Uma Estratégia de Controle Aplicada a Retificadores Pwm e Filtros Ativos de Potência em Derivação
DOI:
https://doi.org/10.18618/REP.20114.312319Keywords:
Ca/cc, Cc/ca, Filtro Ativo, Harmônicos, qualidade de energia, Retificador PWMAbstract
Neste trabalho é apresentado um algoritmo com uma estrutura simples para controlar um retificador PWM. Correntes de linha no lado c.a. com harmônicos são compensadas, e ainda, a tensão no barramento c.c. é regulada. Após a compensação das correntes de linha, o fator de potência torna-se elevado. O método de controle é efetivo mesmo quando as tensões do lado c.a. são distorcidas e desbalanceadas. O algoritmo pode ser utilizado sem modificações para o controle de um filtro ativo de potência. Resultados de simulação e experimental são apresentados para validar a técnica de controle proposta e a efetividade da metodologia.
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