Specifying angular reference for three-phase distribution system state estimators

Autor(es)

da Silva, Rafael Schincariol ^[1] ; Fernandes, Thiago Ramos ^[1] ; de Almeida, Madson Cortes ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Dept Syst & Energy, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: IET GENERATION TRANSMISSION & DISTRIBUTION; v. 12, n. 7, p. 1655-1663, APR 10 2018.
• Citações Web of Science: 3

Resumo

In power system state estimation, similar to power flow, an angular reference is required in order to solve the problem providing the most likely state of the system. For single-phase state estimators (SEs), the usual practice is to specify the angular reference at the substation bus, usually at 0 degrees. This study discusses and presents how to specify the angular reference for three-phase distribution systems SEs (DSSEs). As the main contributions, two different approaches for specifying the reference are presented and assessed. Additionally, the more general proposed approach is improved and a robust version, based on a reduced number of state variables, is presented. The proposed approaches are applied to three SEs commonly recommended for distribution systems. The results show that the approach based on a reduced number of state variables is a proper and general solution to specify the reference angles for three-phase DSSEs. (AU)

• Processo FAPESP: 15/19045-0 - Análise e Gestão de Sistemas Modernos de Distribuição de Energia Elétrica Usando Técnicas de Estimação de Estado e Medidores Inteligentes.
• Beneficiário: Madson Cortes de Almeida
• Modalidade de apoio: Auxílio à Pesquisa - Regular