Analysis of an adaptive observer for sensorless control of PMSM drives

Author

Piippo, Antti ; Hinkkanen, Marko ; Luomi, Jorma

Author_Institution

Power Electron. Lab., Helsinki Univ. of Technol., Espoo, Finland

fYear

2005

fDate

6-10 Nov. 2005

Abstract

The paper deals with a speed and position estimation method for the sensorless control of permanent magnet synchronous motors. The method is based on a speed-adaptive flux observer augmented with a high-frequency signal injection method at low speeds. The dynamics of the adaptive observer are analyzed by linearizing both the motor model and the observer, and the observer gain is selected to give improved damping and noise suppression. The experimental results are in agreement with the results of the analysis.

Keywords

adaptive control; angular velocity control; damping; interference suppression; linearisation techniques; machine control; observers; permanent magnet motors; synchronous motor drives; PMSM drive; damping; high-frequency signal injection method; linearization; noise suppression; permanent magnet synchronous motor; position estimation; sensorless control; speed estimation; speed-adaptive flux observer; Adaptive control; Magnetic analysis; Permanent magnet motors; Permanent magnets; Programmable control; Rotors; Sensorless control; Stators; Synchronous motors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, 2005. IECON 2005. 31st Annual Conference of IEEE

Print_ISBN

0-7803-9252-3

Type

conf

DOI

10.1109/IECON.2005.1569122

Filename

1569122