基于准比例谐振级联PI的双三相永磁同步电机谐波电流抑制策略

doi:10.19595/j.cnki.1000-6753.tces.181128

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Abstract

Because of some factors such as air-gap magnetic field distortion and nonlinear characteristics of inverter, the stator winding of a dual three-phase permanent magnet synchronous motor (PMSM) usually contains a large amount of harmonic current. The harmonic current will increase system losses and cause torque ripple, thereby seriously affecting the performance of the drive system. Therefore, this paper proposes a harmonics suppression strategy of dual three-phase PMSM based on the quasi proportional resonant (QPR) cascading PI. The proposed strategy utilizes the vector control of dual d-q coordinate system to suppress the harmonic current by attaching four QPR cascading PI current controllers to d₁-axis, d₂-axis, q₁-axis and q₂-axis, respectively. The error of harmonic current is significantly amplified by the QPR controller, and then the amplified error is adjusted by the PI controller with zero reference input, which improves the suppression of harmonic current effectively. The experimental results obtained from a dual three-phase PMSM show that the proposed strategy is feasible and effective.

Key words： Dual three-phase permanent magnet synchronous motor harmonic current quasi- proportional resonant regulator (QPR) QPR cascading PI dual d-q coordinate system

Received: 29 June 2018 Published: 29 December 2018

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TM351

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	Mai Zhiqin
	Xiao Fei
	Liu Jilong
	Zhang Weiwei
	Lian Chuanqiang

Cite this article:

Mai Zhiqin,Xiao Fei,Liu Jilong等. Harmonic Current Suppression Strategy of Dual Three-Phase Permanent Magnet Synchronous Motor Based on Quasi Proportional Resonant Cascading PI[J]. Transactions of China Electrotechnical Society, 2018, 33(24): 5751-5759.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181128 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I24/5751

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