Robust observer with higher-order sliding mode for sensorless speed estimation of a PMSM

Author

Kommuri, Suneel K. ; Veluvolu, Kalyana C. ; Defoort, M.

Author_Institution

Sch. of Electron. Eng., Kyungpook Nat. Univ., Daegu, South Korea

fYear

2013

fDate

17-19 July 2013

Firstpage

4598

Lastpage

4603

Abstract

This paper addresses the problem of sensorless speed estimation for the permanent magnet synchronous motor (PMSM). A higher-order sliding mode (HSM) observer is developed to provide estimation of back electro motive forces (EMFs) that are treated as unknown inputs without the use of lowpass filter. A finite-time smooth estimation is obtained and the chattering phenomenon is eliminated. An accurate speed estimate of PMSM can be algebraically computed with the estimated back EMFs. Experimental results show the effectiveness of the proposed method.

Keywords

angular velocity control; observers; permanent magnet motors; sensorless machine control; synchronous motors; variable structure systems; EMF; HSM observer; PMSM; back electromotive force estimation; chattering phenomenon; finite-time smooth estimation; higher-order sliding mode; permanent magnet synchronous motor; robust observer; sensorless speed estimation; Noise measurement; Observers; Permanent magnet motors; Robustness; Rotors; Stators; higher-order sliding mode (HSM); permanent magnet synchronous motor (PMSM); sensorless control; speed estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 2013 European

Conference_Location

Zurich

Type

conf

Filename

6669214