Current Deviation Decoupling Control with a Sliding Mode Observer for Permanent Magnet Synchronous Motor

被引：0
|
作者：
Liu Y. [1 ]
Wang X. [1 ]
Zhou K. [1 ]
机构：
[1] Ministry of Education Engineering Research Center of Automotive Electronics Drive Control and System Integration, Harbin University of Science and Technology, Harbin
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2020年 / 35卷 / 08期
关键词：
Current deviation decoupling control (CDDC); Current sliding mode observer (CSMO); Permanent magnet synchronous motor (PMSM); Voltage feed-forward decoupling control (VFDC);
D O I：
10.19595/j.cnki.1000-6753.tces.181585
中图分类号：
学科分类号：
摘要：
In this paper, a permanent magnet synchronous motor current controller based on a sliding mode observer is proposed for improving the robustness to parameter perturbations and load disturbances. By calculating the current deviation decoupling control coupling term, it is found that the deviation decoupling coupling term is simple compared with the conventional voltage feed-forward decoupling. It solves the unsatisfactory decoupling effect of the conventional voltage feed-forward decoupling control. Through the tracking characteristics of the current sliding mode observer, the estimated value of the stator current is taken as a state variable and fed back to the system input terminal to compensate the current error value. This method not only achieves better compensation control for the current loop, but also completely decouples the d and q axis currents, ensuring the dynamic response speed of the system and improving the immunity of the system. The proposed controller is found to be more effective than the conventional controller through simulations and experiments. © 2020, Electrical Technology Press Co. Ltd. All right reserved.
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页码：1642 / 1652
页数：10
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