基于级联扩张观测器的永磁电机无传感器自抗扰控制策略

doi:10.19595/j.cnki.1000-6753.tces.210615

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Abstract In order to solve the problem that the installation of the position sensor decreases reliability and impairs anti-disturbance ability in permanent magnet synchronous motor (PMSM) drives, the high frequency pulse voltage signal injection method is adopted to realize PMSM sensorless drives at zero and low speed. When the traditional control method is used in PMSM sensorless drives, the stiffness of the drive system will be decreased. Therefore, this paper proposes an improved linear active disturbance rejection control (LADRC) strategy. A cascade of extended state observer (ESO) is used to estimate the total disturbance imposed on the system. The estimation error for the slope load disturbance can be eliminated, which improves the estimation precision against disturbance and enhances the robustness of the system. Finally, the feasibility of the proposed strategy is verified by the experimental results on a 7.5kW PMSM platform.

Key words： Permanent magnet synchronous motor sensorless active disturbance rejection control cascade extended state observer

Received: 05 May 2021

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TM346

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	Articles by authors
	Zhu Lianghong
	Zhang Guoqiang
	Li Yuxin
	Wang Gaolin
	Xu Dianguo

Cite this article:

Zhu Lianghong,Zhang Guoqiang,Li Yuxin等. Active Disturbance Rejection Control for Position Sensorless Permanent Magnet Synchronous Motor Drives Based on Cascade Extended State Observer[J]. Transactions of China Electrotechnical Society, 2022, 37(18): 4614-4624.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.210615 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I18/4614

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