永磁同步电机谐波电压与电流的耦合模型及前馈控制

doi:10.19595/j.cnki.1000-6753.tces.161956

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Abstract This paper introduced a harmonic voltage model of permanent magnet synchronous motor (PMSM) on multiple rotating synchronous coordinates, considering one couple of positive and negative sequence harmonic current simultaneously. The model revealed the coupling relationship between positive harmonic voltage and negative harmonic current. By adding reference harmonic current computing module and feedforward harmonic voltage computing module to the traditional vector control system, a novel harmonic current injection system was established. In that system, the PI current controller only needed to track the direct component gain, while the gain of harmonic component was guaranteed by the feedforward harmonic voltage. Finally, two kinds of PMSM were selected as experiment objects of harmonic current injection. The results of harmonic current response from traditional PI current controller and the proposed harmonic current injection system were compared, which represented that feedforward harmonic voltage can improve the injection effect of high frequency harmonic current. In addition, the corresponding torque signals were also compared and analyzed in time and frequency domains. It illustrated that the harmonic current can be injected more precisely with feedforward harmonic voltage, thereby the torque ripple of PMSM can be reduced effectively.

Key words： Permanent magnet synchronous motor multiple rotating synchronous coordinates harmonic voltage model harmonic current injection torque ripple reduction

Published: 10 October 2017

PACS:

TM351

Fund:国家自然科学基金面上项目（51575392）和国家科技支撑计划（2015BAG17B00、2015BAG03B00）资助

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	Articles by authors
	Zhong Zaimin
	Jiang Shang
	Kang Jinsong
	Chen Xueping
	Zhou Yingkun

Cite this article:

Zhong Zaimin,Jiang Shang,Kang Jinsong等. A Harmonic Voltage and Current Coupling Permanent Magnet Synchronous Motor Model and Feedforward Control[J]. Transactions of China Electrotechnical Society, 2017, 32(18): 131-142.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.161956 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I18/131

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