Results 41 to 50 of about 235,466 (206)
Optimal Coordination of Directional Overcurrent Relays Using Artificial Ecosystem-Based Optimization [PDF]
, 2021 Optimal directional overcurrent relays (DOCRs) coordination aims to find the optimal relay settings in order to protect the system, where, the primary relays are operated in the first to clear the faults, then the corresponding backup relays should be ...
Bakir, H. +5 more
core +1 more source
Energy Science &Engineering, Volume 14, Issue 8, Page 3948-3973, August 2026.By manipulating current and voltage measurements, an assailant can induce unwanted relay action while attempting to avoid detection. Detecting advanced cyber intrusions in power protection environments requires specialised data analysis and anomaly detection methods.
Feras Alasali +6 more
wiley +1 more source
Busbar Fault Direction Identification Using Sequences of Displacement Vectors
Engineering Reports, Volume 8, Issue 2, February 2026.In this paper, a novel busbar fault direction identification scheme is presented. The proposed scheme is based on sequences of displacement vectors. The proposed algorithm is fast and simple enough to be embedded in a differential relay to assist the percentage‐restraint differential algorithm.
Mostafa Sarlak
wiley +1 more source
, 2011 Distributed generators (DGs) are defined as generators that are connected to a distribution network. The direction of the power flow and short-circuit current in a network could be changed compared with one without DGs.
Ledwich, Gerard, Wen, Fushuan, Yang, Hui
core +1 more source
Directional Overcurrent Relays Coordination Problems in Distributed Generation Systems
Energies, 2017 This paper proposes a new approach to the distributed generation system protection coordination based on directional overcurrent protections with inverse-time characteristics.
Jakub Ehrenberger, Jan Švec
doaj +1 more source
Journal of Electrical and Computer Engineering, 2020 The flexible operation of microgrids, along with the availability of distributed generation (DG) units, causes a variety of changes in short-circuit current levels, magnitudes, and directions, which has undesirable effects on the operation of protection ...
Panida Thararak, Peerapol Jirapong
doaj +1 more source
Microgrid Protection through Adaptive Overcurrent Relay Coordination
Electricity, 2021 The inclusion of distributed energy resources (DER) in Microgrids (MGs) comes at the expense of increased changes in current direction and magnitude.
Haneen Bawayan, Mohamed Younis
doaj +1 more source
Energy Science &Engineering, Volume 14, Issue 1, Page 377-398, January 2026.Standard and proposed non‐standard OCR characteristics. ABSTRACT This study introduces an advanced adaptive protection approach for AC power systems, designed to address key limitations in current clustering‐based relay coordination methods. Using K‐means, hierarchical, and spectral clustering techniques, the proposed scheme classifies grid operating ...
Feras Alasali +6 more
wiley +1 more source
Optimal Coordination of Directional Overcurrent Relays Using Bacteria Foraging Algorithm [PDF]
, 2016 557-561Optimal setting in relay coordination of Directional overcurrent relay (DOCR) is a major challenge for protection engineers. This paper throws light on the application of Bacteria Foraging Algorithm (BFA) in solving problems related to ...
Sinha, N, Adhikari, S
core
An optimal coordination of directional overcurrent relays using a Gorilla troops optimizer
, 2023 The optimization of coordination of directional overcurrent relays in an interconnected power system is given in this work. The goal of protective relay coordination is to achieve selectivity while maintaining sensitivity and a fast fault clearing time ...
Kheldoun, Aissa +5 more
core +1 more source