一种单绕组无轴承开关磁阻电机绕组开路故障容错控制策略

doi:10.19595/j.cnki.1000-6753.tces.170946

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Abstract On account of the double-salient-pole structure of bearingless switched reluctance motor (BSRM), the torque ripple is one of the most important factors that restrict its operation performance and application, which can be effectively suppressed when using the direct instantaneous torque control and direct force control (DITC&DFC) method. Based on this method, the open-circuit fault of a 12/8 single-winding BSRM was studied and a fault-tolerant control method was proposed to compensate the absent levitation force. As a result, the stable levitation under the open-circuit fault-tolerant operation was achieved. Firstly, the principle of levitation and DITC&DFC were demonstrated. To compensate the loss of levitation force under open-circuit fault, the voltage symbol selection table was reconstructed. Finally, the simulations of Matlab/Simulink and experiments of prototype motor were completed. It is verified that this control strategy can achieve a good control performance for fault-tolerant operation of single-winding BSRM.

Key words： Bearingless switched reluctance motor direct instantaneous torque control direct force control fault-tolerant operation radial force compensation

Received: 03 July 2017 Published: 14 August 2018

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TN352

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	Zhang Lei
	Cao Xin
	Deng Zhiquan
	Zhou Jingxing

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Zhang Lei,Cao Xin,Deng Zhiquan等. A Fault-Tolerant Control Strategy for Open Circuit in Single-Winding Bearingless Switched Reluctance Motor[J]. Transactions of China Electrotechnical Society, 2018, 33(15): 3564-3571.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170946 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I15/3564

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