Resumo

OCAMPO-ESCOBAR, Gabriela et al. Analysis of the reactive power capacity of electric vehicle charging stations to improve voltage stability in active distribution networks. Ciencia en Desarrollo [online]. 2025, vol.16, n.2, pp.59-72.  Epub 20-Jul-2025. ISSN 0121-7488.  https://doi.org/10.19053/uptc.01217488.v16.n2.2025.19010.

The proliferation of electric vehicles (EVs) poses significant challenges to voltage stability in power grids. In this context, this document focuses on the study of the reactive power capacity of electric vehicle charging stations (EVCS) and its influence on voltage stability in active distribution networks (ADN). This research employs a nonlinear programming model based on the Voltage Stability Index (VSI) and Monte Carlo simulations (MCS) to model load demand. Additionally, Particle Swarm Optimization (PSO) is used to optimize the distribution of power injected by EVCS, promoting efficient and sustainable grid management. The results highlight the need for strategies that improve the optimization of distribution networks in environments with non-linear loads and renewable distributed generation. In this regard, an improvement in the VSI is observed as EVCS inject reactive power into the system. At the same time, the inclusion of Distributed Energy Resources (DER) in enhancing the VSI is analyzed.

Palavras-chave : Charging stations; electric vehicles; voltage stability; VSI; MCS; PSO.

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