Modeling , Simulation And Perfomance Analysis of AC-DC-AC PWM Converters Based Wind Energy Conversion System

Abstract

In order to send wind energy to a utility grid, a variable speed wind turbine requires a power electronic converter to convert a variable voltage variable frequency source into a fixed voltage fixed frequency supply. Generic three-phase AC-DC-AC converter, converter control methods for wind power generation, wind turbine, two mass drive train and PMSG generator are modeled in the thesis using MATLAB / SIMULINK for establishing variable-speed wind energy conversion systems. Variable speed wind power generation system modeling and simulation are essential methods both for understanding the system behavior and for developing advanced system control strategies. The developed wind energy conversion system have been validated through simulation study using MATLAB / SIMULINK, under different input/output conditions like constant wind speed, variable wind speed, and different fault conditions. The simulation results verify the validity of the developed wind energy conversion system and its controls.