Sensorless vector control of brushless DC motors using disturbance observer

Author

Senjyu, Tomonobu ; Tomita, Mutuwo ; Doki, Shinji ; Okuma, Shigeru

Author_Institution

Ryukyus Univ., Okinawa, Japan

Volume

2

fYear

1995

fDate

18-22 Jun 1995

Firstpage

772

Abstract

A sensorless motor drive system using disturbance observers for brushless DC motors is proposed in this paper. There are three observers in the control system, they are a disturbance voltage observer, a speed observer, and a disturbance torque observer. These observers are used not only for position and speed estimation in the sensorless vector control, but also for a current controller. The rotor position and speed estimator are robust for parameter variations of the EMF constant. The validity of this sensorless vector control of brushless DC motor is confirmed with computer simulations

Keywords

brushless DC motors; control system analysis computing; control system synthesis; digital simulation; electric current control; electric machine analysis computing; machine control; machine theory; motor drives; observers; parameter estimation; position control; velocity control; EMF constant; brushless DC motors; computer simulation; control design; current controller; disturbance torque observer; disturbance voltage observer; parameter variations; position estimation; robustness; rotors; sensorless motor drive; speed estimation; speed observer; vector control; Brushless DC motors; Computer simulation; Control systems; Machine vector control; Motor drives; Robustness; Rotors; Sensorless control; Torque control; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-2730-6

Type

conf

DOI

10.1109/PESC.1995.474905

Filename

474905