基于反电势电流的电励磁双凸极电机驱动电路单管开路故障诊断研究

doi:10.19595/j.cnki.1000-6753.tces.191594

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Abstract Fault diagnosis is the key technology of the control system of the double salient motor with high reliability. In this paper, the single power switch open circuit fault diagnosis technology of power converter is studied. The open circuit fault can be divided into the open circuit fault caused by the loss of drive signal and the open circuit fault caused by the power switch damage. The characteristics and damages of two fault types are described, and their effects on the back electromotive force current under different control modes are analyzed. The single power switch open circuit fault diagnosis method based on the back electromotive force current is proposed to diagnose two fault types, so that when the open circuit fault caused by the damage of the power switch occurs, the power switch of the same bridge arm of the fault switch cannot to be chopped, avoiding the extension of fault range. Finally, the effectiveness of the proposed method is verified by experiment results.

Key words： Back electromotive force (BEMF) current open circuit fault diagnosis doubly salient electromagnetic motor (DSEM)

Received: 22 November 2019

PACS:

TM352

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	Articles by authors
	Xia Yiwen
	Zhang Zhuoran
	Zhang Jian
	Chen Xu

Cite this article:

Xia Yiwen,Zhang Zhuoran,Zhang Jian等. Research on Single Power Switch Open Circuit Fault Diagnosis of Doubly Salient Eletromagnetic Motor Drive Circuit Based on the Back Electromotive Force Current[J]. Transactions of China Electrotechnical Society, 2020, 35(23): 4888-4897.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191594 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I23/4888

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