformer from a few hundred kilos, to tens of kilos and therefore significantly lowers the static inverter's total weight.

Due to the higher operating frequency such static inverters are called medium-frequency static inverters.

The first medium-frequency static inverters were introduced in Europe about 15 years ago. The first metro rolling stock in Asia using medium-frequency static inverters were the 3-car trains for Kaohsiung metro made by Siemens, which use 1st generation SMARTconverters designed and manufactured by SMA Railway Technology GmbH of Germany. The units entered revenue service more than 10 years ago.

1st and 2nd generation medium-frequency static inverters Running the isolation transformer at a higher frequency requires a different static inverter configuration. A medium-frequency static inverter typically consists of an input inverter that supplies the isolation transformer with a medium-frequency AC voltage.

At the isolation transformer output this medium-frequency AC voltage is rectified and fed into the DC link of the output threephase inverter, which directly supplies the connected loads with the necessary voltage and frequency.

1st and 2nd generation medium-frequency static inverters were about 30 % lighter than conventional static inverters. While the weight reduction could have been bigger, it was necessary to focus on the reliability and maintainability of the equipment.

Otherwise, the higher number of electronic components used could have decreased reliability. This would have been

SMARTconverter 2th generation for Metro Sao Paulo in final assembly

unacceptable to rolling stock operators, despite the higher energy efficiency.

As an example, the Alstom Metropolis C830C trains used in Singapore on the Circle Line use 2nd generation SMARTconverters made by SMA Railway. The forced air-cooled units are supplied with 750 V DC from the traction power supply and output a threephase AC voltage of 3 x 400 V AC, 50 Hz, with a rated power of 127 kVA and additionally include a 27 kW, 110 V DC battery charger. This unit weighs about 900 kg and is one of the most reliable static inverters used in Singapore.

Today’s 3rd generation medium-frequency static inverters After ensuring reliability and using the return of experience gained during more than 10 years of revenue service with mediumfrequency static inverters, further reductions in weight, with simultaneous increases in efficiency, became feasible. In 2015, SMA Railway introduced its 3rd generation of medium-frequency

static inverters. Following successful projects in Europe, India and South America, the Klang Valley MRT Line 2 project in Malaysia is the first main application of this improved 3rd generation SMARTconverter in South East Asia.

The new unit will be used on the new rolling stock manufactured by Hyundai Rotem for the project. The forced air-cooled units are supplied with 750 V DC from the traction power supply and output a three-phase AC voltage of 3 x 400 V AC, 50 Hz, with a rated power of 155 kVA and additionally include a 25 kW, 110 V DC battery charger.

Even though its power rating is 15% higher compared to the 2nd generation SMARTconverter used in Singapore, this unit weighs only about 600 kg. In addition to the reduction in weight, the volume was also reduced by about 30 %. More importantly, the peak efficiency now reaches 95%, which is a reduction in power losses of about 50% compared to a conventional static inverter. This higher efficiency achieves Alstom’s Metropolis for Singapore significant energy cost savings, as the auxiliary systems semiconductors, such as silicon carbide (SiC) devices, which will onboard a metro train consume as much energy as the traction allow new design approaches. system, or even more. As mentioned previously, this is especially The design of a static inverter is always a compromise between true for South East Asia with the air-conditioning system being the the lowest possible weight, highest efficiency and reliability and biggest single load. also the costs. The introduction of medium-frequency static inverters made it possible to decrease weight significantly, The future Advances in power electronics are the key driver in the while increasing efficiency at the same time. The new power semiconductors can now be used to either reduce size and weight development of static inverters with medium-frequency galvanic isolation. The technology is mature and service-proven, further, or to increase efficiency. however, further advances in power electronics will also benefit Today, the size and weight of medium-frequency static inverters are already defined to a high degree by the necessary current static inverters, particularly the introduction of new power conducting capabilities and vehicle interfaces. While a further reduction certainly seems possible, the potential is limited and the effort required is high. Additionally, the small volume of the units already poses a challenge regarding thermal balance. On the other hand, the potential for an increase in efficiency seems promising.

The requirements for the next generation of mediumfrequency static inverters are not yet completely clear.

Should the size and weight be reduced still further, or is an increase in efficiency a better objective? Perhaps there is no general answer. In any case, further analysis is needed together with the train manufacturers and operators, to provide an answer and further improve railway energy efficiency.

SMARTconverter 3th generation for Klang Valley MRT Line 2

For more information contact: Patrick Trost Patrick.Trost@SMA-Railway.com

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24

The Challenges for a modern Train Detection System

By Jan-André Völkel Sales Manager Product Business, Transportation Systems, Thales Deutschland

A

xle Counters have gained massively in momentum and importance during the last several decades. More and more railway operators have been deciding to use axle counters instead of track circuits on their infrastructure, both for main line and urban rail. The Thales digital Multi Section Axle Counter System Az LM is suitable for train detection in every application. It combines the company’s experience of developing axle counter’s since the 1960s, with the latest technology for safe, secure, reliable and cost efficient train detection. The comprehensive multi-section axle counter Az LM solution is capable of managing almost any train detection application, regardless of the railway segment. There are only a few very reliable systems available in the market – and Thales’s axle counter has proven its superior benefits due to its unique working principle.

counter system enables the transmission of digital telegrams via Ethernet over unlimited distances. Additional benefits include the scalable redundancy of the system.

Cyber secure by design!

As a world leader in cryptographic security products and cutting edge strategies, Thales provides complex safeguard solutions for the transport sector. Cyber security, especially data protection, is of utmost importance in railway signalling. Our railway signalling products are secured in accordance with ISO 27001 and NIST 800-53 security requirements.

Unique design provides a reliable train detection solution The Az LM axle counter is composed of two corresponding wheel sensors, one on each side of the rail. One side is a double rail contact coil for transmitting, while the other side has a double rail contact coil for receiving. Thus, an electro-magnetic field is induced around the rail – and not alongside the rail. When the field is changed in the specific pattern of a steel wheel, only passing wheels (axles) are detected – no other objects such as metal cans, or safety boots are detected. This unique design ensures a very reliable train detection solution.

Another benefit of this system is the digital transmission from its outdoor detection points, to the indoor axle counter evaluator. The analogue wheel pulses captured at rail contacts are transferred to an adjacent trackside electronic unit, a few meters out of the danger zone. In the electronic unit, these analogue wheel pulses are translated into a digital count and transmitted by digital telegrams to the axle counter evaluator, several kilometres away.

This fault tolerant digital transmission is more reliable than any analogue transmission, as it is more resilient against external influences, such as electromagnetic interferences. The Thales axle

IP and classical architecture at a glance

Innovative solutions for seamless train operation The constant availability of the axle counter system is key to seamless train operation and the Az LM solution offers the highest availability by design. But we have taken this further: Axle counter technology in general suffers from the disadvantage that a reset needs to be applied after a section has been disturbed. This puts additional safety responsibility on the operators and the train drivers. The analysis of root causes for 25

the axle counter system itself. A manual configuration of the Meta Sections is not necessary.

The Meta section feature reduces the section downtime in case of disturbances to its absolute minimum, releases the operator, train drivers and maintainer from any additional responsibility/ workload and optimises the availability and safety of the train detection system to its best values without additional equipment.

Know-how transfer

Automated fault correction through automatic reset via meta sections

section failures shows that the vast majority of section failures are caused by some external influence such as power supply, cabling issues or inadmissible EMI crosstalk from return current, or the rolling stock itself. This means that in almost all cases no maintenance activities are necessary. Nevertheless, such a short term disturbance requires a reset procedure to be initiated, with all the negative consequences.

The automated reset functionality of our axle counters, called Meta section solution, brings an immense improvement in

Due to these unique features, benefits and easy adaptability to every kind of different interlocking and application, Thales axle counters are in use worldwide. As anticipated, we have been approached with many technical inquiries requesting support. These queries come from a variety of users and staff categories.

We therefore set up a comprehensive certified axle counter training program. The aim is to transfer knowledge to different users of the axle counter product, in order to avoid failures at the earliest possible moment during the different stages of the project life cycle. This training concept covers the complete product implementation cycle and is tailored for every staff category in a modular set-up.

Modern tools are used to support the training particularly to explain complex operational rules, such as reset procedures. The feedback from the training participants has been excellent. In addition to this, Thales provides a ”Train the Trainer Program” in order to certify local trainers in collaboration with Thales University.

Each certification is valid for two years and can be extended after the expiry date by two years, through attending a refresher course. This ensures that participants who have not worked with the axle counter system for a longer time can refresh their knowledge, without going through the whole course again.

Certified participants gain access to Thales myProducts service for additional online support.

Product Training is essential!

A scalable and flexible allocation of tasks is key for optimal investment into a train detection system. Engineering, installation, commissioning or maintenance of the axle counter system may be carried out by customers, contractors and railway staff.

availability and safety under such conditions.

In case the reason for this disturbance is no longer active and the counting information from the detection point is available again, the defective sections are automatically recovered by the Central Evaluator, provided the sections are free. The configuration of Meta sections is fully managed and automated by

26

An inadequate “know-how” level can lead to incorrect maintenance actions, blocking, or failing of the safety system.

To support qualified fault finding and rectification by the manufacturer, adequate fault reporting and analysis (recording of events, record of corrective actions and defective parts handling), which is also a key part of a maintenance training, is necessary.

Many of our customers worldwide have benefited from this training. The feedback from the training participants has been excellent. Thales incorporates both theory and hands-on practice to ensure that the content is understood and applied correctly.

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