基于宽频带同步基频提取滤波器的永磁同步电机转子位置与转速估计

doi:10.19595/j.cnki.1000-6753.tces.200913

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Abstract The non-ideal factors, such as the inherent chattering of sliding mode observer (SMO), the delay of control algorithm, and the dead-time effect, and so on, will produce harmonic errors of position estimation, which become the main factors affecting the accuracy of rotor position estimation. To improve the performance of the surface permanent magnet synchronous motor (SPMSM), a wideband synchronous fundamental-frequency extraction filter is proposed to extract the fundamental wave signal of the estimated back EMF. Then, a novel signal processing method combing wideband synchronous fundamental frequency extraction filter-frequency locked loop (WSFEF-FLL) is applied, and the application of FLL ensures the tracking frequency of the WSFEF adaptive. Using the WSFEF- FLL-PLL in the SMO based position estimator, the harmonics of the back EMF can be effectively eliminated, which improves the accuracy and dynamic performance of rotor position estimation. Simulation and experiment verify the feasibility and effectiveness of the proposed method.

Key words： High-speed surface permanent magnet synchronous motor rotor position and speed estimation wideband synchronous fundamental-frequency extraction filter frequency-locked loop sliding mode observer

Received: 24 July 2020

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TM341

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	Articles by authors
	Zhang Chunjuan
	Wang Huizhen
	Liu Weifeng
	Fu Zirui

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Zhang Chunjuan,Wang Huizhen,Liu Weifeng等. Rotor Position and Speed Estimation of Permanent Magnet Synchronous Motor Based on Wideband Synchronous Fundamental- Frequency Extraction Filter[J]. Transactions of China Electrotechnical Society, 2022, 37(4): 882-891.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.200913 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I4/882

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