Controle Escalar do Motor de Indução Usando a Técnica Sensorless Neural
DOI:
https://doi.org/10.18618/REP.2014.1.024035Keywords:
Controle Escalar, Estimador de Velocidade, Motor de Indução, Redes Neurais ArtificiaisAbstract
Os motores de indução têm grande importância nos mais diversos setores industriais por sua robustez e baixo custo. Assim, quando a carga acoplada ao seu eixo necessitar do controle de velocidade, parte das estratégias de controle e acionamento é baseada na estimativa de velocidade. A proposta deste trabalho consiste em apresentar uma metodologia alternativa às tradicionais para a estimativa de velocidade do motor de indução trifásico. Este é acionado por um inversor de tensão utilizando modulação espacial vetorial na estratégia de controle escalar baseada em redes neurais artificiais. Resultados de simulação e experimentais são apresentados para validar o método proposto com o motor submetido a variações de velocidade e torque de carga, os quais demonstraram ser bem promissores.
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