An Improved Integration Method to Estimate stator flux in induction motor with offsets of measured currents

Author

Jaebok Lee ; Sathiakumar, S. ; Shrivastava, Yash

Author_Institution

Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW, Australia

fYear

2013

fDate

Sept. 29 2013-Oct. 3 2013

Firstpage

1

Lastpage

6

Abstract

An improved integration method is proposed for estimation of stator flux in induction motor with error signals which are DC offsets and noise. The proposed method is able to solve the problem related with a pure integrator to estimate stator flux in induction motor for operating in a wide speed range. A drift is produced by integration of dc offset error present in the estimated stator flux because of DC offset in the measurement of phase current. The improved integration method solves the inherent problem of the pure integrator and removes the noise of the measured phase current.

Keywords

electric current measurement; induction motors; integrating circuits; integration; stators; DC offset error; error signals; induction motor; phase current measurement; pure integrator; stator flux estimation; Current measurement; Inductance; Induction motors; Software packages; Solids; DC offset error; Inherently Stator Flux Estimators (ISFE); induction motor; integration; stator flux estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Conference (AUPEC), 2013 Australasian Universities

Conference_Location

Hobart, TAS

Type

conf

DOI

10.1109/AUPEC.2013.6725463

Filename

6725463