Coordinación óptima de protecciones de sobrecorriente en sistemas de distribución con integración de recursos energéticos distribuidos comparando los métodos metaheurísticos WOA y GWO

Abstract

This document addresses the optimal adjustment of time-delayed overcurrent protections in an IEEE 33-bus distribution system, using PowerFactory simulations and the WOA and GWO optimization algorithms. The presence of distributed generation and the variation of short-circuit levels motivated the development of a procedure capable of defining precise settings to ensure system sensitivity and selectivity. The proposed method considers scenarios with different distributed generation locations, performing fault current extraction and simultaneous optimization of pickup and TMS parameters, while ensuring compliance with the established coordination time interval (CTI). The results show technically consistent settings and a significant reduction in operating times compared to the initial values. Among the evaluated techniques, the GWO algorithm exhibited the best overall performance, providing stable and efficient configurations under different system conditions. Overall, the methodology proves to be a robust alternative for the automatic adjustment of protection systems in modern distribution networks with distributed generation integration.