一种高效率开关磁阻电机转矩脉动抑制方法

doi:10.19595/j.cnki.1000-6753.tces.190035

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Abstract The switched reluctance motor drive system (SRD) is widely used due to its comparative high reliability and strong fault tolerance, but the large torque ripple is the major concern associated with it. To address the issue, a high efficiency torque ripple suppression method for the switched reluctance motor (SRM) is proposed. Firstly, based on the inductance characteristic curve of the SRM, a simple turn-on angles election function is constructed, making the incoming phase of SRM track the torque reference while avoiding excessive phase current peaks. Then, the commutation zone is divided into two sub-intervals according to the torque-ampere-ratio of the outgoing phase and the incoming phase, and the phase of larger torque-ampere-ratio is preferentially selected to provide torque in the corresponding sub-intervals. The outgoing phase is turned off in advance at the end of the commutation to avoid a large phase current from entering the negative torque region, thereby achieving high efficiency torque ripple suppression. Finally, the effectiveness of the proposed control strategy is verified by the simulation and hardware-in-the-loop tests.

Key words： Switched reluctance motor (SRM) turn-on angle election direct instantaneous torque control (DITC) torque-ampere-ratio

Received: 16 January 2019 Published: 12 May 2020

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TM352

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	Articles by authors
	Qing Long
	Wang Huimin
	Ge Xinglai

Cite this article:

Qing Long,Wang Huimin,Ge Xinglai. A High Efficiency Torque Ripple Suppression Method for Switched Reluctance Motor[J]. Transactions of China Electrotechnical Society, 2020, 35(9): 1912-1920.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.190035 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I9/1912

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