DFIG performance assessment during low voltage ride through in the dynamic voltage stability of an electric power system

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2011

Autores

Monteiro Pereira, RM (Autor) Outra; Machado Ferreira, CM (Autor) Outra; Fernando Maciel Barbosa (Autor) FEUP

Ata de Conferência Internacional

Título: Proceedings of the Universities Power Engineering Conference

2011 46th International Universities' Power Engineering Conference, UPEC 2011

5 September 2011 through 8 September 2011

Indexação

Scopus - 2 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia electrotécnica

Outras Informações

ID Authenticus: P-00G-DJN

Abstract (EN): In this paper it was studied the performance evaluation of Doubly-Fed Induction Generator (DFIG) in the analysis of dynamic voltage stability during Low Voltage Ride Through (LVRT) in electric power systems. Two models of wind turbines were analyzed. In one of the models the wind turbines are equipped with pitch control coupled with a Fixed Speed Induction Generator (FSIG) and a shunt capacitor bank. In the other model the wind turbines are equipped with DFIG, crowbar and chopper. To protect the rotor side converter from tripping due to overcurrents in the rotor circuit or overvoltage in the DC link during voltage dips a crowbar was installed in DFIG. Nowadays the most efficient plants use technologies that allow them to stay connected during a fault and to produce again normally after the disturbance The model used can take into account these new technologies. The automatic voltage regulators of the generating units, and the turbine speed governors were modelled in detail. Different load models were used and the under load tap changers were also taken into account. The simulation results were obtained using the EUROSTAG software package. Finally, some conclusions that provide a better understanding of the dynamic voltage stability of a system with FSIG and DFIG models during LVRT are pointed out. © VDE VERLAG GMBH.

Idioma: Inglês

Tipo (Avaliação Docente): Científica