Busca avançada
Ano de início
Entree


State Estimation for Unbalanced Three-Phase AC Microgrids Based on Mathematical Programming

Texto completo
Autor(es):
Acuna Acurio, Byron Alejandro ; Cherrez Barragan, Diana Estefania ; Lopez, Juan Camilo ; Grijalva, Felipe ; Rodriguez, Juan Carlos ; Pereira da Silva, Luiz Carlos ; IEEE
Número total de Autores: 7
Tipo de documento: Artigo Científico
Fonte: 2023 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE, ISGT; v. N/A, p. 5-pg., 2023-01-01.
Resumo

State estimation (SE) helps to determine the most-likely steady-state operation of microgrids based on field measurements. It is a fundamental data processing tool responsible for supporting and increasing system visibility and filtering errors that may appear in real-time measurements, system topology, and parameters. Hence, it serves as a reliable basis for the energy management system (EMS) infrastructure. Existing SE methods are based on Newton-like algorithms rather than using specific optimization. Nevertheless, SE can always be reduced to a constrained optimization problem, with the objective of minimizing a given criterion, e.g., weighted least squares (WLS) or weighted least absolute value (WLAV). In this context, this paper presents two unbalanced three-phase AC SE methods based on mathematical programming for microgrids. The effectiveness and validity of the proposed state estimation approach are demonstrated on a real microgrid located at the State University of Campinas, in Brazil, and over one widely known IEEE test system. The method can be easily adapted to other microgrids with different configurations, distributed energy resources, and measurements. Results show that the proposed methods report high accuracy, but the state estimator based on WLS is faster than the WLAV. (AU)

Processo FAPESP: 19/01906-0 - Restauração ótima distribuída de sistema de distribuição de energia elétrica utilizando o algoritmo da direção alternada de multiplicadores de Lagrange
Beneficiário:Juan Camilo Lopez Amezquita
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 15/21972-6 - Otimização do planejamento e da operação de sistemas de transmissão e de distribuição de energia elétrica
Beneficiário:Rubén Augusto Romero Lázaro
Modalidade de apoio: Auxílio à Pesquisa - Temático
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: 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