Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 1998.10a
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- Pages.380-385
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- 1998
CURRENT CONTROL ALGORITHM TO REDUCE TORQUE RIPPLE IN BRUSHLESS DC MOTORS
- Lee, Kwang-Woon (School of Electrical Engineering, Korea University) ;
- Park, Jung-Bae (School of Electrical Engineering, Korea University) ;
- Yeo, Hyeong-Gee (School of Electrical Engineering, Korea University) ;
-
Yoo, Ji-Yoon
(School of Electrical Engineering, Korea University)
;
- Jo, Hyun-Min (Samsung Electronics co.)
- Published : 1998.10.01
Abstract
This paper proposes a current control algorithm to reduce the torque ripple to commutation in unipolar PWM inverter-fed trapezoidal brushless dc motor drives. In this paper, we analyze the average voltage variation of the conducting phase due to commutation, and design a current controller to compensate for the average voltage variation. The proposed method predicts the duration of commutation to reduce the torque ripple due to over-compensation. Experimental results are presented that validate the proposed method.
Keywords