An extended electromotive force model for sensorless control of interior permanent-maghet synchronous motors

被引:532
作者
Chen, ZQ [1 ]
Tomita, M
Doki, S
Okuma, S
机构
[1] Nagoya Univ, Dept Elect Engn, Okuma Lab, Nagoya, Aichi 4648603, Japan
[2] Gifu Natl Coll Technol, Dept Elect & Comp Engn, Gifu 5010495, Japan
[3] Mie Univ, Dept Elect Engn, Tsu, Mie 5148507, Japan
关键词
disturbance observer; electromotive force (EMF); permanent-magnet synchronous motor (PMSM); sensorless control;
D O I
10.1109/TIE.2003.809391
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
During the last decade, many sensorless control methods have been proposed for surface permanent-magnet synchronous motors (SPMSMs) based on estimation of electromotive force (EMF) in which the motor's position information is contained. However, these methods cannot be applied to interior PMSMs (IPMSMs) directly, because the position information is contained in not only the EMF, but also the inductance of stators. In this paper, a new mathematical model for IPMSMs is proposed and an extended EMF is defined, which includes both position information from the EMF and the stator inductance. By using the newly proposed model, sensorless controls proposed for SPMSMs can easily be applied to IPMSMs. As an example, a disturbance observer is studied and the experimental results show that the proposed method on the,proposed model is very effective.
引用
收藏
页码:288 / 295
页数:8
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