开绕组永磁复合轮毂电机驱动系统容错控制

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Abstract For single switch fault on one phase in the open-winding permanent magnet compact in-wheel(PMCW) motor drive system, a new SVPWM fault tolerant control strategy is proposed under 60°coordinate, in which the dual three-phase four-switch inverter is adopted. The voltage analytical model for fault diagnosis is applied in this strategy, and the switch fault is simulated by using bridge arm redundancy switch integrated online. Based on vector decomposition criteria, in a modulation period, one inverter is clamped at the same redundant switch status in triangle vertices, and voltage vector synthesis is performed in another inverter. Two inverters alternately run in clamp and vector synthesis. With no additional devices, the open-winding PMCW motor drive system fault-tolerant operation is achieved, and power balance between the dual inverter is also realized. Simulation and experimental verification of the fault-tolerant control strategy shows that the open-winding PMCW motor drive system can smoothly switch from fault state to fault tolerant operation.

Key words： Open-winding 60° coordinate dual three-phase four-switch single switch fault fault tolerant control

Received: 20 August 2014 Published: 14 April 2015

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TM351

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	Fan Ying
	Zhang Xiangyang
	Wei Mengsa
	Zhu Weixia
	Cheng Ming

Cite this article:

Fan Ying,Zhang Xiangyang,Wei Mengsa等. Fault-Tolerant Control for Open-Winding Permanent Magnet Compact In-Wheel Motor Drive System[J]. Transactions of China Electrotechnical Society, 2015, 30(2): 98-105.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2015/V30/I2/98

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