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

被引：0
|
作者：
Li, Hongguo [1 ]
Ke, Dongliang [1 ]
Zu, Ran [1 ]
Tao, Peng [1 ]
Wang, Fengxiang [1 ]
机构：
[1] Chinese Acad Sci, Haixi Inst, Quanzhou Inst Equipment Mfg, Quanzhou, Peoples R China
来源：
2018 1ST IEEE STUDENT CONFERENCE ON ELECTRIC MACHINES AND SYSTEMS (IEEE SCEMS) | 2018年
关键词：
Sliding mode observer; permanent magnet synchronous motor (PMSM); dynamic boundary layer; wide speed range;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper proposes a sensorless speed control method for permanent magnet synchronous motors (PMSMs) based on an improved sensorless sliding mode observer vector control algorithm with dynamic boundary layer, suitable for applications in medium-high speed. Compared with conventional SMO, the signum function is replaced by a saturation function, to reduce the chattering problem. Also, in order to compensate for the position error caused by the low-pass filter, this control method allows the boundary layer to change with speed, making the rotor speed and position estimation more accurate in a wide speed range. The validity of the proposed sensorless velocity control method has been demonstrated with real experiments.
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页数：6
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