Controle De Gerador De Indução Duplamente Alimentado Diante De Afundamentos De Tensão
DOI:
https://doi.org/10.18618/REP.2009.3.189199Keywords:
Controle direto de potência, Controle orientado pelo campo, DFIG, Geração Eólica, ridethrough capabilityAbstract
Neste artigo são apresentados estudos de turbinas eólicas equipadas com geradores de indução duplamente alimentados (Doubly-Fed Induction Generator - DFIG) frente a afundamentos severos de tensão no ponto de conexão comum (PCC) com a rede elétrica. Este trabalho propõe uma nova estratégia de controle capaz de tornar factível o controle e funcionamento de DFIG durante afundamentos de tensão. Para tanto, o sistema de controle proposto utiliza a realimentação das correntes do estator. A validação da teoria proposta foi realizada a partir da simulação de modelos desenvolvidos usando a ferramenta de simulação no domínio do tempo PSCAD/EMTDC, assim como, a construção e teste de um protótipo de 6 kVA de potência.
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