Modeling and Control of a Single-Phase Grid-Connected Inverter with LCL Filter

Autor(es)

Bonaldo, Jakson Paulo ^[1] ; Olimpio Filho, Jose de Arimateia ^[2] ; dos Santos Alonso, Augusto Matheus ^{[2, 3]} ; Pinhabel Marafao, Fernando ^[2] ; Morales-Paredes, Helmo Kelis ^[2]

Afiliação do(s) autor(es)

^[1] Fed Univ Mato Grosso UFMT, Dept Elect Engn, Cuiaba - Brazil

^[2] Sao Paulo State Univ Unesp, Inst Sci & Technol, Sorocaba - Brazil

^[3] Norwegian Univ Sci & Technol NTNU, Dept Elect Power Engn, Trondheim - Norway

• Tipo de documento: Artigo Científico
• Fonte: IEEE Latin America Transactions; v. 19, n. 02, p. 250-259, FEB 2021.
• Citações Web of Science: 1

Resumo

The increasing penetration of renewable energy sources is pushing low-voltage electrical grids to become predominantly power electronic-based. Consequently, the design and operation of the related grid-connected converters must be achieved under proper manner, in order to maintain stability and support reliable operation of the entire power system. Thus, this work presents the modeling and control of a single-phase grid-connected multifunctional converter, which operates as a current-controlled voltage source inverter using an LCL-type output filter. An active damping approach is employed for attenuation of oscillations occurring from interactions between the grid and the inductances and capacitance of the LCL filter. Additionally, the voltage and current control loops of the inverter are addressed in this paper, along with the design of their respective controllers, considering that the grid impedance is unknown. Experimental results demonstrate stable operation of the inverter and show its satisfactory behavior under steady state conditions, proving its capability to offer ancillary services such as active filtering. (AU)

• Processo FAPESP: 17/22629-9 - Desenvolvimento de técnicas de compensação e metodologias para análise da qualidade de energia dos modernos sistemas de distribuição
• Beneficiário: Helmo Kelis Morales Paredes
• Modalidade de apoio: Bolsas no Exterior - Pesquisa
• Processo FAPESP: 17/20987-5 - Implementação de um conversor multifuncional conectado à rede elétrica para compensação de oscilações de potência instantânea
• Beneficiário: José de Arimatéia Olímpio Filho
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 16/08645-9 - Pesquisas interdisciplinares em redes inteligentes de energia elétrica
• Beneficiário: João Bosco Ribeiro do Val
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 18/22172-1 - Validação experimental de estratégia multiobjetivo para coordenação de conversores multifuncionais em microrredes Ca de baixa tensão
• Beneficiário: Augusto Matheus dos Santos Alonso
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado