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Adaptive over current relay coordination algorithm for changing short circuit fault levels
2015 IEEE Innovative Smart Grid Technologies - Asia (ISGT ASIA), 2015Fault levels are continuously changing in the electric networks due to change in the network impendences and configurations. These changes causes maloperation of the over current relays. An over current relay coordination algorithm is proposed in this paper, which utilizes adaptive fuzzy technique to select the optimal relay settings.
Manohar Singh, Vishnuvardhan Telukunta
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Application of linear programming for optimal coordination of directional over-current relays
2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2012In this paper presents an algorithm for directional over-current relay coordination based on linear programming. The relays are configured by adjusting time dial setting (TDS) of function properly in normal and fault conditions. The TDS adjustment is performed by using linear programming.
Supawatchara Niyomphant +3 more
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A New Objective Function for Optimal Coordination of Directional Over-current Relays
2020This paper presents a novel objective function to obtain the optimum relay settings of directional over-current relays (DOCRs). The proposed improved objective function (IOF) is developed to solve the problems of previously proposed OFs. The proposed research work modifies the previous OFs by introducing a new weighting factor and adding a new term ...
Jay Shah +3 more
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Optimal over-current relay coordination in distribution network using grew wolf optimization
International Journal of Emerging Electric Power SystemsAbstract This paper introduces a novel approach to address the optimal coordination of directional overcurrent relays (DOCRs) in modern power distribution networks. By utilizing the different optimization methods such as genetic algorithm (GA), particle swarm optimization (PSO), pattern search (PS), grey wolf optimization (GWO), the ...
Shanti S. Rath +4 more
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Optimal Coordination of Directional Over Current Relays in Power System Using Genetic Algorithm
Proceedings of the 41st International Universities Power Engineering Conference, 2006In this paper a new approach will be used for optimal coordination of directional over current (DOC) relays based on genetic algorithm. In this approach, optimal operation characteristics and also optimal current setting and time setting of each OC relays will be determined simultaneously.
F. Kavehnia +3 more
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Use of genetic algorithms (GA) for optimal coordination of directional over current relays
2012 Students Conference on Engineering and Systems, 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, Shubhrata Gupta
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A new hybrid particle swarm optimization for optimal coordination of over current relay
2010 International Conference on Power System Technology, 2010Directional over current relays (DOCRs) coordination problem is a nonlinear and nonconvex problem which has many constraints. Optimal coordination of over current relays has been usually solved using linear and nonlinear programming. Also genetic algorithm and particle swarm optimization methods are used to fined the optimal solution of the problem. In
M. Bashir +3 more
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Short Circuit Analysis & Over current Relaying Coordination of IEEE 9-Bus System
2018 5th International Multi-Topic ICT Conference (IMTIC), 2018It is an essential and compulsory to design an empty interrupted electrical power system network having security, stability and reliability in this electricity dependent era. In this paper Short circuit analysis and Protection relying coordination of IEEE 9-Bus system is analyzed and designing of overcurrent relaying scheme to operate the relay quickly
Shoaib A. Shaikh +4 more
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Optimal Coordination of Over-current Relay Using KHO-KHO Algorithm
2023 5th International Conference on Energy, Power and Environment: Towards Flexible Green Energy Technologies (ICEPE), 2023Pankaj Kumar Choudhary +1 more
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Optimal Coordination of Directional Over Current Relay Using Analytical and Swarm Algorithms
2023 International Conference for Advancement in Technology (ICONAT), 2023Animesh Karmakar +3 more
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