Title :
Rotor current based MRAS observer for doubly-fed induction machines
Author :
Cárdenas, R. ; Peña, R. ; Proboste, J. ; Asher, G. ; Clare, J.
Author_Institution :
Electr. Eng. Dept., Univ. of Magallanes, Punta Arenas, Chile
fDate :
6/10/2004 12:00:00 AM
Abstract :
A new control strategy for sensorless vector control of doubly-fed induction machines is presented. The system is based on a rotor current model reference adaptive system (MRAS). The output of the observer is the rotational speed and rotor position angle is used to modulate/demodulate the rotor currents and voltages. A small-signal model is analysed. Experimental results for a stand-alone doubly-fed induction generator are presented.
Keywords :
asynchronous generators; demodulation; machine vector control; model reference adaptive control systems; modulation; observers; rotors; doubly fed induction machines; model reference adaptive system observer; modulation/demodulation; rotational speed; rotor current; rotor position angle; sensorless vector control; small signal model;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040527
