Title :
Speed identification for speed sensorless vector control of induction motors based on voltage decoupling control principle
Author :
Zou, Xudong ; Zhu, Pengcheng ; Kang, Yong ; Chen, Jian
Author_Institution :
Dept. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Hubei, China
Abstract :
This paper describes a simplified model of induction motor based on voltage decoupling control principle for speed sensorless vector-controlled induction drive system. The model consists of two subsystems, the rotor flux and torque current subsystems, and is conveniently to solve the problems of voltage coupling. According to this model, a speed identification method is presented for a speed sensorless vector-controlled induction motor drive system, which uses t axis flux to obtain rotor speed. The validity of the proposed method is verified by computer simulation and experiment results.
Keywords :
angular velocity control; induction motor drives; machine vector control; magnetic flux; parameter estimation; rotors; torque; voltage control; computer simulation; induction motor drive; induction motors; rotor flux subsystem; rotor speed; speed identification; speed sensorless vector control; speed sensorless vector-controlled induction drive; t axis flux; torque current subsystem; voltage decoupling control principle; Computer simulation; Couplings; Equations; Induction motors; Machine vector control; Rotors; Sensorless control; Stators; Torque control; Voltage control;
Conference_Titel :
Electric Machines and Drives Conference, 2003. IEMDC'03. IEEE International
Print_ISBN :
0-7803-7817-2
DOI :
10.1109/IEMDC.2003.1211274
