环形绕组无刷直流电机的混合换向方法

doi:10.19595/j.cnki.1000-6753.tces.211159

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Abstract Circular winding brushless DC motor (CWBLDCM) is a novel non-sinusoidal multiphase permanent-magnet one whose torque performance is closely related to the commutation of current. This paper proposes a hybrid commutation method, in which both the back-EMF and the DC-bus voltage are exploited to improve the torque performance. With the variation of two commutation parameters, β and γ, the hybrid commutation process can be classified into four typical states. Firstly, all commutation states are analyzed, simulated, and then verified by experiment. Then, the torque performance under different commutation states is compared. Finally, according to the comparison result, an optimized control strategy is recommended for the CWBLDC motor.

Key words： Brushless DC motor commutation method torque density torque ripple

Received: 29 July 2021

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TM351

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	Zhang Qinghu
	Jia Zhewu
	Wang Dong

Cite this article:

Zhang Qinghu,Jia Zhewu,Wang Dong. Hybrid Commutation Method of Circular Winding Brushless DC Motor[J]. Transactions of China Electrotechnical Society, 2022, 37(17): 4346-4354.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.211159 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I17/4346

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