Comparison Between Stator-Flux and Grid-Flux-Oriented Rotor Current Control of Doubly-Fed Induction Generators
Paper in proceeding, 2004
Grid-flux (or grid-voltage)-oriented rotor current control of the doubly-fed induction generator is investigated in this paper. It is shown that by using a grid-flux-oriented system, the stability and damping of the system is independent of the d component of the rotor current, in contrast to a stator-flux-oriented system. Also for the stator-flux-oriented system, a certain value of the d component of the rotor current causes the system to become unstable. Hence, with a grid-flux-oriented system it is possible to produce as much reactive power as desired from a stability point of view. The theoretical results are verified experimentally with good result.
damping system
rotor current control
reactive power
electric current control
doubly-fed induction generators
grid-flux-oriented system
magnetic flux
stability point
reactive power
machine vector control
asynchronous generators
stability
stator-flux-oriented system
damping
Author
Andreas Petersson
Department of Electric Power Engineering, Power Electronics and Wind Energy
Lennart Harnefors
Torbjörn Thiringer
Department of Electric Power Engineering, Power Electronics and Wind Energy
IEEE Power Electronics Specialists Conference
0275-9306 (ISSN)
Vol. 1 482-486Subject Categories
Electrical Engineering, Electronic Engineering, Information Engineering