Design of AC-DC-AC Power Electronic Converter for PMSG Based WECS

wind energy performs one of the most important energy sources due to energy crisis and developing issues on global warming. For researches in power electronics, one of the hugest tough hassles is to develop WECS in order that the electrical energy from wind turbine is transformed to the utility line with better efficiency and better high-quality. The development of latest WECS goes back to the year 1971 but it is current decades that have indicated fast development in the field. This paper includes a design of equivalent power electronic controller for a permanent magnet synchronous generator (PMSG) based wind energy conversion system in MATLAB for independent and grid linked operation. In which output of PMSG is fed to the load through AC-DC-AC controller .The output frequency and voltage of PMSG is unstable caused by stochastic nature of wind and isn't match with the grid frequency. In order to put it into grid we have need of power electronic interface. The effects are made to maintain the variable output of PMSG to the constant voltage and frequency. The sine PWM approach is presented for the same.