Improved sliding mode observer based sensorless control for PMSM

被引：14
|
作者：
Kang, Weixin [1 ]
Li, Hong [1 ]
机构：
[1] Beihang Univ, Sch Instrument Sci & Optoelect Engn, Beijing 100083, Peoples R China
来源：
IEICE ELECTRONICS EXPRESS | 2017年 / 14卷 / 24期
基金：
中国国家自然科学基金;
关键词：
sensorless control; sliding mode observer; back-EMF observer; position detection; MAGNET SYNCHRONOUS MOTOR; ROTOR POSITION; DRIVE;
D O I：
10.1587/elex.14.20170934
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：
In this paper, an improved sliding mode observer (SMO) is proposed to guarantee the position detection accuracy of the permanent magnet synchronous motor (PMSM) developed for magnetic suspension molecular pumps (MSMP). Since the traditional SMO based sensorless scheme has chattering problems, and considering the existence of harmonics component, the estimated back-EMF waves should be further processed. For this reason, a novel back-EMF observer is proposed to extract the fundamental wave of the estimated back-EMF signals. Experimental results show the effectiveness of the proposed sensorless control of PMSM.
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页数：6
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