Estimação de Estados Desacoplada para Sistemas Interligados de Transmissão e Distribuição

Carolina C. Durce; Andressa L. Monteiro; Renan K. Portelinha; Elizete M. Lourenço; Odilon L. Tortelli

doi:10.20906/SBAI-SBSE-2023/3978

Carolina C. Durce Universidade Federal do Paraná, Curitiba - PR
Andressa L. Monteiro Universidade Federal do Paraná, Curitiba - PR
Renan K. Portelinha Universidade Federal do Paraná, Curitiba - PR
Elizete M. Lourenço Universidade Federal do Paraná, Curitiba - PR
Odilon L. Tortelli Universidade Federal do Paraná, Curitiba - PR

DOI: https://doi.org/10.20906/SBAI-SBSE-2023/3978

Keywords: T&D interconnected systems, state estimation, decoupled methods, complex per unit normalization

Abstract

This paper presents a fast-decoupled state estimation method for interconnected transmission and distribution systems (T&D). The proposed approach is based on an innovative application of the complex normalization per unit that, in addition to enabling the use of decoupled methods in distribution systems, allows the processing of interconnected T&D networks without resorting to compensation techniques in the border buses, which brings robustness to the iterative process. To assess the effectiveness and performance of the new approach, simulations were performed on an IEEE-14 bus system connected to two 69-bus systems.