Research on speed sensorless vector control of induction motor based on torque current differential

Author

Qinghui Wu ; Lin Li ; Yanwei Pang ; Yang Wang

Author_Institution

Inst. of Eng., Bohai Univ., Jinzhou, China

fYear

2013

fDate

25-27 May 2013

Firstpage

5180

Lastpage

5182

Abstract

According to the rotor flux oriented dynamic mathematical model from Induction motor, the speed can be estimated with synchronous speed based on the torque current differential. Combing with slip formula, in this paper we constitute speed sensorless vector control system of Induction motor with current hysteresis loop control inverter. The simulation results show that the control scheme is valid and the speed estimation scheme is characterized by higher accuracy, faster dynamic response performance and higher steady precision.

Keywords

induction motors; invertors; rotors; sensorless machine control; torque control; velocity control; current hysteresis loop control inverter; dynamic mathematical model; dynamic response; induction motor; rotor flux; slip formula; speed estimation scheme; speed sensorless vector control; synchronous speed; torque current differential; Equations; Estimation; Induction motors; Machine vector control; Mathematical model; Rotors; Torque; Induction Motor; Speed Sensorless; Torque Current Differential; Vector Control;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (CCDC), 2013 25th Chinese

Conference_Location

Guiyang

Print_ISBN

978-1-4673-5533-9

Type

conf

DOI

10.1109/CCDC.2013.6561876

Filename

6561876