Different Optimization Techniques For Solving the Coordination problem of DOCRs

The main function of Protective equipment is the provision of adequate level of network reliability and stability. In the electric system, directional overcurrent relays (DOCRs) are widely incorporated. The primary and decisive goal of DOCRs is to keep healthy sections in operation and disconnect only the fault part rapidly. This problem contains many boundaries, in which different single-objective algorithms are suggested. The relay settings are defined as the decision variables for this optimization problem. A grey wolf optimizer (GWO), an enhanced version of grey wolf optimizer (EGWO), a whale optimization algorithm, and hybrid whale-grey wolf optimizer (HWGO), Equilibrium Optimizer (EO), and Flow Direction Algorithm (FDA) are used to solve coordination problems as a single objective function. The effectiveness and feasibility of the suggested techniques are evaluated using different networks Also, they are compared with other methods.