CONTROLE DE CORRENTE APLICADO EM INVERSOR MONOFÁSICO DE TENSÃO

• Ano de defesa: 2015
• Autor(a) principal: Lima, Marcel Soares
• Orientador(a): RIBEIRO, Luiz Antonio de Souza
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Maranhão
• Programa de Pós-Graduação: PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA DE ELETRICIDADE/CCET
• Departamento: Engenharia
• País: BR
• Palavras-chave em Português: inversor monofásico de tensão; controle de corrente; controlador PI síncrono; controlador ressonante
• Palavras-chave em Inglês: single-phase inverter voltage; current control; Synchronous PI controller; resonant controller
• Área do conhecimento CNPq: CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
• Link de acesso: http://tedebc.ufma.br:8080/jspui/handle/tede/294

With advancement of power electronics and the wide range of applications involving single-phase inverter voltage, current controllers has gained great prominence, because they control the flow of energy supplied to the grid or to a load and compensate some quality energy problems. For this, various techniques for controlling power has been studied in order to meet the robustness characteristics, accuracy and speed of response. In addition, another important characteristic, which has been adopted for accurately determining the choice of the current driver is the possibility of eliminating disturbances in specific frequency, such as those caused by harmonicas of the fundamental signal. This paper presents the study, analysis and resonant controller design. Since this controller is equivalent to adding two PI controllers synchronously, a positive sequence and negative sequence other, implemented in the stationary frame of reference, we will investigate the possible resonance structures of controlling synchronous equivalent to PI controllers, and vector classic and the advantages and disadvantages of each. The analyses of resonant controllers are held in the continuous domain and then the drivers are implemented in discrete domain, taking into account the computational delay. It is also performed the analysis and design of strategies for controlling resonant with and without a delay compensator. Finally, experimental tests will be performed to confirm the analyzes in this paper.