Novas Estratégias de Controle Fuzzy Aplicadas ao Conversor do DFIG para Melhoria da Estabilidade Transitória em Sistemas Eólicos (New Fuzzy Control Strategies Applied to the DFIG Converter in Wind Generation Systems)

João Paulo Abreu Vieira (jpavieira@yahoo.com.br), Marcus Vinicius Alves Nunes (mvan@ufpa.br), Ubiratan Holanda Bezerra (bira@ufpa.br), Walter Barra (walbarra@ufpa.br)


UFPA - Federal University of Pará
This paper appears in: Revista IEEE América Latina

Publication Date: June 2007
Volume: 5,   Issue: 3 
ISSN: 1548-0992


Abstract:
This paper presents new fuzzy control strategies which may be applied to the converter connected to the rotor of doubly fed induction generators (DFIG) composing a variable speed wind generation system connected to a real electrical grid. The fuzzy control proposed strategies are of the type supervised “look-up-table”. The performance of these intelligent controllers are compare with the fixed parameters PI controllers for fault ocurrence in the power system. The fuzzy controllers are supposed to better the transient performance of the electrical power system as compared with the conventional PI controllers. The obtained results from simulation studies have of the fuzzy controllers. To formulate the simulation studies an equivalent mathematical model of a significant number of wind turbines was implemented using the MATLABTM software packcage.

Index Terms:
doubly fed Induction machines, static converter, fuzzy control, power system transient stability   


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