A speed sensorless vector control of induction motor operating at high efficiency taking core loss into account

Author

Matsuse, Kouki ; Taniguchi, Shotaro ; Yoshizumi, Tatsuya ; Namiki, Kazushige

Author_Institution

Dept. of Electr. Eng., Meiji Univ., Kawasaki, Japan

Volume

2

fYear

1999

fDate

1999

Firstpage

1259

Abstract

This paper proposes a speed-sensorless vector control method for an induction motor operating at high efficiency and high response, in which core loss is taken into account, and discusses the system´s performance. The proposed vector control system consists of a speed-adaptive rotor-flux observer which takes core loss into account and employs a direct-field-oriented control scheme which compensates for the influence of core loss. On the basis of simulation and experimental results, the authors show that the proposed system can estimate motor speed even when the rotor flux is changed

Keywords

compensation; control system analysis; control system synthesis; induction motors; losses; machine theory; machine vector control; magnetic cores; observers; rotors; velocity control; core loss compensation; core loss considerations; high efficiency operation; induction motor; motor speed estimation; rotor flux; speed sensorless vector control; speed-adaptive rotor-flux observer; Circuits; Control systems; Core loss; Eddy currents; Inductance; Induction motors; Machine vector control; Rotors; Stator cores; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE

Conference_Location

Phoenix, AZ

ISSN

0197-2618

Print_ISBN

0-7803-5589-X

Type

conf

DOI

10.1109/IAS.1999.801664

Filename

801664