Scientific Journal of Impact Factor (SJIF): 4.72
e-ISSN (O): 2348-4470 p-ISSN (P): 2348-6406
International Journal of Advance Engineering and Research Development Volume 4, Issue 11, November -2017
Electricity generation with the hybrid power generation system Srinivas Kunta1 Faculty in KU College of Engineering & Technology, Dept. of Electrical & Electronics, KU campus,Warangal. cnuchinnu.kunta@gmail.com
ABSTRACT: In this study, the electric energy required for feeding of small power receivers at two laboratories of KU college of Engineering and Technology, Department of Electrical and Electronics is met by hybrid wind-solar power generation system. For this purpose, 600 W 3-phase permanent magnet synchronous generator (PMSG) based wind power generation system (WPGS) and solar power generation system (SPGS) consisting of 190W 3 pieces mono crystal solar panel are combined to build a 1170W wind-solar hybrid power generation system. Besides, to accumulate the consumption excess electric energy or lack of generation, to ensure energy continuity via renewable power system, 100 Ah 12V 6 pieces gel jeep cycle accumulator groups are installed on the wind-solar hybrid power generation system (WSPGS). Then, the block diagrams of the system elements forming the hybrid power generation system and SimPowerSystems in the Matlab/Simulink are used to realize the simulation of the wind-solar hybrid power generation system with battery support. When the curves obtained from the simulation results are examined, it is determined that the electrical and mechanical magnitudes in parallel to the dynamic behavior of the installed hybrid power generation system are so similar. Keywords: Hybrid power generation, Wind Power Generation System (WPGS), Solar Power Generation System (SPGS), Power Flow Control with Battery Support, Simulation, Matlab/Simulink. I. INTRODUCTION It is known that electric energy, one of the consumption tools of today, is being increasingly required by all the countries in all their activity environments. Besides, the quantity of production and consumption of energy and its environmental and efficiency qualities are among the elements that contribute to development levels of countries [1]. Energy need of the world have been covered mostly from fossil base fuels so for. For this reason, countries are highly depended on these fuels. However, as fossil base sources have negative impacts on environment, their reserves are about to be consumed and they increase the dependency of countries on foreign countries, new energy sources are tried to be found. Within this process, the most important researches are made on renewable energy sources that do not have negative impacts on the environment [2]. In general, renewable energy sources consist of wind and solar energies as well as non-fossil base energy sources such as hydroelectric, geothermal, biomass (wood, solid wastes, ethanol, etc) tide. Hydroelectric and wind energy constitute the biggest share in renewable energy sources. Though the shares of wind and solar energies in electric generation are very low, it is expected that these shares will increase in the future. However, the wind turbine and solar cell have been used as hybrid together or separately for electric generation since 1970â€&#x;s, generally in areas far from the electric network lines. Electric generation with wind turbine or solar cell have some hindrances. The most important hindrances include the facts that the generated energy is interrupted, the initial installation costs are high and there exists no sufficient technological knowledge [3, 4]. While electricity from sun can only be generated in daytime the load remains without energy during the rest of day. Though there is not such a definite limitation in the wind energy, at some hours of a day, electricity can be generated but at other hours, it is impossible to do so. This interruption may be removed by storing the generated energy in the battery when the consumption is low and feeding the load from the battery when the generation is insufficient. The electric energy to be generated from the sun and wind changes depending on seasons. In winter season, it may not be possible to generate electricity from the sun for days. In the same way, in spring and summer months, electric generation from the wind remains at very low levels [5, 6]. Solving the seasonal electricity generation interruption problem through increasing of battery capacity will both increase the cost and is not possible in most places. Depending on characteristics of the region where the
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