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Advanced PID scheme for low torque ripple PMSM drive

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3 Author(s)
Jong-Heon Lee ; Dept of Mechatronics Engineering, KyungSung University, Korea ; Jin-Woo Ahn ; Dong-Hee Lee

This paper presents a speed control scheme of a PMSM which has torque compensator to reduce the speed error and ripple. The proposed speed controller is based on the conventional PI control scheme. But the additional torque compensator which is different to the conventional differential controller produces a compensation torque to suppress speed ripple. In order to determine the proper compensation, the activation function which has discrete value is used in the proposed control scheme. With the proposed activation function, the compensation torque acts to suppress the speed error increasing. The proposed speed control scheme is verified by the computer simulation and experiments of 400[W] PMSM. In the simulation and experiments, the proposed control scheme has better control performance compare to the conventional PI and PID control schemes.

Published in:

2012 IEEE Vehicle Power and Propulsion Conference

Date of Conference:

9-12 Oct. 2012