Transactions of China Electrotechnical Society  2021, Vol. 36 Issue (4): 801-809    DOI: 10.19595/j.cnki.1000-6753.tces.191818
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Initial Position Identification of PMSM with Filterless High Frequency Pulse Signal Injection Method
Yu Anbo1, Liu Li2, Kan Zhizhong1, Zhang Chunjiang1
1. Key Laboratory of Power Electronics for Energy Conservation and Drive Control of Hebei Province Yanshan University Qinhuangdao 066004 China;
2. Shougang Zhixin Qian'an Electromagnetic Material Co. Ltd Tangshan 064400 China

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Abstract  A method is proposed to identify the rotor initial angle using high-frequency pulse signal injection into a permanent magnet synchronous motor (PMSM). This method, briefly called filterless high frequency pulse signal injection, is an improvement on the traditional identification of the rotor initial angle. Firstly, the function of rotor initial angle error is calculated from stator current high-frequency response instead of using a low-pass filter, then, the initial rotor angle is obtained through a phase-locked loop. The method of identifying the rotor polarity is also modified using the saturation effect of the magnetic circuit, which improves the polarity identification of the rotor magnet. Finally, the proposed scheme has been verified by experiments on an 16kW interior permanent magnet synchronous motor platform.
Key wordsPermanent magnet synchronous motor      initial position identification      high frequency pulse signal      filterless     
Received: 30 December 2019     
PACS: TM351  
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Yu Anbo
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Yu Anbo,Liu Li,Kan Zhizhong等. Initial Position Identification of PMSM with Filterless High Frequency Pulse Signal Injection Method[J]. Transactions of China Electrotechnical Society, 2021, 36(4): 801-809.
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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191818     OR     https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I4/801
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