Sensorless control of synchronous reluctance motors based on an extended EMF model and initial position estimation

Author

Ichikawa, Shinji ; Tomita, Mutuwo ; Doki, Shinji ; Okuma, Shigeru

Author_Institution

Dept. of Electr. Eng., Nagoya Univ., Japan

Volume

3

fYear

2003

fDate

2-6 Nov. 2003

Firstpage

2150

Abstract

In this paper, we realize a sensorless control of synchronous reluctance motors based on a proposed extended EMF model. This proposed model can be used for all synchronous motors, so the estimation method applied for permanent magnet synchronous motors can be applied for synchronous reluctance motors without modification. At standstill state, since an amplitude of the extended EMF becomes zero, it is difficult to realize position estimation based on the extended EMF. In order to solve this problem, a system identification method for sensorless control is combined with it. Sensorless control of synchronous reluctance motors can be realized from standstill state to high-speed ranges by a combination of two methods.

Keywords

electric potential; machine control; parameter estimation; permanent magnet motors; reluctance motors; electromotive force; extended EMF model; initial position estimation; motor control; sensorless control; standstill state; synchronous reluctance motors; system identification method; Angular velocity; Electronic mail; Inductance; Reluctance motors; Rotors; Sensorless control; State estimation; Synchronous motors; System identification; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE

Print_ISBN

0-7803-7906-3

Type

conf

DOI

10.1109/IECON.2003.1280576

Filename

1280576