Novel speed estimation method for induction motor based on extra rotor synchronous current control

Author

Kaku, Bin ; Miyashita, Ichiro ; Yasukawa, Shinobu

Author_Institution

Tech. Res. Lab., Tokyo Electr. Manuf. Co. Ltd., Kanagawa, Japan

Volume

1

fYear

1998

fDate

17-22 May 1998

Firstpage

852

Abstract

A novel speed estimation method for an induction motor is presented. Based on the carrier frequency sinusoidal modulation PWM, an extra frequency controllable rotor current can be generated. The amplitude of this current can be controlled to be zero by controlling its frequency to be equal to the rotating frequency of an induction motor, so the rotating frequency of the induction motor can be estimated as the frequency of the extra rotor current when its amplitude is zero

Keywords

PWM invertors; electric current control; frequency control; induction motors; machine control; parameter estimation; rotors; PWM invertors; carrier frequency sinusoidal modulation PWM; current amplitude control; frequency control; frequency controllable rotor current; induction motor; rotating frequency; rotor synchronous current control; speed estimation method; Amplitude estimation; Current control; Equations; Frequency estimation; Frequency modulation; Induction motors; Pulse width modulation; Rotors; Stators; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.701999

Filename

701999