Political Optimization Algorithm for Optimal Coordination of Directional Overcurrent Relays

摘要

In this paper, the political optimization (PO) algorithm is applied to coordinate the directional overcurrent relays (DOCRs). Optimal coordination of DOCRs that used for protecting electrical networks is a nonlinear constrained optimization problem. The PO algorithm is duplicating five main phases of politics from the population which is divided into parties and constituencies until updating their position depending on the party leader addition to the constituency winner. The primary target of this paper is to apply PO algorithm to coordinate DOCRs to minimize the total uptime utilized in four test systems including eight-Bus, nine-Bus, and fifteen-Bus systems. The results of the proposed algorithm have been contrasted with other well-known algorithms. The simulation outcomes exhibited the significance and viability of the proposed algorithm in finding the ideal coordination of DOCRs by minimizing the overall operating time of the relays.