Research on wind energy distributed generation in microgrid

Wind power is one of the common distributed generation in microgrid. According to the requirements of microgrid, permanent magnet synchronous wind generator (PMSWG) for wind energy distributed generation was designed in this paper and it has simple structure, easy control and low cost characteristics, non-controllable rectifier and grid-connected PWM convertor is adopted as the AC grid-connected circuit for the distributed generation. Researching on its operating and control strategy, this paper has realized the d/q power decoupling control of the wind energy distributed power and proposed a novel maximum wind power tracking strategy based on the principle of direct-control grid-connected power which can directly realize grid power control through grid current the only one parameter. The experimental system was established and the experiment results have proved correctness and feasibility of the proposed wind energy distributed generation and its control method, it is a suitable wind energy distributed generation for microgrid.