Study on a New Control Strategy of Inverter of Outer Rotor Permanent Magnet Generator Wind Power System

For the consideration of the existing switching device power level, a converter circuit topology is proposed in this paper, which is accorded with the requirement of highpower direct-drive outer rotor permanent magnet generator. Particularly, a control method based on “non-controlled retification, boost chopper and SPWM inverter circuit” is proposed. Designs of the boost chopper circuit and the control system structure of SPWM inverter are mainly performed, then the block diagrams and control programs of the whole control system are set up. Finally Matlab/Simulink is used to carry on the simulation. The result of simulation showed that this method could meet the requirement of wind power generation system, and the feasibility and accuracy of the method are fully confirmed.