Desempenho de um controle repetitivo em um sistema fotovoltaico conectado à rede sob condições de distorção

• Ano de defesa: 2018
• Autor(a) principal: Guedes, Kamilla Maia Barreto
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal da Paraíba; Brasil; Engenharia Elétrica; Programa de Pós-Graduação em Engenharia Elétrica; UFPB
• Palavras-chave em Português: Sistema fotovoltaico; Harmônicos de tensão; Controle repetitivo; Controle ressonante; Photovoltaic system; Voltage harmonics; Repetitive control; Resonant control; CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
• Link de acesso: https://repositorio.ufpb.br/jspui/handle/123456789/15187

This work presents a methodology for the use of a repetitive-based control in a photovoltaic system connected to the grid in order to make it suitable to the presence of harmonic distortions of voltage coming from the electric grid. The system used is composed of photovoltaic module, current-fed push-pull DC-DC converter, single-phase full bridge inverter, LCL filter and control system. To this system, that works in real time, is not used phase locked loop for electric grid voltage, then there is a smaller processing time and system complexity. As one of the consequences, the processing time is quite reduced, it is an advantage in the execution of the system in real time. Simulation results in Matlab® are presented, as well as experimental results obtained in the Laboratory of Optimization of Electrical Systems of the Federal University of Paraíba - UFPB. A comparison between the performance of the repetitive-based control and the resonant control with respect to the presence of network voltage harmonics is presented.