Optimasi Rekonfigurasi Jaringan Distribusi Tegangan Menengah Kota Medan Menggunakan Algoritma Kunang – Kunang (Firefly Algorithm)

Abstract

Network reconfiguration is defined as changing the topological structure of the distribution network configuration by changing the switch position (open state or closed state) of the tie and sectionalizing switches. The main goal of distribution network reconfiguration is to reduce active power losses and improve the voltage profile. In the distribution network reconfiguration process there are many limitations that must not be violated when finding the most optimal distribution network configuration. maintained in radial form and distribution system voltage in the range of -5% and +10% of nominal voltage. the selection of open switches depends on the voltage difference, this results in the discovery of local minima but the process of obtaining the optimal configuration is much faster. In this research, the algorithm proposed is the firefly algorithm, this scheme was tested on the NR7 84 bus 20 kV distribution system in Medan. The results of the analysis using the proposed method obtained a decrease in power loss from 33.21 kW to 24.49 kW or reduced 26.25% with an open switch 84, 9, 10, 17, 19, 26, 29, 75, 34, 39, 43, 95, 96, 97.