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Through the analysis of the mathematical model of permanent magnet synchronous motor (PMSM), the paper proposed the method of fuzzy PID controller, and applied to the speed controller of permanent magnet synchronous motor double closed loop vector control system, exactly implementing the speed controller of permanent magnet synchronous motor. Comparing with the traditional PID controller, this method gains favorable performance in the speed controller of permanent magnet synchronous motor.

Permanent Magnet Synchronous Motor Vector Control System Based on the Fuzzy PID Controller