Performance Analysis of Different Optimization Algorithms on Overcurrent Relay Coordination Problem in Distribution Systems

2021 ◽  
Author(s):  
Mert Bekir Atsever ◽  
Ozgur Karacasu ◽  
Mehmet Hakan Hocaoglu
Keyword(s):  
Performance Analysis ◽  
Distribution Systems ◽  
Optimization Algorithms ◽  
Coordination Problem ◽  
Relay Coordination ◽  
Overcurrent Relay

scholarly journals An Optimized Adaptive Protection Scheme for Numerical and Directional Overcurrent Relay Coordination Using Harris Hawk Optimization

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5603
Author(s):  
Muhammad Irfan ◽  
Abdul Wadood ◽  
Tahir Khurshaid ◽  
Bakht Muhammad Khan ◽  
Ki-Chai Kim ◽  
...  
Keyword(s):  
Optimization Problem ◽  
Operating Time ◽  
Global Optimum ◽  
Electrical Network ◽  
Coordination Problem ◽  
Protection Scheme ◽  
Decision Variables ◽  
Impressive Result ◽  
Relay Coordination ◽  
Overcurrent Relay

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. Meanwhile a relay protection optimization problem is highly constraint and complicated problem to be addressed. To fulfill this purpose, Harris Hawk Optimization (HHO) is adapted to solve the optimization problem for Directional Over-current Relays (DOCRs) and numerical relays. As it is inspired by the intelligent and collegial chasing and preying behavior of hawks for capturing the prey, it shows quite an impressive result for finding the global optimum values. Two decision variables; Time Dial Settings (TDS) and Plug Settings (PS) are chosen as the decision variables for minimization of overall operating time of relays. The proposed algorithm is implemented on three IEEE test systems. In comparison to other state-of-the-art nature inspired and traditional algorithms, the results demonstrate the superiority of HHO.

Sympathetic Trippings Blocking in Over Current Relay Coordination Algorithm during Steady State & Transient Network Topologies

2016 ◽  
Vol 17 (3) ◽  
pp. 311-326 ◽  
Author(s):  
Manohar Singh ◽  
B.K. Panigrahi ◽  
T. Vishnuvardhan
Keyword(s):  
Distribution System ◽  
Search Algorithm ◽  
Operating Time ◽  
Network Configuration ◽  
Coordination Problem ◽  
Relay Coordination ◽  
Network Topologies ◽  
Time Gap ◽  
Transient Network ◽  
Nuisance Tripping

Abstract In this paper an improved over current relay coordination protection technique is proposed. The proposed technique eliminates the sympathetic/nuisance tripping in an interconnected distribution system. Nuisance trippings are eliminated by incorporating the additional selectivity constraints in conventional over current relay coordination problem. Whenever the fault is cleared only from one end of the line in bidirectional fault feed lines, transient network configuration comes into existence. Transient network configuration causes the redistribution of fault in the distribution system and leads to further nuisance tripping of relays. This problem in this paper is solved by minimising the operating time gap between primary relays located at near end and far end of a faulty line to the best minimum possible value. The differential search algorithm is applied for optimization of highly non-linear over current relay coordination problem in this paper. The result presented in this paper shows that the proposed over current relay coordination technique is immune against the sympathetic/nuisance tripping and operating time difference between primary relays at near end and far end is also minimised within acceptable time margin successfully.

Directional overcurrent relay coordination by means of genetic algorithms of Chu-Beasley

2018 ◽  
Vol 13 (4) ◽  
pp. 522-528 ◽  
Author(s):  
Gina Idarraga-Ospina ◽  
Noe A. Mesa-Quintero ◽  
Jaime A. Valencia ◽  
Alberto Cavazos ◽  
Eduardo Orduna
Keyword(s):  
Genetic Algorithms ◽  
Relay Coordination ◽  
Overcurrent Relay
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