Análise de impacto de incremento de carga em redes de distribuição de energia elétrica

Abstract

In recent decades, due to increasing urbanization, technological and industrial development, and electrification, the demand for electricity continues to grow. Therefore, an analysis of the impact of increased load on distribution networks is essential for expansion planning purposes. This work, therefore, proposes to evaluate the impacts of increased load on electricity distribution networks through successive power flow analyzes in order to determine the limitations and risks arising from load increases (i.e., limits of voltage levels). voltage and line congestion). Solutions considered to ensure the integrity and stability of the system include: reconducting, insertion of capacitor banks, insertion of voltage regulators and replacement of transformers. A case study was carried out in an 11-bus, three-phase and unbalanced distribution network. In this one, simulations were carried out over 16 years, with load growth of 3.6% per year, in which lines become congested. Therefore, the reconducting action was carried out and an improvement in the voltage profiles of 8.1% was identified, an increase in the current conduction capacity of 35%, and a safe operation for another 8 years.