Evaluating the Effect of the Communication Link of the Relays on the Operation Time of the Protection System

Aliakbar Azari, Abass Saberi Noghabi, Farhad Zishan, Oscar Danilo Montoya () and Alexander Molina-Cabrera
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Aliakbar Azari: Department of Electrical Engineering, University of Birjand, Birjand 97174-34765, Iran
Abass Saberi Noghabi: Department of Electrical Engineering, University of Birjand, Birjand 97174-34765, Iran
Farhad Zishan: Department of Electrical Engineering, Sahand University of Technology, Tabriz 51335-1996, Iran
Oscar Danilo Montoya: Grupo de Compatibilidad e Interferencia Electromagnética (GCEM), Facultad de Ingeniería, Universidad Distrital Francisco José de Caldas, Bogotá D.C 110231, Colombia
Alexander Molina-Cabrera: Grupo de Campos Electromagnéticos y Fenómenos Energéticos, Facultad de Ingenierías, Universidad Tecnológica de Pereira, Pereira 660003, Colombia

Energies, 2023, vol. 16, issue 6, 1-17

Abstract: In case of an error in the power system, it is the duty of the protection relays to isolate the faulty part from the rest of the system as soon as possible. Overcurrent and distance relays are usually used to protect the transmission and super distribution systems. The optimum coordination of these relays is very important. In this article, communication links are used to improve the optimal coordination of overcurrent and distance relays. In the proposed plan, the overcurrent relays on both sides of the line are equipped with a communication link for immediate action in the event of an error. Using this communication link, the complete coverage of the line is also provided by distance relays. The number and place of installation of the communication link greatly affect the operation time of overcurrent relays and the distance and coordination between them. The coordination problem is formulated by considering the location and number of communication links, and to solve it, the combined optimization algorithm of genetics and linear programming will be used. With the help of the genetic algorithm, the location and setting of the second zone of the distance relay, and by using the linear programming algorithm, the setting of the overcurrent relays is determined. The proposed method has been tested on the IEEE 14-bus (the simulation in MATLAB software) network and its results examined, and it will be seen how much the existence of a communication link can improve the performance time of the protection system.

Keywords: overcurrent relays; distance relays; communication link; optimal coordination (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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