Mnltiloop Controller and Reference Generator for a Dynamic Voltage Restorer Implementation
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Data
2008-01-01
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Coorientador
Pós-graduação
Curso de graduação
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IEEE
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Trabalho apresentado em evento
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Acesso aberto
Resumo
This paper deals with the design and analysis of a Dynamic Voltage Restorer output voltage control. Such control is based on a multiloop strategy, with an inner current PID regulator and an outer P+Resonant voltage controller. The inner regulator is applied on the output inductor current. It will be also demonstrated how the load current behavior may influence in the DVR output voltage, which. justifies the need for the resonant controller. Additionally, it will be discussed the application of a modified algorithm for the identification of the DVR voltage references, which is based on a previously presented positive sequence detector. Since the studied three-phase DVR is assumed to be based on three identical H-bridge converters, all the analysis and design procedures were realized by means of single-phase equivalent circuits. The discussions and conclusions are supported by theoretical calculations, nonlinear simulations and some experimental results.
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Inglês
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2008 13th International Conference on Harmonics and Quality of Power, Vols 1 and 2. New York: IEEE, p. 669-674, 2008.