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A Current Control Strategy for Torque Ripple Reduction on Brushless DC Motor during Commutation  

권경준 (강원대 전기공학과)
김상훈 (강원대 전기전자정보통신공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.9, no.3, 2004 , pp. 195-202 More about this Journal
Abstract
This paper presents a current control strategy to reduce torque ripple of Brushless DC Motor during con)mutation. The torque ripple is mainly caused by the inequality in the rate of change between rising current and decaying one during commutation. And also it is influenced by the shape of real back EMF Therefore, in the proposed control strategy, considering real back EMF a compensation voltage is generated to equalize the rate of change in these commutating currents. And then, by providing the compensation voltage during commutation, the torque ripple can be reduced. The simulation md experimental results verify that the proposed method can reduce the torque and the current ripples significantly.
Keywords
Brushless DC Motor; Commutation; Torque ripple; Current slopes; Compensation voltage;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
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