Hybrid mixed-integer non-linear programming approach for directional over-current relay coordination [PDF]
The Journal of Engineering, 2019 This article proposes the optimal coordination problem of protective relays within a hybrid optimisation framework which is presented based on integer coded genetic algorithm (ICGA) and non-linear programming (NLP).
Mohammad Sadegh Javadi +4 more
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Optimal Coordination of Over-Current Relays in Microgrids Using Unsupervised Learning Techniques [PDF]
Applied Sciences, 2021 Microgrids constitute complex systems that integrate distributed generation (DG) and feature different operational modes. The optimal coordination of directional over-current relays (DOCRs) in microgrids is a challenging task, especially if topology ...
Sergio D. Saldarriaga-Zuluaga +2 more
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Optimal coordination of over-current relays in microgrids considering multiple characteristic curves
Alexandria Engineering Journal, 2021 Nowadays, microgrids play a significant role in the development of modern distribution networks (DNs). In this context, the ever increasing presence of renewable distributed generation (DG) in microgrids has imposed new challenges in protection ...
Sergio D. Saldarriaga-Zuluaga +2 more
doaj +2 more sources
Improved Over Current Relay (OCR) Coordination Using Time Multiple Setting (TMS) [PDF]
MATEC Web of ConferencesProper coordination between overcurrent relay (OCR) is needed to improve the reliability of the power distribution system. By choosing the proper time multiple setting (TMS), an optimum setting of OCR coordination can be achieved.
Prasetijo Hari, Fadli Ari, Renaldi Feby
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Adaptive protection coordination scheme in microgrids using directional over-current relays with non-standard characteristics [PDF]
Heliyon, 2021 Protection coordination of AC microgrids (MGs) is a challenging task since they can operate either in grid-connected or islanded mode which drastically modifies the fault currents.
Sergio D. Saldarriaga-Zuluaga +2 more
doaj +3 more sources
Comparative study of heuristic algorithms for coordination of industrial over current relays with nonstandard characteristics in microgrid protection [PDF]
Scientific ReportsThe traditional methods for over-current relay coordination (OCR) may not be adequate to ensure consistent and dependable operation of microgrid (MG), in its various operating modes.
Ekta Gairola +4 more
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Over Current Relay Coordination System Considering Distributed Generation
Journal of Emerging Supply Chain, Clean Energy, and Process Engineering, 2022 Today, electricity is one of the important components to drive the industrial process and other daily human activities. While the continuity of power supply through the power system grid is impressionable from disturbances such as a short circuit. In addition, the rapid development of distributed generation (DG) technology triggers the industry to use ...
Teguh Aryo Nugroho +5 more
openaire +1 more source
Energy Reports, 2021 The protection system has a vital role in subsystems of the power network including the generation, transmission and distribution system. This system combines several types of protection relays including directional over current relay, differential relay,
Yasir Muhammad +8 more
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Overcurrent Relays Coordination Considering Transient Stability Study of Induction Generator Using a Method Based on Terminal Voltage [PDF]
International Journal of Research and Technology in Electrical Industry, 2022 Nowadays, with increasing penetration of Induction Generators (IG) in the electricity grid, it is of great importance that IG be connected to the grid in the fault conditions.
AmirHossein Taheri Jam +4 more
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IEEE Access, 2022 Nowadays, the Overcurrent (OC) and Earth Fault (EF) relays coordination problem is one of the most complex and challenging concerns of power protection and network operators due to the high and volatile generation capacity of renewable energy sources in ...
Feras Alasali +6 more
doaj +1 more source