Maximum Power Tracking Control of Direct-Driven Permanent Magnet Synchronous Wind Generator

The control technology of direct-driven permanent magnet synchronous wind power generation (PMSG) system is studied by using virtual instantaneous power phase-locked speed detection method. The speed sensorless control technology of generator-side converter based on stator voltage orientation is realized. The grid-side inverters are realized by using voltage synthesis vector oriented SVPWM technology. Power decoupling control and maximum power capture are implemented. Compared with the traditional speed sensor detection method, The simulation results of MATLAB show that the system has fast dynamic response, can accurately detect the speed and rotor position of the generator, and has the functions of MPPT and power decoupling control, which verifies the feasibility and correctness of the algorithm.