Title :
A Control Method for Asynchronous Motor Based on Stator Current Vector Orientation
Author :
Lin, Jiaquan ; Zang, Yi ; Zhang, Jun ; Wang, Xu ; Liu, Zongfu
Author_Institution :
Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang
Abstract :
The stator flux model is different at high speed and low speed for the direct torque control (DTC), so the structure of DTC system is complex. Aiming at this issue, a new scheme of induction motor drive is proposed. The core idea is controlling the angle between the stator current vector and the rotor flux vector. It doesn´t need the stator flux model. The system will obtain quick torque response by this control strategy. This new method can achieve wide speed range including zero speed. Very few parameters require to be adjusted and the system structure is very simple contrast to the conventional DTC system. It is robust to the variations of motor parameters. Simulation results have confirmed the effectiveness of the presented scheme
Keywords :
induction motor drives; machine control; robust control; rotors; stators; torque control; asynchronous motor; control method; direct torque control; induction motor drive; motor parameter; rotor flux vector; stator current vector orientation; torque response; zero speed; Current measurement; Differential equations; Induction motors; Information science; Machine vector control; Rotors; Stator cores; Synchronous motors; Torque control; Voltage; Asynchronous motor; Stator current vector orientation; Whole speed range drive; Zero speed;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1713413
