An Optimized Adaptive Protection Scheme for Numerical and Directional Overcurrent Relay Coordination Using Harris Hawk Optimization

Abstract

The relay coordination problem is of dire importance as it is critical to isolate the faulty portion in a timely way and thus ensure electrical network security and reliability. Meanwhile a relay protection optimization problem is highly constraint and complicated problem to be addressed. To fulfill this purpose, Harris Hawk Optimization (HHO) is adapted to solve the optimization problem for Directional Over-current Relays (DOCRs) and numerical relays. As it is inspired by the intelligent and collegial chasing and preying behavior of hawks for capturing the prey, it shows quite an impressive result for finding the global optimum values. Two decision variables; Time Dial Settings (TDS) and Plug Settings (PS) are chosen as the decision variables for minimization of overall operating time of relays. The proposed algorithm is implemented on three IEEE test systems. In comparison to other state-of-the-art nature inspired and traditional algorithms, the results demonstrate the superiority of HHO.

A hybrid metaheuristic algorithm for the multi-objective location-routing problem in the early post-disaster stage

“…Equation (11) means that the distribution center cannot dispatch vehicles if it is not selected. Equation (12) means that there must be a vehicle dispatched from the distribution center and pass through the demand point if the demand point is served by the distribution center. Equation ( 13) is used to prevent the creation of sub-tour.…”

“…He used the improved HHO as a metaheuristic tool for the threshold segmentation method of brain magnetic resonance images. Irfan [12] adapted HHO to solve the optimization problem for directional over-current relays and numerical relays. Piri [28] introduced HHO to solve the multi-target optimization problem of feature selection.…”

Optimal Allocation of Directional Relay for Efficient Energy Optimization in a Radial Distribution System

“…Recently, heuristic algorithm methods have excited serious enthusiasm due to their adaptability, flexibility, and strength in looking for an ideal and global optimum solution [32]. Due to the way that GA is a multipoint seeking technique, as opposed to the conventional single point search methods, GA guarantees reaching the ideal and global optimum point [33]. In CGA, the factors and variables are denoted by floating point numbers.…”

Hybridization of PSO for the Optimal Coordination of Directional Overcurrent Protection Relays

“…In order to analyze the fault as early as possible, coordination of the protection relay along with configuration is an important aspect. Earlier, different methods were used to obtain the overcurrent protection relay configuration [2], and different optimization techniques were deployed to solve various electrical engineering and relay coordination problems [3][4][5][6]. Linear programming was used for the relay coordination in order to obtain the optimal time multiplier setting (TMS) for the relays [7].…”