Desired Reference Model and Observer Based on T-S Fuzzy Control for PMSG Based Wind Energy Conversion System

Abstract

A novel tracking fuzzy controller for Permanent Magnet Synchronous Generator (PMSG) based on Variable Speed of Wind Energy Conversion System (VS-WECS) is the focus of this paper. The fuzzy control is developed in such a way to handle all the states of the PMSG system to follow their optimum references. Firstly, to build the T-S Fuzzy Controller (T-SFC), the model of the generator is used. An observer-based fuzzy is constructed for disturbance rejection and for getting the maximum aerodynamic power. Then, the new law fuzzy controller gains and the fuzzy observer gains are calculated using Linear Matrix Inequality (LMI) approach. In order to evaluate the effectiveness of the advanced controller, the obtained results are compared to those of the Proportional Integral (PI) controller at a wide range of wind speed. Finally, according to the simulation results, the proposed control approach is efficient and gives better performance in transient and permanent regimes.