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.

引用

页数：6

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