Sistemas de Acionamento de Máquinas com Estratégias de Controle Tolerante a Faltas
DOI:
https://doi.org/10.18618/REP.2004.1.045052Keywords:
Estratégias de Controle Tolerante a Faltas, Máquinas Elétricas, Sistemas de AcionamentoAbstract
Este trabalho apresenta a integração completa dos procedimentos de detecção, isolação e compensação de faltas, na composição de dois sistemas de acionamento de máquinas com estratégias de controle tolerante a faltas. Essas estratégias podem compensar as faltas de circuito-aberto e de curto-circuito ocorridas nas chaves de potência do inversor de tensão. A compensação da condição de falta é obtida através da reconfiguração do circuito do inversor, utilizando-se chaves auxiliares e fusíveis semicondutores rápidos. Esses dispositivos são utilizados para definição do circuito do inversor na condição de pós-falta. A utilização desses procedimentos permite a continuidade de operação do inversor após a isolação da chave com defeito do inversor de tensão. As estratégias de tolerância a faltas foram validadas através de resultados experimentais.
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