Maximum Power Point Tracking Control of PMSG Wind Turbine Based on Action Dependent Heuristic Dynamic Programming
Shao Jian Song, Fei Long Zhang, Bilian Liao · Applied Mechanics and Materials · 2012
Wind turbine system with Permanent Magnet Synchronous Generator (PMSG) is a complex nonlinear system of multi-interference and strong coupling, so its accurate mathematical model is difficult to be built. Due to the randomness of the wind, traditional PID control is often hard to get satisfactory results in the Maximum Power Point Tracking (MPPT) control of the wind turbine. A new adaptive optimization control based on action dependent heuristic dynamic programming (ADHDP) is presented to control the stator current of PMSG. The stator current of the generator can adapt the change of the wind speed, so the MPPT of PMSG can be achieved. Simulation results in Matlab/Simulink show that the ADHDP controller can get better performances than PID controller.