WSEAS Transactions on Power Systems
Print ISSN: 1790-5060, E-ISSN: 2224-350X
Volume 10, 2015
Power Quality Improvement in Wind Energy Conversion System of Grid Interfacing Inverter Using Hysteresis Band Current Controller
Authors: , ,
Abstract: Recently renewable energy resources especially wind power integration has been extensively increased in the electric power distribution system. To exploit renewable energy sources more effectively, grid connection of renewable energy sources is done through power electronics interfaces. But it causes problem of voltage fluctuation and harmonic distortion. In this paper, an appropriate model of wind energy conversion system is presented and simulation techniques are discussed for studying power quality problems due to the voltage fluctuation and harmonic distortion in the system. A hysteresis band current control strategy of grid side power converter is presented for grid synchronisation. The proposed power electronics interface and control technique calculates compensating signal and injects it at point of common coupling (PCC). Generation of gate signal of voltage source inverter (VSI) is done through hysteresis band current controller (HBCC). Matlab/simulink is used to simulate wind energy conversion system and control strategy implemented using HBCC to ensure high quality of the injected power and grid synchronization.
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Keywords: Hysteresis band current controller, phase locked loop (PLL), point of common coupling, power quality, wind energy conversion system (WECS)
Pages: 20-26
WSEAS Transactions on Power Systems, ISSN / E-ISSN: 1790-5060 / 2224-350X, Volume 10, 2015, Art. #3