Abstract:
For the optimised co-ordination of Over current (OC) relays using this Optimal techniques such as easiest in which i have 2
phase easiest and dual easiest are used. Second way of optimal coordination program is using AI logic system such as genetic algorithm
(GA). In this paper, a new approach will be used for optimal coordination of OC relays based on genetic algorithm for consider the IEEE 9
bus system in which 3 generators,3 transformer and 9 bus we can use. In this work, we take into account time setting multiplier (TSM) and
plug setting multiplier (PSM) of OC relays in optimization procedure. In this paper present the IEEE 9 bus system simulate by using ETAP/
MATLAB coding with genetic optimized techniques the answers are taken into account as a part optimization procedure, so the outputs
are optimized TSM’s compare to the conventional method. In other words, the novelty of the paper is taking into account to TSM to handle
miscoordination problems. The results obtained are quite encouraging and optimized value will be useful as an effective tool for coordination
OC relays.
