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An Enhanced Thevenin Equivalent Circuit of a Resonant-Controller-Based Utility-Interface

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Guerreiro, Joel Filipe ; Guillardi Junior, Hildo ; Yutaka Ota, Joao Inacio ; Pomilio, Jose Antenor ; Batschauer, AL ; Filho, AJS ; Rech, C ; Brandao, DI ; Martins, DC ; Tedeschi, E ; Santos, EC ; Marafao, FP ; Antunes, FLM ; Goncalves, FAS ; Neves, FAD ; Braga, HAC ; Pinto, JOP ; Duarte, J ; Matakas, L ; Barreto, LHSC ; Heldwein, ML ; Correa, MBD ; Mattavelli, P ; Barbosa, PG ; Magalhaes, RD ; Machado, RQ ; Madawala, U
Número total de Autores: 27
Tipo de documento: Artigo Científico
Fonte: 2019 IEEE 15TH BRAZILIAN POWER ELECTRONICS CONFERENCE AND 5TH IEEE SOUTHERN POWER ELECTRONICS CONFERENCE (COBEP/SPEC); v. N/A, p. 6-pg., 2019-01-01.
Resumo

This work presents an alternative method to simulate an Utility Interface (UI) consisting of a Power Electronics Converter (PEC). The proposed method is based on an equivalent resistor-inductor-capacitor (RLC) passive network circuit that resembles the output impedance of the UI, taking into account the internal resonant control characteristics of the UI. Although a controllable voltage source may emulate an UI converter, introducing an RLC network leads to a more accurate approximation of the complete UI simulated system. Comparisons are made using the frequency response of the complete system and the RLC-network circuit, and simulations are carried out on PSIM software. Results show a satisfactory dynamic and steady-state performance with a notable reduction of the elapsed simulation time. Therefore, the RLC-network-based UI could be applicable to fasten and to simplify simulations when multiples PECs are being analyzed within a complex environment, such as a microgrid. (AU)

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: 17/05565-7 - Redes elétricas embarcadas em aeronaves: garantia da qualidade da energia elétrica e soluções eletrônicas de potência
Beneficiário:Jose Antenor Pomilio
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 18/13993-1 - Estudo da estabilidade sistêmica de rede elétrica com múltiplas fontes e cargas controladas
Beneficiário:João Inácio Yutaka Ota
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado