Title :
Comparison of MRAS based speed estimation methods for a stand alone Doubly Fed Induction Generator
Author :
Pattnaik, M. ; Kastha, D.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kharagpur, India
Abstract :
In this paper, different Model Reference Adaptive System (MRAS) based speed estimation methods are presented for a stand-alone Doubly Fed Induction Generator (DFIG) operating in the Variable Speed Constant Frequency (VSCF) mode. Among different MRAS based speed estimation techniques, stator flux based, rotor current based and reactive power based methods are compared in terms of their speed tracking capability during load and speed transients and also with parameter variation. Simulation results are presented to show the performance of each method.
Keywords :
angular velocity control; asynchronous generators; model reference adaptive control systems; rotors; sensorless machine control; stators; MRAS based speed estimation methods; load transients; model reference adaptive system; reactive power; rotor current; speed tracking capability; speed transients; stand alone doubly fed induction generator; stator flux; variable speed constant frequency mode; Adaptation models; Observers; Rotors; Simulation; Stators; Transient analysis; DFIG; MRAS; VSCF generator; sensorless vector control; wind energy;
Conference_Titel :
Energy, Automation, and Signal (ICEAS), 2011 International Conference on
Conference_Location :
Bhubaneswar, Odisha
Print_ISBN :
978-1-4673-0137-4
DOI :
10.1109/ICEAS.2011.6147168
