无传感器下永磁同步牵引电机的带速重投研究

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Abstract The special problem of speed sensorless control applied in traction motor is to restart the motor after coasting process when rotor position and speed is not known. The short current vector method is adopted in this paper during coasting, while the modified stator flux method is used after PMSM restarting. During coasting, the short-circuit current is produced by back-EMF when zero voltage vector is used by inverter. The rotor position and speed could be estimated by two times short-circuit current vector. Both the simulation and experimental results show that the method has high estimation accuracy and can restart PMSM stably.

Key words： keywords：PMSM sensorless control short current vector stator flux method

Received: 10 September 2012 Published: 12 December 2013

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TM351

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	Articles by authors
	Yuan Qian
	Yang Zhongping
	Lin Fei
	Sun Hu

Cite this article:

Yuan Qian,Yang Zhongping,Lin Fei等. Sensorless Restarting Method of Permanent Magnet Synchronous Traction Motor[J]. Transactions of China Electrotechnical Society, 2013, 28(1增): 377-382.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I1增/377

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