A ROBUST CONTROL FOR PERMANENT MAGNET SYNCHRONOUS GENERATOR ASSOCIATED WITH VARIABLE SPEED WIND TURBINE

Abstract

This paper presents a simple and robust control scheme of permanent magnet synchronous generators (PMSG) wind turbine with two full-scale controllable three phase converter connected to the grid. Our aim is to drive wind turbine at an optimal rotor speed in order to perform maximum power point tracking control of the wind generation system, therefore a nonlinear backsteeping control is applied to the PMSG which is based on both feedback laws and Lyapunov theory. The PMSG wind turbine is integrated to the grid through three phase converter which is controlled by classical pi controller of the active and reactive power. The system performance and robustness is investigated using Matlab/simulink® with SimPowerSystems block for 2.5 kW PMSG wind turbine.