Optimization of Overcurrent Relay Coordination using Artificial Bee Colony

Abstract

A protection relay system is essential to isolate the disturbance as early as possible in the electric power system. In overcoming various disturbances, relay coordination is important to cooperate relay to ensure safe and reliable operation for the continuity of electrical service. The relay coordination is the main relay that works selectively against disturbances that occur in the electrical system. If the relay fails to isolate the disturbance, the backup relay can work as a backup safety. Previously, research on optimization of overcurrent relay coordination has been carried out using the Fuzzy Logic method. This study compares the Artificial Bee Colony method with Fuzzy Logic optimization for time and TMS values for getting optimization. Using the Artificial Bee Colony method, the study results showed the average TMS error value is 21.57%, and the average time error value is 13.46%. On the other hand, the fuzzy logic optimization average TMS error value is 30.48%, and the average time error value is 43.18%.