Sensorless filed oriented control of permanent magnet synchronous motor based on extend sliding mode observer

被引：0
|
作者：
Shen Y.-P. [1 ,2 ]
Liu A.-K. [1 ]
Cui G.-Z. [1 ,2 ]
Yang X.-L. [1 ]
Zheng Z.-F. [1 ]
机构：
[1] Department of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou
[2] Henan Key Lab of Information based Electrical Appliances, Zhengzhou
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2020年 / 24卷 / 08期
关键词：
Extend sliding mode observer; Permanent magnet synchronous motor; Phase locked loop; Rotor position estimation; Saturation function; Sensorless control;
D O I：
10.15938/j.emc.2020.08.007
中图分类号：
学科分类号：
摘要：
In the traditional sliding mode observer based sensorless field oriented control scheme for permanent magnet synchronous motor (PMSM), the observed back-electromotive force (EMF) exists chattering problem, and the observed rotor position is impressionable to rotational speed. Focused on these problems, a sensorless control scheme based on extended sliding mode observer is proposed in this paper. Through feeding back the estimated back-EMF to the stator current observer, and replacing the traditional switching function by saturation function, the chattering problem was improved effectively. Furthermore, the observation accuracy and anti-jamming ability was further improved by introducing the rotated influence immune phase-locked loop. Finally, compared with the traditional sliding mode observer, the experimental results based on a 2.9 kW PMSM show that the proposed scheme is immune to the back-EMF chattering, and has better dynamic performance and observation accuracy. © 2020, Harbin University of Science and Technology Publication. All right reserved.
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页码：51 / 57and66
页数：5715
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