Title :
A slip-current control system of asynchronous motor based on FOC model
Author :
Wang, Jingjing ; Wang, Xiaodong ; Xu, Guoqing ; Zhang, Zhouyun
Author_Institution :
Dept. of Electr. Eng., Tongji Univ., Shanghai, China
Abstract :
The traditional V/F control system of asynchronous motor realizes a low cost and simple design, but the dynamic performance cannot be assured. This thesis deduces the relation between motor torque and stator current, based on the FOC (field oriented control) model of asynchronous motor. Using this equation, we designed a simple control system, which well considers the characteristic of constant flux field and the convenience of DSP operation. The system also avoids the influence of rotor resistance. The block diagram and concrete realization of the system is introduced. Being used to drive QR pure electric vehicle, the system indicates its reliability and the foreground of further popularization.
Keywords :
control system synthesis; electric current control; induction motors; machine vector control; slip (asynchronous machines); DSP operation; QR pure electric vehicle; V/F control system; asynchronous motor; concrete realization; constant flux field; control system synthesis; field oriented control; motor torque; reliability; rotor resistance; slip current control system; stator current; Control system synthesis; Control systems; Costs; Digital signal processing; Electric resistance; Equations; Rotors; Stators; Torque control; Vehicle dynamics;
Conference_Titel :
Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on
Print_ISBN :
0-7803-8273-0
DOI :
10.1109/WCICA.2004.1342364
