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Comparison Between Stator-Flux and Grid-Flux-Oriented Rotor Current Control of Doubly-Fed Induction Generators

Andreas Petersson (Institutionen för elkraftteknik, Kraftelektronik och vindenergi) ; Lennart Harnefors (Extern ; Institutionen för elkraftteknik, Kraftelektronik och vindenergi) ; Torbjörn Thiringer (Institutionen för elkraftteknik, Kraftelektronik och vindenergi)
IEEE Power Electronics Specialists Conference (ISSN 0275-9306). Vol. 1 (2004), p. 482-486.
[Konferensbidrag, refereegranskat]

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.

Nyckelord: asynchronous generators, damping, electric current control, machine vector control, magnetic flux, reactive power, stability, damping system, doubly-fed induction generators, grid-flux-oriented system, reactive power, rotor current control, stability point, stator-flux-oriented system



Denna post skapades 2006-08-25.
CPL Pubid: 2409

 

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Institutioner (Chalmers)

Institutionen för elkraftteknik, Kraftelektronik och vindenergi (1900-2004)

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur