Joint Optimal Sizing and Operation of Unbalanced Three-Phase AC Microgrids Using HOMER Pro and Mixed-Integer Linear Programming

Autor(es)

Santos, Luiza Higino S. ; Silva, Jessica Alice A. ; Lopez, Juan Camilo ; Rider, Marcos J. ; da Silva, Luiz C. P.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CONTROL AUTOMATION AND ELECTRICAL SYSTEMS; v. 35, n. 2, p. 15-pg., 2023-12-27.

Resumo

This paper presents a methodology for jointly optimizing the sizing and operation of AC microgrids. The methodology is applied to the CAMPUSGRID microgrid, which is currently being developed at the State University of Campinas (UNICAMP) in Brazil. The distributed energy resources (DERs) considered in the study include a battery energy storage system (BESS), a dispatchable gas generator, and photovoltaic (PV) generation. The proposed energy management system (EMS) minimizes the costs associated with day-ahead operation of the DERs in an unbalanced three-phase AC microgrid. To develop the EMS as a mixed-integer linear programming (MILP) model, the MATLAB Link module of HOMER Pro and the AMPL API are used. Heuristic rules are also developed for contingency and post-contingency operations in case of unintentional disconnection from the main grid. The sizing simulations combine tariff regimes, contingencies, and dispatch strategies. The results demonstrate the influence of the tariff on the net present cost (NPC) and the importance of resilience in sizing DERs. Additionally, the proposed model is capable of assessing the impact of DERs on the electrical grid. Finally, the joint strategy proposed in this paper leads to a reduction in microgrid investment cost, improvement in voltage magnitude profile, and reduction in active power losses when compared to the default dispatch strategies of HOMER Pro. (AU)

• Processo FAPESP: 19/17306-1 - Desenvolvimento e implementação de técnicas de controle centralizadas e distribuídas para o gerenciamento ótimo de microrredes
• Beneficiário: Jéssica Alice Alves da Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 21/11380-5 - CPTEn - Centro Paulista de Estudos da Transição Energética
• Beneficiário: Luiz Carlos Pereira da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Ciência para o Desenvolvimento
• Processo FAPESP: 22/03441-7 - Metodologia para o Desenvolvimento de Digital Twins para Microrredes
• Beneficiário: Luiza Higino Silva Santos
• Modalidade de apoio: Bolsas no Brasil - Doutorado