Title :
Small-Signal Stability Analysis of a Grid Connected Doubly-Fed Induction Generator Under Decoupled P-Q Control
Author :
Li, Hongmei ; Yi, Dai
Author_Institution :
Dept. of Electr. Eng., Hefei Univ. of Technol., Hefei
Abstract :
Small signal stability analysis is conducted considering grid connected doubly-fed induction generator (DFIG) type. The modeling of a grid connected DFIG system is first set up and the whole model is formulated by a set of differential algebraic equations (DAE). Then, the mathematical model of rotor-side converter is built with decoupled P-Q control techniques to implement stator active and reactive powers control. Based on the abovementioned researches, the small signal stability analysis is carried out to explore and compared the differences between the whole system with the decoupled P-Q controller or not by eigenvalues and participation factors. Finally, numerical results demonstrate the system are stable, especially some conclusions and comments of interest are made.
Keywords :
asynchronous generators; differential algebraic equations; machine control; reactive power control; stability; decoupled P-Q control; differential algebraic equations; grid connected doubly-fed induction generator; reactive power control; rotor-side converter; small-signal stability analysis; Control systems; Differential algebraic equations; Eigenvalues and eigenfunctions; Induction generators; Mathematical model; Power system modeling; Reactive power control; Rotors; Stability analysis; Stators;
Conference_Titel :
Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-2486-3
Electronic_ISBN :
978-1-4244-2487-0
DOI :
10.1109/APPEEC.2009.4918772
