Results 31 to 40 of about 235,466 (206)
Journal of Modern Power Systems and Clean Energy, 2021 The optimal setting of directional overcurrent relays (DOCRs) ensures the fault detection and clearing in the minimum possible operation time. Directional protective relaying is carried out to coordinate relay settings in a meshed network in the presence
Pegah Alaee, Turaj Amraee
doaj +1 more source
New Overcurrent Relay Coordination Method Through Time Intervals to Enhance Microgrid Protection
IEEE Access, 2021 This paper presents a method to protect microgrids (MGs) through coordination of directional overcurrent relays (DOCRs). The new formulation is subjected to restrictions of pre-established time intervals to guarantee the primary and backup functions of ...
Yendry Gonzalez, Arturo Conde
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Alexandria Engineering Journal, 2021 This paper presents a new hybrid algorithm of Harris hawks’ optimization with sequential quadratic programming (HHO-SQP) for optimal coordination of directional overcurrent relays to find optimal relays settings.
Salah K. ElSayed, Ehab E. Elattar
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A Distribution Line Protection Scheme for Network with Distributed Generation
Jurnal Nasional Teknik Elektro, 2021 Installation of distributed generations (DGs) can cause performance degradation of distribution lines protection. Therefore, the objective of this paper is to propose a protection scheme that can be a solution for this protection line degradation..
Adrianti Adrianti +2 more
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A New Protection Strategy for Microgrid based on Integration of Active Power Index and Fault Current Differential Energy [PDF]
International Journal of Industrial Electronics, Control and OptimizationThe utilization of distributed generation (DG) sources in distribution systems has experienced significant growth due to their numerous advantages. Despite benefits such as voltage support and reduced losses, DG integration has introduced substantial ...
Reza Karimi +2 more
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Optimal Coordination of Directional Overcurrent Relays Using Hybrid Firefly–Genetic Algorithm
Energies, 2023 The application of directional overcurrent relays (DOCRs) plays an important role in protecting power systems and ensuring their safe, reliable, and efficient operation.
Tareq Foqha +6 more
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High Voltage, EarlyView.ABSTRACT Amid the ongoing global energy transition, the short‐circuit ratios of AC power grids are continuously decreasing. Grid‐forming voltage source converter‐based high voltage direct current transmission (GFM VSC‐HVDC) systems have therefore come to the forefront of attention.
Cheng Peng +7 more
wiley +1 more source
Hybridization of PSO for the Optimal Coordination of Directional Overcurrent Protection Relays
, 2022 In the electrical power system, the coordination of directional overcurrent protection relays (DOPR) plays a preeminent role in protecting the electrical power system with the help of primary and back up protection to keep the system vigorous and to ...
Abdul Wadood +5 more
core +1 more source
IET Generation, Transmission & Distribution, 2023 Here, an improved version of an African vultures optimization algorithm (AVOA), known as MAVOA is applied to solve the coordination issue between distance relays and directional overcurrent relays (DOCRs).
Ahmed Korashy +3 more
doaj +1 more source
Vector: The Journal of Engineering, Volume 2027, Issue 1, January/December 2027.Modelling relay coordination problem via sinusoidal, quadratic or polynomial penalty functions; metaheuristic penalty based‐discrete particle swarm optimization covering both time and instantaneous overcurrent units; dedicated program developed in C++ programming language to a real equivalent circuit.
Arthur Gomes de Souza +1 more
wiley +1 more source