环形绕组无刷直流电机的换向过程分析及建模

doi:10.19595/j.cnki.1000-6753.tces.190220

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Abstract The circular winding brushless DC motor (CWBLDC) is a brushless DC motor, but a multiphase winding of the motor is connected in a unique polygon or circular fashion. The CWBLDC motor has higher torque density due to larger width of electromotive force (EMF) trapezoidal wave. Combined with well-designed fractional-slot winding, the motor can dramatically reduce the commutation torque ripple, which is suitable for electric propulsion systems of high power rating ships despite more power semiconductor devices required. Different from the conventional three-phase BLDC motor, the circuit topologies transform with the rotor rotation. Transformation period of topologies reduces the modeling complexity. Field-circuit couple simulations and experimental results verify the model. The model is helpful to understand the operation principle of CWBLDC motor. It can quickly analyze the steady-state performance, which is suitable for parameters determination in CWBLDC motor design.

Key words： Brushless DC motor multiphase circular winding fractional-slot winding load commutation analytical modeling topology periodic change

Received: 05 March 2019 Published: 24 April 2020

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TM351

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	Lin Huangda
	Cheng Siwei
	Wang Dong
	Jia Zhewu
	Zhang Qinghu

Cite this article:

Lin Huangda,Cheng Siwei,Wang Dong等. Analytical Modeling of the Circular Winding Brushless DC Motor under Load Commutation[J]. Transactions of China Electrotechnical Society, 2020, 35(8): 1603-1612.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.190220 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I8/1603

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