用于飞轮储能的单绕组磁悬浮飞轮电机径向力补偿方法

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Abstract The position of rotor and stator in switched reluctance motor is exchanged to obtain the single winding bearingless flywheel motor(SWBFM), which is more useful for flywheel energy storage. The suspension force and torque are produced by single windings and the rotor could direct drive the flywheel with less mechanical transmission. The accurate mathematical model of Maxwell stress tensor method obtained by finite element analysis and the correction factor is the basis to control motor stable and depends on the selection of integrating path. Considering the relationship between the angle and the radial force coefficient, and the difference of radial force coefficient with each tooth pole, radial force compensation methods of βdirection constraint and without βdirection constraint are present to ensure the SWBFM stable suspension under the condition of winding fault. The results show that the proposed compensation methods are feasible and have high precision.

Key words： Flywheel energy storage single winding bearingless flywheel motor Maxwell stress tensor method radial force compensation

Received: 10 August 2014 Published: 08 September 2015

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TM315

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	Articles by authors
	Yuan Ye
	Sun Yukun
	Huang Yonghong
	Yang kai

Cite this article:

Yuan Ye,Sun Yukun,Huang Yonghong等. Radial Force Compensation Method of Single Winding Bearingless Flywheel Motor Application to Flywheel Energy Storage[J]. Transactions of China Electrotechnical Society, 2015, 30(14): 177-183.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I14/177

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