Sensorless Control of Permanent Magnet Synchronous Motor Based on the Improved Sliding Mode Observer

被引：0
|
作者：
Hua Z. [1 ]
Dou M. [1 ]
Zhao D. [1 ]
Yan L. [1 ]
Ji J. [2 ]
Yang J. [1 ]
机构：
[1] School of Automation, Northwestern Polytechnical University, Xi'an
[2] School of Automation and Information Engineering, Xi'an University of Technology, Xi'an
来源：
Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University | 2018年 / 36卷 / 04期
关键词：
Chattering; Design of experiments; Permanent magnet synchronous motor; Sensorless control; Sliding mode observer;
D O I：
10.1051/jnwpu/20183640754
中图分类号：
学科分类号：
摘要：
Sliding mode observer (SMO) which has a strong robustness is used in the sensorless control system of permanent magnet synchronous motor (PMSM). The method is usually used to estimate the rotor position although it has the chattering problem. According to the causes of the chattering in traditional SMO, the method of improved sliding mode observer (ISMO) is proposed in this paper. Sign function is replaced by the saturation function to suppress the chattering problem, and the speed of PMSM is estimate when combined with field oriented control (FOC) method. A hardware platform of 2.7 kW, 10 000 r/min PMSM is built to verify the control effectiveness of ISMO. Simulation analysis and experimental result show that ISMO can estimate the rotor speed accuracy and reduce the chatting at the same time. © 2018, Editorial Board of Journal of Northwestern Polytechnical University. All right reserved.
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页码：754 / 760
页数：6
相关论文
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