Online coordination of directional overcurrent relays using binary integer programming
Electric Power Systems Research, 2015Abstract This work presents a binary programming model for online coordination of directional overcurrent relay problems in interconnected power distribution and subtransmission systems. The proposed model considers discrete time dial and pickup current settings as in microprocessor-based relays.
Rafael Corrêa +3 more
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Modified water cycle algorithm for optimal direction overcurrent relays coordination
Applied Soft Computing, 2019Abstract The optimization model of Directional Over Current Relays (DOCRs) coordination is considered non-linear optimization problem with a large number of operating constraints. This paper proposes a modified version for Water Cycle Algorithm (WCA), referred to as MWCA to effectively solve the optimal coordination problem of DOCRs. The main goal is
Ahmed Korashy +3 more
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Optimum Coordination of Directional Overcurrent Relay using Genetic Algorithm Technique
2017 International Conference on Current Trends in Computer, Electrical, Electronics and Communication (CTCEEC), 2017This paper presents genetic algorithm (GA) method for coordination of overcurrent (OC) relays for the protection of ring connected system from sudden built up of current occurring due to shunt faults. Overcurrent relays preeminently IDMT (Inverse Definite Minimum Time) relays are preferably used and are major protective device in the distribution ...
Sumit U Pathade, Amol A Kalage
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Application of Random Search Technique in Directional Overcurrent Relay Coordination
International Journal of Emerging Electric Power Systems, 2006Recently, using a non-linear programming method authors have demonstrated that based on certain criteria if some non-significant selectivity constraints are relaxed, all remaining constraints happen to be feasible but the solution of coordination problem is not possible with the conventional objective function as optimization procedure leaves the ...
Dinesh Birla +4 more
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Optimal coordination of directional overcurrent relays: A genetic algorithm approach
2012 IEEE Students' Conference on Electrical, Electronics and Computer Science, 2012In this paper, the optimization of coordination of directional overcurrent relays in an interconnected power system is presented. The objective of protective relay coordination is to achieve selectivity without sacrificing sensitivity and quick fault clearance time.
Dharmendra Kumar Singh, S. Gupta
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Enhanced differential evolution algorithm for coordination of directional overcurrent relays
Electric Power Systems Research, 2017Abstract This paper presents an enhanced differential evolution algorithm (DE) for solving the directional overcurrent relay (DOCR) coordination problem. Comparisons among different versions of DE for coordination of DOCRs in larger and interconnected power systems are presented.
Meng Yen Shih +3 more
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Optimal coordination of directional overcurrent relays in interconnected power systems
IEEE Transactions on Power Delivery, 1988The authors present a new methodology based upon the principles of optimization theory, to treat the problem of optimal coordination of directional overcurrent relays in interconnected power systems. With the application of the proposed technique, this coordination problem is stated as a parameter optimization problem, which in general, is of a large ...
A.J. Urdaneta +2 more
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Directional overcurrent relay coordination optimization
2023Meng Yen Shih +3 more
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Optimal Coordination of Directional Overcurrent Relay Using Coyote optimization Algorithm
2022 IEEE International Conference on Automation/XXV Congress of the Chilean Association of Automatic Control (ICA-ACCA), 2022Ali Selim +3 more
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Alloying of Cu with Ru Enabling the Relay Catalysis for Reduction of Nitrate to Ammonia
Advanced Materials, 2023Wensheng Gao, Can Li
exaly