基于单Q轴电流调节器的永磁同步电机电流轨迹控制

doi:10.19595/j.cnki.1000-6753.tces.181119

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Abstract

Considering the problem that current locus cannot be planned in voltage angle control methods, the single q-axis current regulator - variable voltage angle control method is proposed. Firstly, the relationship of different limit curves and the movements of the current locus were analyzed based on the fundamental electromagnetic relationship of the dq axis current plane. The optimal current loci were designed for the corresponding torque characteristic curves. Secondly, the unique regulated variable was analyzed with the limitation of the maximum voltage amplitude; the single q-axis current regulator was proposed to implement the current locus control in the flux-weakening region; the stability was also proved. Finally, the simulation and experiment platforms based on a 3kW permanent magnet synchronous motor were set up. Compared with traditional flux-weakening control methods, the results show that the proposed method can complete smooth transition of flux-weakening control, simplify the motoring and generating algorithm, and ensure system stability, which achieves good control of current response and current locus.

Key words： Permanent magnet synchronous motor (PMSM) flux-weakening control single current regulator current locus control

Received: 30 June 2018 Published: 29 December 2018

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TM351

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	Articles by authors
	Zhang Zisui
	Wang Chenchen
	You Xiaojie
	Zhou Minglei
	Wang Bin

Cite this article:

Zhang Zisui,Wang Chenchen,You Xiaojie等. Current Locus Control of Permanent Magnet Synchronous Motor Based on Single Q-Axis Current Regulator Flux-Weakening Method[J]. Transactions of China Electrotechnical Society, 2018, 33(24): 5779-5788.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181119 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I24/5779

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