Title :
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
fDate :
Oct. 29 2006-Nov. 1 2006
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;
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
DOI :
10.1109/PSCE.2006.296467
