The permanent magnet synchronous generator of 5 MW output power,which is driven directly without gear system,was de-signed by equivalent magnetic-circuit method in this paper. The performance of the ultra-high-power directly-driven permanent magnet synchronous generator with designs featuring 378-slot and 78-pole as well as 324-slot was investigated. The drawbacks re-garding transportation inconvenience and large size were overcome based on the optimization of generator structure. Simulation results showed that the 5 MW permanent magnet synchronous generator with inner and outer rotors is feasible and effective.
关键词
永磁风力发电机/直驱/内外转子
Key words
Permanent magnet synchronous generator/Directly-driven/Inner and outer rotors