New adaptive sliding observers for position- and velocity-sensorless controls of brushless DC motors

Author

Chen, Zhiqian ; Tomita, Mutuwo ; Doki, Shinji ; Okuma, Shigeru

Author_Institution

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

Volume

47

Issue

3

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

582

Lastpage

591

Abstract

A new adaptive sliding observer is proposed for position- and velocity-sensorless controls of a cylindrical brushless DC motor. Stability of the proposed observer is guaranteed easily, because it is based on a linear model of the motor. Sliding mode is applied for the current estimation. Under the sliding mode, the order of the observer´s error equation is reduced. This makes the stability analysis easier, so that robust position and velocity estimations might be achieved by the pole assignment. Experimental results show that the proposed method is very effective

Keywords

adaptive control; angular velocity control; brushless DC motors; machine control; observers; pole assignment; position control; stability; variable structure systems; adaptive sliding observers; brushless DC motors; current estimation; cylindrical brushless DC motor; motor linear model; observer error equation; observer stability; pole assignment; position-sensorless controls; robust position estimation; robust velocity estimation; stability analysis; velocity-sensorless controls; AC motors; Adaptive control; Brushless DC motors; Equations; Estimation error; Programmable control; Sliding mode control; Stability; Stress control; Velocity control;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.847899

Filename

847899