Jiaxi Liu
ABSTRACT
In this paper, the strategy of high speed PMSM drive in PAM mode is proposed. The mathematical model of high-speed motor and PAM driving method are established. Secondly, the sensorless control method in PAM mode is given. Thirdly, the optimization method of commutation position is studied, and the closed-loop control method of commutation position based on virtual neutral voltage integration is proposed. Finally, the hardware circuit and software algorithm of the control system are designed, and the experimental platform is built to verify the effectiveness of the control method based on PAM.
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