Title :
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
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;
Conference_Titel :
Control and Decision Conference (CCDC), 2013 25th Chinese
Conference_Location :
Guiyang
Print_ISBN :
978-1-4673-5533-9
DOI :
10.1109/CCDC.2013.6561876
