Control of wind turbine driven a permanent magnet synchronous generator using backstepping-MTPA strategy control

In this paper a Backstepping Controller (BC) and a Maximum Torque Per Ampere (MTPA) strategy have been designed in order to control a permanent magnet synchronous generator (PMSG) at below and above rated wind velocity. At low wind speed, the wind turbine operates in partial load (PL) and the maximum amount of power is extracted. When the wind speed reaches the nominal value, the wind turbine operates in full load (FL). In this case, the pitch angle is controlled to limit the power. The proposed method is compared to the traditional PI via Matlab/Simulink software. The robustness tests show that the system has a faster and a more robust response.