无轴承无刷直流电机悬浮控制特性优化分析

doi:10.19595/j.cnki.1000-6753.tces.181530

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Abstract Aiming at problems of suspension force ripple in the suspension windings control methods of bearingless brushless direct current motors(BBOCM), eight kinds of conduction rules under different boundary conditions are deduced based on the principle of determining the conduction phase of suspension windings. Then, suspension force ripples of these rules are compared and analyzed with the FEA software to obtain the optimal suspension conduction rule. Finally, the influence of torque winding loading on suspension force ripple is analyzed by using air gap magnetic density waveforms. And conduction intervals of suspension windings are further optimized, which provides theoretical support for suspension optimization control methods of bearingless brushless DC motors.

Key words： Bearingless motor finite element analysis suspension force ripple brushless DC motor

Received: 14 September 2018 Published: 11 December 2019

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TM351

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	Articles by authors
	Qiu Zhijian
	Ma Dongxu
	Wei Kangni

Cite this article:

Qiu Zhijian,Ma Dongxu,Wei Kangni. Optimization Analysis on Suspension Control Characteristics of a Bearingless Brushless DC Motor[J]. Transactions of China Electrotechnical Society, 2019, 34(23): 4939-4947.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181530 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I23/4939

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