Results 11 to 20 of about 235,466 (206)
Optimal Coordination of Directional Overcurrent Relays Using PSO-TVAC Considering Series Compensation [PDF]
Advances in Electrical and Electronic Engineering, 2015 The integration of system compensation such as Series Compensator (SC) into the transmission line makes the coordination of directional overcurrent in a practical power system important and complex.
Nabil Mancer +2 more
doaj +2 more sources
International Journal of Electrical Power & Energy SystemsThe optimal setting of directional overcurrent relays ensures the reliable protection and fast fault clearance of radial distribution networks. However, the increasing proliferation of inverter-based distributed energy resources can result in protection ...
Jie Li +4 more
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Optimal Adjustment of Dualsetting Overcurrent Relays in Inverter-Based Microgrids [PDF]
Iranian Journal of Electrical and Electronic Engineering, 2023 Increasing the penetration of distributed generation (DG) systems in power systems has many advantages, but it also has problems, including interference with the proper functioning of the protection systems.
Seyed Masoud Barakati, Farzad Tahmasebi
doaj +1 more source
Coordination of directional overcurrent relays using a novel method to select their settings
IET Generation, Transmission & Distribution, 2011 This study presents a new method to select the settings of directional overcurrent relays. First, a new selection criterion of pickup currents is adopted. It results in discrete pickup current values, which mitigate the selectivity constraints effect on the minimisation of time multiplier settings.
Ezzeddine, Mazhar +2 more
openaire +4 more sources
Journal of Cloud Computing: Advances, Systems and ApplicationsThe effective functioning and regulation of power systems crucially rely on the coordination of distance and directional overcurrent relays. Accurate fault detection and successful clearing sequences require support for each relay and the maintenance of ...
Mohammadreza Aminian +2 more
doaj +2 more sources
Iranian Journal of Electrical and Electronic Engineering, 2015 Most studies in relay coordination have focused solely on coordination of overcurrent relays while distance relays are used as the main protection of transmission lines.
Y. Damchi, J. Sadeh, H. Rajabi Mashhadi
doaj +1 more source
Hybridized Symbiotic Organism Search Algorithm for the Optimal Operation of Directional Overcurrent Relays [PDF]
Complexity, 2018 This paper presents the solution of directional overcurrent relay (DOCR) problems using Simulated Annealing based Symbiotic Organism Search (SASOS). The objective function of the problem is to minimize the sum of the operating times of all primary relays.
Muhammad Sulaiman +3 more
doaj +2 more sources
Optimum Time Coordination of Directional Overcurrent Relays Using CVX, GAMS and Genetic Algorithm
, 2020 This paper proposes new optimization techniques to obtain optimal values of Time Multiplier Setting (TMS) for directional overcurrent relays (DOCRs) in a protection scheme.
Pillai, Gobind +3 more
core +7 more sources
Iranian Journal of Electrical and Electronic Engineering, 2015 The aim of the relay coordination is that protection systems detect and isolate the faulted part as fast and selective as possible. On the other hand, in order to reduce the fault clearing time, distance protection relays are usually equipped with pilot ...
Y. Damchi, J. Sadeh, H. Rajabi Mashhadi
doaj +1 more source
Energies, 2021 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.
Muhammad Irfan +6 more
doaj +1 more source