基于方波电压信号注入的表贴式永磁同步电机饱和凸极性响应分析及转子位置估计

doi:10.19595/j.cnki.1000-6753.tces.161279

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Abstract This paper proposed a position sensorless control technique for surface-mounted permanent magnet synchronous motor (SPMSM), based on square-wave voltage injection. The peak envelopes of response currents in the αβ reference frame can be extracted through injecting persistent square-wave voltage into the stator windings in different angles when the rotor is locked, and the sinusoidal degree of these envelopes was used to reflect the saturation saliency response. A simple signal processing method was designed for traditional square-wave voltage injection method, which avoids the use of filters for extracting fundamental current and high frequency response current. Hardware-in-the-loop simulation system based on RTLAB for SPMSM was constructed. The simulation and experimental results show that the proposed method can eliminate the time delay problem caused by filters and improve the position estimation precision, which can be effectively applied in low switching frequency situations.

Key words： Surface-mounted permanent magnet synchronous motor square-wave voltage signal injection saturation saliency response rotor position estimation

Received: 12 August 2016 Published: 30 August 2017

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TM341

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	Zhang Hang
	Liu Weiguo
	Peng Jichang
	Zhang Yiwen

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Zhang Hang,Liu Weiguo,Peng Jichang等. Saturation Saliency Response Analysis and Rotor Position Estimation Based on Square-Wave Voltage Signal Injection for Surface-Mounted Permanent Magnet Synchronous Motor[J]. Transactions of China Electrotechnical Society, 2017, 32(16): 106-114.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.161279 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I16/106

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