Development of Grid Connected Matrix Converter Interfaced Permanent Magnet Synchronous Generator for Wind Energy Conversion System

Abstract

This thesis focuses on the development of Matrix Converter interfaced Permanent Magnet Synchronous Generator (PMSG) for wind energy conversion system (WECS). It focuses on design and modeling aspects of the different components of the WECS like the basic model of PMSG, SVM for matrix converter, wind newlineturbine, Fuzzy logic based optimal maximum power point tracking system using MATLAB/Simulink. It also presents the hardware development of laboratory 2.2 newlinekW prototype of matrix converter interfaced PMSG based wind energy conversion system using WAVECT and MATLAB/Simulink/XSG. newlineThe space vector pulse width modulation based matrix converter for wind power newlineapplication are proposed and implemented. The space vector modulation based newlineswitching for power converter has been selected because it provides excellent output performance, optimized efficiency, and high reliability compared to newlineconventional Pulse Width Modulation. newlineA complete dynamic modeling and a new approach of steady state analysis for an newlineAC/AC matrix converter fed wind energy conversion system are set forth. The dynamic responses as well as the steady state performance characteristics of the system are studied under various load conditions. Finally, the operation of the newlineproposed converter is experimentally validated using a laboratory prototype. newlineHere, wind turbine emulators which drive the PMSG and represents the static and newlinedynamic characteristics of an actual wind turbine have been developed for laboratory tests. The wind speed changes and load switching conditions are performed using the wind turbine emulator, which consist of dc shunt motor drive, newlinewhose control is implemented using WAVECT control unit and MATLAB/Simulink/XSG. It obtains the wind speed values and, by using the newlineturbine characteristics and dc motor speed, calculates the torque command of the wind turbine. In this way, it is able to reproduce the steady and dynamic behavior of a real wind turbine to the energy conversion system. newline