Análise da utilização do syntochronverter na geração fotovoltaica

• Ano de defesa: 2018
• Autor(a) principal: Cançado, Stephanie Marcia Cardoso
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Rio de Janeiro; Brasil; Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia; Programa de Pós-Graduação em Engenharia Elétrica; UFRJ
• Palavras-chave em Português: Engenharia elétrica; Sincronizador; Conversor Boost; Máquina síncrona virtual; Fonte fotovoltaica; CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
• Link de acesso: http://hdl.handle.net/11422/11617

This dissertation analyzes the use of control strategy for inverters, which make it acts as virtual synchronous machines, known as Synchronverter, in the connection of a photovoltaic structure with the conventional power grid. The photovoltaic structure is dimensioned, studied and has the control of the DC-DC Boost converter used to follow the maximum power point. The study proposes to use the control in the format of an algorithm, incorporating the different modes of operation automatically, in addition to the control of the output current limit, to protect the inverter components, direct current (DC) link control, for the proper functioning of the DCDC converter, and self-synchronization with the network. The parameters for this control of the link are calculated based on a loop-test for specific characteristics of the proposed virtual synchronous machine. The tests are done in a simulation environment in PSIM 9.3.2. The results show that the use of the algorithm is efficient and that the Synchronverter can synchronize with the grid quickly and control the DC link, and that it can be used as a control in the inverter that connects the photovoltaic source to the network.