牵引电机矢量控制转子磁场准确定向实时校正策略

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Abstract Accurate flux orientation is the key for induction motor indirect field oriented control technology to achieve independent and decoupling control of torque and excitation, accurate flux orientation is sensitive to motor rotor time constant. In this paper, motor excitation and stator voltage control problem affected by misalignment of rotor flux orientation are derived and discussed; the improved rotor flux observer with amplitude and phase compensation based on voltage model is analyzed. In this paper, the other factors which affect accurate flux orientation are attributed to the rotor time constant, and then rotor flux accurate orientation real-time correction strategy based on q-axis flux error is proposed. Simulation and experimental results verify that theoretical analysis is correct and accurate field orientation correction strategy is effective.

Key words： Magnetic field accurate orientation rotor time constant feed-forward decouple improved flux observer q-axis flux error

Received: 02 December 2010 Published: 07 March 2014

PACS:	TM922.72
	TM921.5

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	Articles by authors
	Sun Danan
	Liu Zhigang
	Diao Lijun
	Lin Wenli

Cite this article:

Sun Danan,Liu Zhigang,Diao Lijun等. Accurate Rotor Flux Orientation Real-Time Correction Strategy for Vector Control of Traction Motors[J]. Transactions of China Electrotechnical Society, 2011, 26(9): 116-123.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I9/116

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