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The second approach is via numerical methods, which leads to theFinite Element Method (FEM) and the Partial Element Equivalent Cir-cuit (PEEC) Method as the well-known and most suitable numerical 4 Page 21. Nowadays, with increasedcomputational power of personal computers, the PEEC modeling meth-odology turns out to be the most suitable method for three-dimensional(3D) EMC modeling and simulation of EMI filters and power convert-ers, as it is presented in this thesis. I would like to extend my sincerest thanksto the PES gang for the best-ever after-work time that made my PhDstudies unforgettable. Namely, thisapproach requires a set of measurements to be performed in order tocorrectly characterize all mutual couplings within an EMI filter. In the HF range, the parasitic effects em-anate from all power converter elements, such as capacitors, magneticcomponents, power diodes, power transistors, PCB traces, wires, andcables. The selection of the filter topology, and costs and spaceconstraints represent important factors that influence the design ofEMI filters to achieve the required noise attenuation with minimalconstructional efforts. Couplingbetween two numerical techniques, the PEEC method and the Bound- v Page 6. The EMC analysis enhances the EMC designof power converters from the trial-and-error approach to higher levelsthat allow power electronics engineers to gain a deep insight into theHF behavior prior to the final hardware implementation stage. GIFs Highlight your latest work via email or social media with custom GIFs. Chapter 7 summarizes the overall results presented in the disser-tation and some ideas for future research. 1.3 List of PublicationsThe parts of this thesis have been published in IEEE journals andinternational conference proceedings. Moreover, as the spaceconstraints become more pronounced with the trend for higher powerdensity, the PCB (Printed Circuit Board) design and the placementof EMI filter components have to be carried out carefully. When stored in a cool, dry place, your coffee stays fresh longer. What is wool-rich carpet (WRC), and what are its attributes. In the event of reproduction or exploitation of the document or parts thereof, the holding institution asks you, in accordance with usual scientific practices, to provide. For more information and to contact us please read this support document. Many thanks go to my colleagues Christoph Marxgut, Jonas Mu-lenthaler, Thiago Soeiro, Mario Schweizer, Gabriel Ortiz, Daniel Chris-ten, Arda Tusyuz, Andrija Stupar, Andreas Musing, Bernardo Cougo,Philipp Karutz, Christof Zwyssig, Daniel Aggeler, Thomas Friedli, An-dreas Looser, and Simon Round, for building such a cheerful and expir-ing working environment. It is shown that the PEEC-BIM modelingcan be used to assess the influence of these cancellation techniques onthe overall EMI filter behavior. Wenn Algorithmen Zeitschriften lesen - Vom Mehrwert automatisierter Textanrei. QR Codes Generate QR Codes for your digital content. Embed Host your publication on your website or blog with just a few clicks. This en-ables the 3D PEEC-based modeling to become a useful EMC tool forthe prediction of the High Frequency (HF) performance of EMI inputfilters and power converter systems, which is affected by PCB component placement, and self- and mutual-parasitic effects. The focus is placed on theEMC problems of commonly used SMPS, which in turn represent po-tential EMI noise generators, if operated with high switching frequency.The EMC analysis of SMPS is presented as systematic approach, including the identification of dominant noise sources and propagationpaths, and furthermore, the implementation of different EMI mitiga- 7 Page 24. EMI input filters are employed at the interface between theSMPS and the power line in order to provide the necessary EMI noiseattenuation defined by the EMC standards. Kovacevic M.Sc., ETH Zurichborn 5. November 1982 citizen of Belgrade, Serbia accepted on the recommendation ofProf. Video Say more by seamlessly including video within your publication. In the event of reproduction or exploitation of the document or parts thereof, the holding institution asks you, in accordance with usual scientific practices, to provide. Articles Get discovered by sharing your best content as bite-sized articles. The capabilities of the proposed PEEC-BIM methodare demonstrated step-by-step, distinguishing the influence of differentpassive components on the EMI filter performance. Many special thanks to Uwe Badstubner for his perfect friendship,great support and inspiration during the most important periods of myPhD studies.
Pedagogisch Werker (niveau 3 en 4), Medewerker Maatschappelijke Zorg (niveau 3 en 4), Onderwijsassistent (niveau 4), Sociaal Cultureel Werker (niveau 3 en 4) en Sociaal Maatschappelijke Dienstverlener (niveau 4). Moreover, it offers a feature for a compre-hensive study of EMI input filter performances and the prediction ofits HF behavior taking into account all parasitic and mutual couplingeffects. Namely, thisapproach requires a set of measurements to be performed in order tocorrectly characterize all mutual couplings within an EMI filter. The novel extension of the standard PEECmethod for modeling of magnetic components used in power electron-ics, the PEECBoundary Integral Method (PEEC-BIM), is described indetail A search for “des alten Testaments” will find exactly that sequence of words. It is shown thatparasitic effects can degrade EMI filter performances in the HF range,and therefore, the 3D EMC modeling represents a highly useful toolfor the prediction of the EMI filter behavior prior to building hard-ware prototypes. In the event of reproduction or exploitation of the document or parts thereof, the holding institution asks you, in accordance with usual scientific practices, to provide. ISO-NE Planning Process Implementation of Attachment K. Accordingly, theresearch presented in this thesis provides a good basis for building anEMC modeling environment for virtual prototyping of EMI input filtersand power converter systems. vi Page 7. Currently, in practice, there are two approaches used to efficientlymodel the HF behavior of EMI filters and power converters and toextract the parasitic parameters that significantly degrade the EMI fil-ter performances in the HF range. The second approach is via numerical methods, which leads to theFinite Element Method (FEM) and the Partial Element Equivalent Circuit (PEEC) Method as the well-known and most suitable numerical 4 Page 21. Social Posts Create on-brand social posts and Articles in minutes. Adobe Express Go from Adobe Express creation to Issuu publication Searching in “title” and in the content will always result in a fuzzy search, this means similar words will also be found. Nowadays, with increasedcomputational power of personal computers, the PEEC modeling meth-odology turns out to be the most suitable method for threedimensional(3D) EMC modeling and simulation of EMI filters and power convert-ers, as it is presented in this thesis. From the Foucauldian perspective, statements are material events inscribed in a historic practice of struggle, i.e. in the power relations. These points are furthermore addressed in more details in this PhDthesis restricting the scope of the research to the single-phase EMI inputfilters for off-line Switched Mode Power Supplies (SMPS). More Features Connections Canva Create professional content with Canva, including presentations, catalogs, and more. The developed PEEC-BIM modeling approach is used to evaluatethe applicability of the parasitic cancellation techniques proposed inliterature regarding the efficient cancellation of the self-parasitic andmutualcoupling effects in complete EMI filter circuits. In Chapter 6, single-phase single- and two-stage EMI filters are ex-amined applying the PEEC-BIM modeling and simulation. The current status of the EMC modeling and simulation aimed forpower electronics is briefly summarized in the following: (i) EMC analysis has been performed adopting the simplifications ofthe actual physical properties of the power components, which leadsto either over-design or under-design, i.e. non-optimal design, of theEMI input filters. Itis shown that the PEEC-BIM method implemented in an EMC mod-eling environment enables a step-by-step EMC analysis distinguishingthe impact of various electromagnetic effects on the EMI filter perfor-mance and allowing an optimal EMI filter design. The design of EMI input filters is performed as finalstep to ensure an EMI noise emission below the specified limits. Commercial software can be compared fromthe aspects of accuracy, speed, flexibility, user-friendliness of the GUI,and its applicability to special applications. In Chapter 5, the PEEC-BIM based modeling of EMI filter capac-itors and inductors and PCB layouts are described with respect to theirHF characteristics in the wide frequency range up to 30 MHz. The central topic of this PhD thesis is a new PEEC-based methoddeveloped and implemented into a 3D CAD tool, GeckoEMC, whichallows the modeling of practical EMI filter inductors. With Friis, save money and start making life taste better. Help Center Here you'll find an answer to your question. Many special thanks to Uwe Badstubner for his perfect friendship,great support and inspiration during the most important periods of myPhD studies. See Full PDF Download PDF About Press Blog People Papers Topics Job Board We're Hiring.
The key contribution of this dissertation is presented in Chapter 4.This chapter covers the physical and mathematical interpretation of thePEEC modeling approach. Entrepreneurial Creativity: doing what it says on the tin. Therefore, virtual prototyping has been seenas a useful design approach allowing the evaluation of EMI filterswith the same topology but different PCB layouts without the needto build different hardware prototypes. The main task of the EMC analysis isthe identification of the dominant noise sources and propagation paths.The second step is then the control of EMI noise emissions includingthe measures to be taken in order to reduce the area of the currentcarrying loops behaving like antennas, and to prevent non-compliantEMC behavior due to the mutual coupling of the filter componentsand parasitic HF effects. The geometry and material characteristics of thePEEC-based models are determined to match the measured ESL, ESR,or EPC and actual components properties. Het is een studieboek met veel oefen- en leermogelijkheden. An experimental verification is carried on to validate the proposed method.A good measurement setup consisting of a vector-network analyzer andisolation 1:1 transformers has been built to measure the filter transferfunction with minimal external disturbance. The EMC aspects aretypically considered in the end phase of the design process that leadsto higher design costs and prolongs the time to market. A search in this field delivers results from the indexed structural data. The design of EMI input filters is performed as finalstep to ensure an EMI noise emission below the specified limits. With Friis, save money and start making life taste better. From the Foucauldian perspective, statements are material events inscribed in a historic practice of struggle, i.e. in the power relations. The wide field of applications of Switched Mode Power Supplies(SMPS) and the stringent EMC regulatory requirements are the maindrivers for the comprehensive EMC analysis and the development of 2 Page 19. During the five years as a member of the PESteam, I developed my research skills to a high extent and gained a greatknowledge and experience in various fields of power electronics. A large number of studies about the prediction and quantitativeassessment of parasitics has been carried out, however, a comprehen-sive, fast and easy-to-use Computer-Aided Design (CAD) tool is stillmissing, what points to the motivation of the research presented in thisPhD thesis. The PEEC-BIM modelingcapabilities are finally demonstrated on the modeling example of a prac-tical EMI filter for a single-phase PFC boost rectifier input stage. The developed modelof EMI filter inductors is implemented into the developed GeckoEMCtool and verified by both impedance and stray field measurements. National Engineering Research Center for Process Automation. The selfcharacteristics of individualcomponents are extracted from impedance measurements and the coupled inductors are calculated from the S-network parameters gained alsovia the measurements using a network-spectrum analyzer. A search in this field delivers results from the indexed structural data. In Chapter 6, single-phase single- and two-stage EMI filters are ex-amined applying the PEEC-BIM modeling and simulation. The self-parasitics are characterized by the equivalent series inductance ESLand the equivalent series resistance ESR of capacitors and the equiva-lent parallel capacitance EPC of inductors, which are modeled via thePEEC-BIM method. The experimental verifica-tion of mutual coupling effects shows that the developed PEEC-basedmodels correctly describe both the internal and external electromag-netic behavior of EMI filter components. I would like to extend my sincerest thanksto the PES gang for the best-ever after-work time that made my PhDstudies unforgettable. I sincerely thank my friendsJelena Dragas, the Tanaskovic family, and Milica Zivkovic for our greattime that helped me to cope with all life-work challenges in Zurich. It is shownthat the developed PEEC-BIM method enables detailed EMC analysistaking into account different electromagnetic effects of the PCB layout,e.g. self-parasitics, mutual coupling, and electrostatic shielding. Social Posts Create on-brand social posts and Articles in minutes. When stored in a cool, dry place, your coffee stays fresh longer. The capabilities of the proposed PEEC-BIM methodare demonstrated step-by-step, distinguishing the influence of differentpassive components on the EMI filter performance. Thus, so far a fast and accurate EMC tool for compre-hensive EMC modeling of power converter systems has been missing inthe engineering practice.
Searching in “title” and in the content will always result in a fuzzy search, this means similar words will also be found. I would like to extend my sincerest thanksto the PES gang for the best-ever afterwork time that made my PhDstudies unforgettable. It also allows to find an optimal EMI filter structure,which is in turn limited by the space constraints in practice. Accordingly, theresearch presented in this thesis provides a good basis for building anEMC modeling environment for virtual prototyping of EMI input filtersand power converter systems. vi Page 7. GIFs Highlight your latest work via email or social media with custom GIFs. A search in this field delivers results from the indexed structural data. To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser A search for “des alten Testaments” will find exactly that sequence of words. The modeling of EMI filter inductors is defined as the main taskand therefore, the toroidal core shape is investigated first, which is typ-ically used for the design of EMI filter inductors. With Friis, save money and start making life taste better. The current status of the EMC modeling and simulation aimed forpower electronics is briefly summarized in the following: (i) EMC analysis has been performed adopting the simplifications ofthe actual physical properties of the power components, which leadsto either over-design or under-design, i.e. non-optimal design, of theEMI input filters. Power electronics engineers have developed different techniquesto decrease EMI noise caused by fast switching operations of powerconverters, with a special attention dedicated to the design of EMIinput filters. Couplingbetween two numerical techniques, the PEEC method and the Bound- v Page 6. Chapter 7 summarizes the overall results presented in the disser-tation and some ideas for future research. 1.3 List of PublicationsThe parts of this thesis have been published in IEEE journals andinternational conference proceedings A search for “des alten Testaments” will find exactly that sequence of words. For more information and to contact us please read this support document. The selection of the filter topology, and costs and spaceconstraints represent important factors that influence the design ofEMI filters to achieve the required noise attenuation with minimalconstructional efforts. ISO-NE Planning Process Implementation of Attachment K. Adobe Express Go from Adobe Express creation to Issuu publication. Themain challenge of this approach is to accuratelly define an equivalentcircuit that corresponds to the real physical behavior, and furthermorethe complexity of such a circuit can be computationally very expensive,as illustrated in Fig. 1.3 for simple buck converter. Figure 1.3: Equivalent circuit used to model a PCB layout showingthe degree of complexity. Add Links Send readers directly to specific items or pages with shopping and web links. A search in this field delivers results from the indexed structural data. A search for fort will also find forts and fortress. The capabilities of the proposed PEEC-BIM methodare demonstrated step-by-step, distinguishing the influence of differentpassive components on the EMI filter performance. The list of publications, whichresulted from the presented PhD research, is given in the following: Conference Papers 1. I. Kovacevic, A. Musing, T. Friedli, J. W. Kolar, ElectromagneticModeling of EMI Input Filters, Proc. The central topic of this PhD thesis is a new PEEC-based methoddeveloped and implemented into a 3D CAD tool, GeckoEMC, whichallows the modeling of practical EMI filter inductors. In Chapter 5, the PEEC-BIM based modeling of EMI filter capac-itors and inductors and PCB layouts are described with respect to theirHF characteristics in the wide frequency range up to 30 MHz. QR Codes Generate QR Codes for your digital content. Moreover, EMI filters are prone to the electromagnetic stray fieldsthat have to be taken into account with their integration into powerelectronic systems. All previously mentioned challenges highlight theneed for a fast and accurate CAD tool for power electronics engineers,used during the design phase of EMI input filters. Many thanks go to my colleagues Christoph Marxgut, Jonas Mu-lenthaler, Thiago Soeiro, Mario Schweizer, Gabriel Ortiz, Daniel Chris-ten, Arda Tusyuz, Andrija Stupar, Andreas Musing, Bernardo Cougo,Philipp Karutz, Christof Zwyssig, Daniel Aggeler, Thomas Friedli, An-dreas Looser, and Simon Round, for building such a cheerful and expir-ing working environment.
The list of publications, whichresulted from the presented PhD research, is given in the following: Conference Papers 1. I. Kovacevic, A. Musing, T. Friedli, J. W. Kolar, ElectromagneticModeling of EMI Input Filters, Proc. The self-parasitics are characterized by the equivalent series inductance ESLand the equivalent series resistance ESR of capacitors and the equiva-lent parallel capacitance EPC of inductors, which are modeled via thePEEC-BIM method. Adobe Express Go from Adobe Express creation to Issuu publication. Issuu turns PDFs and other files into interactive flipbooks and engaging content for every channel. In the event of reproduction or exploitation of the document or parts thereof, the holding institution asks you, in accordance with usual scientific practices, to provide. It also allows to find an optimal EMI filter structure,which is in turn limited by the space constraints in practice. The capabilities of the proposed PEEC-BIM methodare demonstrated stepby-step, distinguishing the influence of differentpassive components on the EMI filter performance. During the five years as a member of the PESteam, I developed my research skills to a high extent and gained a greatknowledge and experience in various fields of power electronics. Het is een studieboek met veel oefen- en leermogelijkheden. Many thanks go to my colleagues Christoph Marxgut, Jonas Mu-lenthaler, Thiago Soeiro, Mario Schweizer, Gabriel Ortiz, Daniel Chris-ten, Arda Tusyuz, Andrija Stupar, Andreas Musing, Bernardo Cougo,Philipp Karutz, Christof Zwyssig, Daniel Aggeler, Thomas Friedli, An-dreas Looser, and Simon Round, for building such a cheerful and expiring working environment. Embed Host your publication on your website or blog with just a few clicks. In the HF range, the parasitic effects em-anate from all power converter elements, such as capacitors, magneticcomponents, power diodes, power transistors, PCB traces, wires, andcables. As a neces-sary part, an EMI filter introduces additional cost and volume, whichis about 30 % of the total volume, and thus it should be properly builtand placed within the power converter system. A search in this field delivers results from the indexed structural data. GIFs Highlight your latest work via email or social media with custom GIFs. More Features Connections Canva Create professional content with Canva, including presentations, catalogs, and more. The central topic of this PhD thesis is a new PEEC-based methoddeveloped and implemented into a 3D CAD tool, GeckoEMC, whichallows the modeling of practical EMI filter inductors. An EMC modeling environment offers power electronicsengineers to efficiently design power electronic systems in compliancewith the EMC standards. I would like to thank Gecko-Research for a very interesting researchtopic that enabled me to develop a useful expertise in the field of mod-eling and simulation for power electronics. Moreover, it offers a feature for a compre-hensive study of EMI input filter performances and the prediction ofits HF behavior taking into account all parasitic and mutual couplingeffects. In Chapter 6, single-phase single- and two-stage EMI filters are ex-amined applying the PEEC-BIM modeling and simulation. I sincerely thank my friendsJelena Dragas, the Tanaskovic family, and Milica Zivkovic for our greattime that helped me to cope with all life-work challenges in Zurich. Dr. Johann W. Kolar for supporting me to con-tinue my Post-Diploma studies at ETH Zurich and for giving me theopportunity to perform my PhD research in the Power Electronic Sys-tems Laboratory (PES). To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser. This site has been archived or suspended for a violation of our Terms of Service. National Engineering Research Center for Process Automation. This doctoral dissertation presents research conducted on the EMCanalysis of EMI input filters using 3D electromagnetic modeling basedon the Partial Element Equivalent Circuit (PEEC) method. Therefore, virtual prototyping has been seenas a useful design approach allowing the evaluation of EMI filterswith the same topology but different PCB layouts without the needto build different hardware prototypes. Couplingbetween two numerical techniques, the PEEC method and the Boundv Page 6.
Thus, so far a fast and accurate EMC tool for compre-hensive EMC modeling of power converter systems has been missing inthe engineering practice. Chapter 7 summarizes the overall results presented in the disser-tation and some ideas for future research. 1.3 List of PublicationsThe parts of this thesis have been published in IEEE journals andinternational conference proceedings. Entrepreneurial Creativity: doing what it says on the tin. Many thanks go to my colleagues Christoph Marxgut, Jonas Mu-lenthaler, Thiago Soeiro, Mario Schweizer, Gabriel Ortiz, Daniel Chris-ten, Arda Tusyuz, Andrija Stupar, Andreas Musing, Bernardo Cougo,Philipp Karutz, Christof Zwyssig, Daniel Aggeler, Thomas Friedli, An-dreas Looser, and Simon Round, for building such a cheerful and expir-ing working environment. This site has been archived or suspended for a violation of our Terms of Service. The EMC aspects aretypically considered in the end phase of the design process that leadsto higher design costs and prolongs the time to market. Download Free PDF View PDF See Full PDF Download PDF Loading Preview Sorry, preview is currently unavailable. The EMC modeling and calculation of power converters is regardedto be not a straightforward task. Namely, thisapproach requires a set of measurements to be performed in order tocorrectly characterize all mutual couplings within an EMI filter. The modeling of EMI filter inductors is defined as the main taskand therefore, the toroidal core shape is investigated first, which is typ-ically used for the design of EMI filter inductors. This enabled the full-wave PEEC based modelingfrom DC to high frequency. National Engineering Research Center for Process Automation. Statistics Make datadriven decisions to drive reader engagement, subscriptions, and campaigns. Embed Host your publication on your website or blog with just a few clicks. A search in this field delivers results from the indexed structural data. The starting point is a brief introduc-tion to EMC standards and terminology defined by international andnational institutions in order to emphasize the main EMC requirementsthat have to be met by all power electronic systems. The measurementsof conducted and radiated EMI noise levels that have to be performed inaccordance to the EMC norms are described. A search for fort will also find forts and fortress. Digital Sales Sell your publications commissionfree as single issues or ongoing subscriptions. How to confirm Leitzahlen so that they show up in AAA. Adobe InDesign Design pixel-perfect content like flyers, magazines and more with Adobe InDesign. ISO-NE Planning Process Implementation of Attachment K. A search for bibliographical metadata will deliver results from the bibliographic records only. Thechallenges, which arise with the design of EMI filters in practice, areinvestigated. The first approach is based on thelumped elements equivalent circuit method, which is using the repre-sentation of an EMI filter as a two-port network. Add Links Send readers directly to specific items or pages with shopping and web links. The application of the PEEC method in power electronicshowever, has been delayed as the PEEC-based systems require pow-erful computational platforms that were unavailable in the 1970s90s.Nowadays, with the tremendous advancement of computer technology,PEEC models can be integrated easily into standard circuit solvers due 5 Page 22. This doctoral dissertation presents research conducted on the EMCanalysis of EMI input filters using 3D electromagnetic modeling basedon the Partial Element Equivalent Circuit (PEEC) method. Searching in “title” and in the content will always result in a fuzzy search, this means similar words will also be found. Wenn Algorithmen Zeitschriften lesen - Vom Mehrwert automatisierter Textanrei. Kovacevic M.Sc., ETH Zurich born 5. November 1982 citizen of Belgrade, Serbia accepted on the recommendation of Prof.
