Active Disturbance Rejection Control for Position Sensorless Permanent Magnet Synchronous Motor Drives Based on Cascade Extended State Observer
Zhu Lianghong1,2, Zhang Guoqiang1, Li Yuxin1, Wang Gaolin1, Xu Dianguo1
1. School of Electrical Engineering and Automation Harbin Institute of Technology Harbin 150001 China; 2. GD Midea AIR-Conditioning Equipment Co. Ltd Foshan 528311 China
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.
朱良红, 张国强, 李宇欣, 王高林, 徐殿国. 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[J]. 电工技术学报, 2022, 37(18): 4614-4624.
Zhu Lianghong, Zhang Guoqiang, Li Yuxin, Wang Gaolin, Xu Dianguo. Active Disturbance Rejection Control for Position Sensorless Permanent Magnet Synchronous Motor Drives Based on Cascade Extended State Observer. Transactions of China Electrotechnical Society, 2022, 37(18): 4614-4624.
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2022, Vol. 37 
