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A control strategy for a three-level unified power quality conditioner

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Resumo:In this work a control strategy for a three-level Unified Power Quality Conditioner (UPQC) is introduced. Basically, this control strategy is based on the set of active and non-active (reactive) power definitions in the time domain, which have been proposed by Fryze in the 30´s of the last century. The goal of this work consists in expand this control strategy to deal with three-level converters. The use of three-level converters allows a better performance of the equipment, by reducing harmonics and the ripple of the generated voltages and currents. Simulation results on PSCAD/EMTDC will be illustrated in order to verify the accuracy of the expanded control strategy.
Autores principais:Monteiro, Luís F. C.
Outros Autores:Costa, José C. C.; Aredes, Maurício; Afonso, João L.
Assunto:Active filters NPC three-level converters Lagrange multiplier method Power quality
Ano:2005
País:Portugal
Tipo de documento:comunicação em conferência
Tipo de acesso:acesso aberto
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho
Descrição
Resumo:In this work a control strategy for a three-level Unified Power Quality Conditioner (UPQC) is introduced. Basically, this control strategy is based on the set of active and non-active (reactive) power definitions in the time domain, which have been proposed by Fryze in the 30´s of the last century. The goal of this work consists in expand this control strategy to deal with three-level converters. The use of three-level converters allows a better performance of the equipment, by reducing harmonics and the ripple of the generated voltages and currents. Simulation results on PSCAD/EMTDC will be illustrated in order to verify the accuracy of the expanded control strategy.