Abstract：The torque ripple generated during the commutation process has been seriously hampered brushless DC motor (BLDCM) application in high precision system, such as aviation and aerospace. Through research the reason of the torque ripple, a new topology drive system which employ CUK converter instead of the traditional DC power circuit is proposed to operate with high static gain. Meanwhile, the suppression effect is further improved by the utilization of NPC three-level inverter bridge. Furthermore, the control strategy reaches the equal current changing rate of the incoming and outgoing phase. It makes non-commutation phase current maintain constant as well, in order to meet the purpose of torque ripple suppressing. Ultimately, the experimental results show that the proposed topology can effectively applied to BLDCM drive system, it significantly reduces the commutation torque ripple at both high and low speeds.
朱俊杰, 刘浩然, 蒋峰, 王湘中. 无刷直流电机转矩脉动抑制系统的新型拓扑研究[J]. 电工技术学报, 2018, 33(17): 4060-4068.
Zhu Junjie, Liu Haoran, Jiang Feng, Wang Xiangzhong. A New Topology Research on Torque Ripple Suppression System of Brushless Motor. Transactions of China Electrotechnical Society, 2018, 33(17): 4060-4068.
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2018, Vol. 33 
