New Sliding-Mode Observer for Position Sensorless Control of Permanent-Magnet Synchronous Motor

Author

Qiao, Zhaowei ; Shi, Tingna ; Wang, Yindong ; Yan, Yan ; Xia, Changliang ; He, Xiangning

Author_Institution

Sch. of Electr. Eng. & Autom., Tianjin Univ., Tianjin, China

Volume

60

Issue

2

fYear

2013

Firstpage

710

Lastpage

719

Abstract

This paper proposes a novel sliding-mode observer (SMO) to achieve the sensorless control of permanent-magnet synchronous motor (PMSM). An observer is built according to the back electromotive force (EMF) model after the back EMF equivalent signal is obtained. In this way, not only are low-pass filter and phase compensation module eliminated, but also estimation accuracy is improved. Numerical simulations and experiments with an 11-kW low-speed PMSM are carried out. The results demonstrate that the novel SMO can effectively estimate rotor position and speed and achieve good static and dynamic performance.

Keywords

electric potential; numerical analysis; observers; permanent magnet motors; position control; sensorless machine control; synchronous motors; variable structure systems; SMO; back EMF equivalent signal; back electromotive force model; dynamic performance; low-speed PMSM; numerical simulations; permanent-magnet synchronous motor; position sensorless control; power 11 kW; rotor position estimation; rotor speed estimation; sliding-mode observer; static performance; Equations; Low pass filters; Mathematical model; Observers; Rotors; Sensorless control; Back electromotive force (EMF); permanent-magnet synchronous motor (PMSM); sensorless; sliding-mode observer (SMO);

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2012.2206359

Filename

6226863