A Robust Control Strategy Research on PMSG-Based WECS Considering the Uncertainties

This paper proposes a robust control strategy for the uncertainties of permanent magnet synchronous generator-based wind energy conversion system, based on state feedback. Meanwhile, the detailed design and analysis process of this robust controller also have been presented. Compared with the conventional control, the new method with a better robustness can not only make the whole closed-loop system stable but also reduce the major harmonics and total harmonic distortion of currents and ripples of torque. And then, we set up a detailed 2 MW simulation test platform based on MATLAB/SIMULINK/SimPowerSysterms. The simulation results verify the effectiveness and correctness of the algorithm.