The development of direct-driven wind power system using permanent magnet synchronous generator (PMSG) is very fast, and the back-to-back converter has been paid much attention for its excellent performance. The work principle of the generator-side converter (GSC) and control strategy of PMSG are explained in detail, and the steady-state and dynamic performances are analyzed by simulation. The experimental prototype is built to achieve generation and motor state operation, and the vector control of PMSG is realized by generator-side converter. The simulation and experiment results show that using PWM converter as generator-side converter for direct-driven wind power system with PMSG, can achieve good control performance for PMSG and provide possibility to supply excellent power energy transmitted to power grid.
Power system control strategy based on multi-objective optimization algorithm