A Method of Speed Sensorless Vector Control Parallel -Connected Dual Induction Motors Fed by One Inverter in a Rotor Flux Feedback Control

Author

Nishimura, Jun ; Oka, Kazuo ; Matsuse, Kouki

Author_Institution

Meiji Univ., Kawasaki

fYear

2007

fDate

27-30 Nov. 2007

Firstpage

1290

Lastpage

1294

Abstract

A purpose of this paper is to present the speed- sensorless vector method of parallel-connected dual induction motors fed by one inverter. This system may be unstable when the ratings of each induction motor are different and an extremely unbalanced load for both motors is added. Then we suggest a control method that the system can be stable in this condition. According to this method, the rotor flux is directly controlled to be constant by a rotor flux feedback control though it isn´t controlled in an ordinary system.

Keywords

adaptive control; feedback; induction motors; observers; rotors; velocity control; adaptive rotor flux observers; field oriented control; parallel-connected dual induction motors; rotor flux feedback control; speed sensorless vector control; Adaptive control; Control systems; Costs; Feedback control; Induction motors; Inverters; Machine vector control; Programmable control; Rotors; Stators; Adaptive Rotor Flux Observer; Directed-Field-Oriented Control and Rotor Flux Feedback Control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 2007. PEDS '07. 7th International Conference on

Conference_Location

Bangkok

Print_ISBN

978-1-4244-0645-6

Electronic_ISBN

978-1-4244-0645-6

Type

conf

DOI

10.1109/PEDS.2007.4487870

Filename

4487870