10.14489/td.2020.01.pp.030-037

2020, 01 January

DOI: 10.14489/td.2020.01.pp.030-037

Shilin A. N., Shilin A. A., Dikarev P. V., Ahmedova O. O.
INTELLIGENT RELAY PROTECTION
(pp. 30-37)

Abstract. Currently, with the introduction of electrical smart grids, one of the main problems is increasing the authenticity of turning on the relay protection devices during emergency modes. This is due to the fact that the short circuit current, and therefore setpoint, is affected by large number of external factors, such as the humidity of the earth and the atmosphere, external environment temperature, soil state, terrain, etc. Therefore, the relay protection devices must to take account of the influence of these factors and to introduce automatic correction for the setpoint current, i.e. the device must be intelligent. For solution this problem, the intelligent device was developed, containing a microprocessor and a set of sensors of physical quantities of external factors. A more accurate calculation of the relay protection parameters will allow to increase a sensitivity and to avoid the failures of turning on or false turning on of protection. The results of the research can be applied to create a multidimensional mathematical model allowing automatic to select the relay protection settings based of the initial data on weather conditions, time of year, resistance of the soil, current, voltage, etc.

Keywords: relay protection, control, smart grids, automatic turning on, power supply, intelligent systems, power system.

+ - About the Authors Click to collapse

A. N. Shilin, A. A. Shilin, P. V. Dikarev, O. O. Ahmedova (Volgograd State Technical University, Volgograd, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Gvozdev D. B. Problems and prospects for the development of relay protection and automation of the power grid complex. Presentations of reports of the 5th international scientific and technical conference. "Modern trends in the development of relay protection systems and automation of power systems." Plenary session. Available at: http://www.cigre.ru/activity/conference/relayprotect5/materials/03_Gvozdev_DB_RZA_2015_Rosseti.pdf (Accessed 14.07.2019). [in Russian language]
2. Ahmedova O. O. (2016). Analysis of errors in the operation of relay protection systems in the energy sector. Energo- i resursosberezhenie: promyshlennost' i transport, 15, pp. 19 – 22. [in Russian language]
3. Dikarev P. V., Ahmedova O. O. (2018). Relay protection: state, problems, development prospects. Energo- i resursosberezhenie: promyshlennost' i transport, 25(4), pp. 10 – 13. [in Russian language]
4. Anishchenko V. A. (2001). Reliability of power supply systems: textbook. Minsk: UP «Tekhnoprint». [in Russian language]
5. Sapunkov M. L., Hudyakov A. A. Device for current protection of electric networks from single-phase earth faults (options). Ru Patent No. 2422964. Russian Federation. [in Russian language]
6. Evdokunin G. A., Gudilin S. V., Korepanov A. A. (1998). The choice of neutral grounding method in 6-10 kV networks. Elektrichestvo, (12), pp. 8 – 22. [in Russian language]
7. Lomonosov V. Yu. (Ed.), Ryudenberg R. (1955). Transients in power systems. Moscow: Izdatel'stvo inostrannoy literatury. [in Russian language]
8. Margolin N. F. (1937). Resistance of overhead transmission lines. Moscow: Mosoblpoligraf. [in Russian language]
9. Kryuchkov I. P. (Ed.), Starshinov V. A., Gusev Yu. P. et al. (2012). Short circuits and the choice of electrical equipment: a textbook for universities. Moscow: Izdatel'skiy dom MEI. [in Russian language]
10. Golubev M. L. (1980). Calculation of short circuit currents in electric networks 0.4 - 35 kV. 2nd ed. Moscow: Energiya. [in Russian language]
11. Sihvola A. H. (1999). Electromagnetic mixing formula sand applications. London: IEE Press.
12. Matzler C. (1996). Microwave permittivity of dry snow. IEEE. Transactions on Geoscienceand Remote Sensing, Vol. 34, (2), pp. 573 – 581.

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

The cost of a single article is 350 rubles. (including VAT 18%). After you place an order within a few days, you will receive following documents to your specified e-mail: account on payment and receipt to pay in the bank.

After depositing your payment on our bank account we send you file of the article by e-mail.

To order articles please copy the article doi:

10.14489/td.2020.01.pp.030-037

and fill out the form