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Application of the Firefly algorithm to optimal over-current relay coordination
2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM), 2014Optimization of over current relay settings is a major problem in protection of electrical power systems. This paper describes the Firefly algorithm for optimal time coordination of these relays. The algorithm has been implemented in MATLAB and tested on a radial system, as well as a single end fed system with a parallel feeder. The results obtained by
S. S. Gokhale, V. S. Kale
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Optimal coordination of over-current relays using modified differential evolution algorithms
Engineering Applications of Artificial Intelligence, 2010Optimization of directional over-current relay (DOCR) settings is an important problem in electrical engineering. The optimization model of the problem turns out to be non-linear and highly constrained in which two settings namely time dial setting (TDS) and plug setting (PS) of each relay are considered as decision variables; the sum of the operating ...
Radha Thangaraj, Millie Pant, Kusum Deep
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Protection of microgrid through coordinated directional over-current relays
2014 IEEE Global Humanitarian Technology Conference - South Asia Satellite (GHTC-SAS), 2014Microgrids integrate distributed energy resources to provide reliable, environment friendly and economic power to small/medium sized urban communities or to large rural areas. Due to the existence of generators at all levels of the distribution system and two distinct operating modes, i.e.
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Implementation of Directional Over-current Relay Coordination Approaches in Electrical Networks
Electric Power Components and Systems, 2015AbstractAs the smart grid concept is employed in the electric power system, network load flow and topology changes intensively to meet the best generation-demand balancing point. These changes must account for protection devices to enhance their performance.
Meng Yen Shih, Arturo Conde
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Non-adaptive over current relay coordination in distribution systems
2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2014Over current relay coordination in a meshed distribution system with multiple distributed renewable energy sources (RES) is a very challenging for the protection engineers. The exiting over current relays in the distribution system is set for some predefined network topology and fault currents.
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The Journal of Supercomputing, 2021
In this paper, the optimum coordination of over current relay in distribution system has been performed. The time dial setting (TDS) of over current relay is optimized by minimizing total operating time of relays. As the power system is a complex and highly interconnected, the complexity may be occurred in calculating optimum relay coordination time ...
Debasis Acharya, Dushmanta Kumar Das
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In this paper, the optimum coordination of over current relay in distribution system has been performed. The time dial setting (TDS) of over current relay is optimized by minimizing total operating time of relays. As the power system is a complex and highly interconnected, the complexity may be occurred in calculating optimum relay coordination time ...
Debasis Acharya, Dushmanta Kumar Das
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Journal of Computational Science, 2014
Abstract Growing interconnection in distribution system creates new problem for protection engineers. Particularly the design of overcurrent relay coordination in such system is an independent area of research. With the availability of new artificial based optimization algorithm relay coordination research gain a new momentum.
Manohar Singh +3 more
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Abstract Growing interconnection in distribution system creates new problem for protection engineers. Particularly the design of overcurrent relay coordination in such system is an independent area of research. With the availability of new artificial based optimization algorithm relay coordination research gain a new momentum.
Manohar Singh +3 more
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2020 IEEE 9th Power India International Conference (PIICON), 2020
In the presence of distributed generation (DG), the fault current through the relay in forward direction is higher as compared to reverse direction. Thus it is desirable to have dual setting directional over current relay (DOCR) which can operate for both forward and reverse direction of fault current with two independent relay settings.
Raghvendra Tiwari +2 more
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In the presence of distributed generation (DG), the fault current through the relay in forward direction is higher as compared to reverse direction. Thus it is desirable to have dual setting directional over current relay (DOCR) which can operate for both forward and reverse direction of fault current with two independent relay settings.
Raghvendra Tiwari +2 more
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Optimal Coordination of Over-current Relay Using Particle Swarm Optimization (PSO) Algorithm
2020 IEEE Applied Signal Processing Conference (ASPCON), 2020In the distribution network of power system, for protection of electrical systems the coordination of over-current (OC) relays is most essential for primary as well as secondary relay protection. In fault condition, it is required to minimize the total operating time of relay. Therefor, it can reduce the damage occurs in the system.
Pankaj Kumar Choudhary +1 more
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Effect of fault location on optimal coordination of directional over current relay
TENCON 2008 - 2008 IEEE Region 10 Conference, 2008The objective of optimal relay coordination in interconnected power system is to achieve selectivity without sacrificing sensitivity & fast fault clearance time. This paper presents the effect of fault location on the flow of current direction & optimal coordination of directional over current relay. In this coordination problem Time Dial Setting (TDS)
Chetan Aggarwal +2 more
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