The Novel Approach for Control of Induction Motors based on Zero-Crossing Times Signal of Stator Currents

Author

Eshraghnia, Roozbeh ; Mohammadi, Ali Akbar ; Ansari, Kurosh

Author_Institution

Iran Grid Manage. Co., Tehran

fYear

2006

fDate

Oct. 29 2006-Nov. 1 2006

Firstpage

1127

Lastpage

1131

Abstract

The purpose of this study is to illustrate a new method for sensorless vector control of induction motors. This approach uses zero-crossing times (ZCT) signal of stator current to estimate rotor speed. ZCT signal contains useful information, which can be used for estimation of rotor speed and resistance. We have used this information for online estimation of rotor speed. To avoid time-consuming fast Fourier transformation (FFT) analysis of ZCT signal, we have used switchable high order Butterworth filters in order to extract rotor frequency. Simulation result has expressed good performance of this simple and inexpensive sensorless vector control of induction motors

Keywords

Butterworth filters; fast Fourier transforms; induction motors; machine vector control; FFT; ZCT; fast Fourier transformation; high order Butterworth filters; induction motors; resistance estimation; rotor speed estimation; sensorless vector control; stator; zero-crossing times; AC motors; DC motors; Induction motor drives; Induction motors; Machine vector control; Observers; Rotors; Sensorless control; Signal analysis; Stators;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Systems Conference and Exposition, 2006. PSCE '06. 2006 IEEE PES

Conference_Location

Atlanta, GA

Print_ISBN

1-4244-0177-1

Electronic_ISBN

1-4244-0178-X

Type

conf

DOI

10.1109/PSCE.2006.296467

Filename

4075906