Adaptive speed identification scheme for vector controlled speed sensor-less inverter-induction motor drive

Author

Yang, Geng ; Chin, Tung-Hai

Author_Institution

Fac. of Sci. & Technol., Sophia Univ., Tokyo, Japan

fYear

1991

fDate

Sept. 28 1991-Oct. 4 1991

Firstpage

404

Abstract

A model reference adaptive control system is described for a speed sensorless control of the vector controlled inverter-fed induction motor drive. The rotor speed is estimated with a full order adaptive observer and is used as the feedback signal for the vector control and the speed control. In order to estimate the speed accurately at low speeds, the motor stator resistance is also identified at the same time to correct the mismatched resistance value used in the observer. The approaches are verified to be hyperstable. As a result, the drive can be operated in a wide range of speed, and can be operated stably at zero speed. Experimental results show that the scheme is effective.<>

Keywords

State estimation; electric drives; feedback; induction motors; invertors; machine control; model reference adaptive control systems; rotors; stability; state estimation; stators; velocity control; adaptive observer; feedback; induction motor drive; machine control; model reference adaptive control system; rotor; sensorless; speed control; stability; state identification; stator resistance; vector control; Adaptive control; Equations; Feedback; Inverters; Motor drives; Observers; Programmable control; Rotors; Stators; Velocity control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1991., Conference Record of the 1991 IEEE

Conference_Location

Dearborn, MI, USA

Print_ISBN

0-7803-0453-5

Type

conf

DOI

10.1109/IAS.1991.178187

Filename

178187