Improvement of the Wind Power System Based on the PMSG

Given the role of PMSG in the wind power system, several commands are proposed to improve the quality of energies supplied to the electrical grid. In this work, two control strategies are presented and applied to the static converter in order to control the electromagnetic torque and the active and reactive power exchanged between the PMSG and grid. Firstly, in order to extract a maximum power from the wind a speed control strategy (MPPT) has been presented, followed by a PMSG model in reference d-q. Then, the conception of the Field-Oriented Control (FOC) and the sliding mode control (SMC) are developed and tested with Matlab/Similink, where these controls make it possible to operate the system in the best performances in dynamic regimes. And finally, we ended by a discussion about the interpretation of the simulation results in order to compare the advantages and the performances of each control.