PMSM驱动系统位置传感器故障在线诊断与自适应容错控制

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Abstract For the permanent magnet synchronous motor (PMSM) drive system in electric vehicle using resolver as position sensor,researches are focused on the online fault diagnosis and adaptive fault-tolerant control of amplitude umbalance and quadrature imperfect faults in this paper.First,the position deviation and the fault features of d-and q-axis stator currents caused by amplitude umbalance and quadrature imperfect faults are analyzed.Then,by fault mode location,identification and fault degree evaluation,the effective extraction and separation of fault features in q-axis stator current are presented to implement the online fault diagnosis,moreover,the effect of q-axis current ripple caused by inverter dead-time effects on the diagnosis accuracy of position sensor fault is skillfully avoided.And then,The adaptive fault-tolerant control is achieved by using the obtained position deviation.At last,the reasonable and effectiveness of proposed online fault diagnosis and adaptive fault-tolerant control strategy are validated through system modeling,simulation researches and experimental testing.

Key words： Permanent magnet synchronous motor drive system position sensor fault dead-time effects online fault diagnosis adaptive fault-tolerant control

Received: 19 August 2016 Published: 23 March 2017

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TM315

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	Li Hongmei
	Yao Hongyang
	Wang Ping

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Li Hongmei,Yao Hongyang,Wang Ping. Position Sensor Online Fault Diagnosis and Adaptive Fault-Tolerant Control of PMSM Drive System[J]. Transactions of China Electrotechnical Society, 2016, 31(增刊2): 228-235.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I增刊2/228

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