Compared with normal Synchronous Motors, the Permanent Magnet Synchronous Motor (PMSM) is effective, high pull-in torque, fast speed response and well speed precision in open loop.

• 永磁同步电动机(Permanent Magnet Synchronous Motor，以下简写PMSM)，与普通交流电机相比，具有效率高，功率密度高、启动转矩大、响应速度快、开环转速精度高、等诸多优点。