Position sensorless control of synchronous reluctance motor using high frequency current injection

Author

Kang, Seog-Joo ; Kim, Tang-Mok ; Sul, Seung-Ki

Author_Institution

Building Syst. Res. Lab., LG Ind. Syst. Co. Ltd., Incheon, South Korea

Volume

14

Issue

4

fYear

1999

fDate

12/1/1999 12:00:00 AM

Firstpage

1271

Lastpage

1275

Abstract

This paper presents a position sensorless control scheme of a synchronous reluctance motor using high-frequency current injection. The rotor has inherent rotor saliency and its angle is estimated from d and q stator current injection and the appropriate signal demodulation. This scheme gives robust and dynamic estimation of the rotor angle independent of the operating conditions including standstill, light and heavy loading. Experimental results of closed loop speed control of a 3.75 kW axially laminated synchronous reluctance motor are given to verify the proposed scheme

Keywords

closed loop systems; control system synthesis; machine testing; machine theory; machine vector control; parameter estimation; position control; reluctance motors; rotors; velocity control; 3.75 kW; axial lamination; closed loop speed control; dynamic estimation; high-frequency current injection; inherent rotor saliency; position sensorless control; robust estimation; signal demodulation; stator current injection; synchronous reluctance motor; Demodulation; Frequency; Magnetic confinement; Reluctance motors; Robustness; Rotors; Sensorless control; Stators; Synchronous motors; Voltage;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.815058

Filename

815058