

Assessment of electric energy transport reliability (as exemplified by JSC "Rosseti Siberia Tyvaenergo" power networks)
https://doi.org/10.24223/1999-5555-2023-16-2-64-72
Abstract
Analysis of electric energy transport by power distribution networks of JSC Tyvaenergo over the period of 2017 – 2022 has been carried out. The structure of the company is considered, the characteristics of the main elements of the studied electric networks are given, the balance of the transmission of electric energy in and out of the company's networks is estimated. Based on the information published in open sources on the rate of accidents in the company's electrical networks, an estimate has been made of the number of emergency situations that occurred during the period under study. The duration of interruptions of power supply to consumers, as well as the amount of undersupply of electric energy caused by those interruptions, has been estimated. The influence of the seasonal component on the number of emergencies during the period under study is considered. Based on the data for the last quarter of 2022, analysis of the main causes of damage to elements of electrical networks has been carried out. The classification of failures is made, their main characteristics for this period are considered. The percentage ratio of the number of failures for the most characteristic reasons to the total number of outages during the period under study has been established. A technical tool is proposed to improve the reliability in conditions of unbalanced power consumption. General scientific methods, numerical methods of analysis, methods of the theory of electrical circuits were used in the research. To visualize the results of the analysis, the technologies of the MATLAB graphics editor were used. The results obtained may be of interest to the heads of power grid companies, as well as researchers and engineers engaged in research in the field of reliability of power supply.
About the Author
I. V. NaumovRussian Federation
664074, Irkutsk, 83 Lermontov str.;
664038, Irkutsk district, village Youth 1/1
References
1. Kirillov V. Wear of the electric grid infrastructure in Russia. Scales and Prospects / ENERGY: ECONOMICS, TECHNOLOGY, ECOLOGY 2018; 5: 53 – 57.
2. Latypov I. S., Sushkov V. V., Timoshkin V. V. Evaluation of mechanical loads on wires of various cross-section shapes of voltage class 6 – 35 kV. Proceedings of Tomsk Polytechnic University. Georesource engineering 2018; (329); 5: 6 – 14.
3. Paul Masache, Diego Carrión and Jorge Cárdenas. Optimal Transmission Line Switching to Improve the Reliability of the Power System Considering AC Power Flows. Energies 2021; 14(11): 1 – 17. https://doi.org/10.3390/en14113281.
4. Morteza Abbasghorbani, Yaser Damchi and Habib Rajabi Mashhadi. Reliability-Centered Maintenance for Overhead Transmission Lines in Composite Power System. Hindawi. International Transactions on Electrical Energy Systems 2022; Article ID 1170269: 1-11. https://doi.org/10.1155/2022/1170269
5. Novozhilov E. O. Normalization of the number of failures of a complex object using a multinomial distribution. Reliability, 2023; 23(1): 4 – 12
6. Naumov I. V., Karpova E. N. Analysis of the causes of damage to 10 kV distribution electric networks (On the example of the Southern electric networks of Irkutsk) / Reliability and safety of Energy 2018; 11(4): 299 – 304.
7. Naumov I. V., Karpova E. V., Karamov D. N. Reliability level research in distribution electrical networks of Irkutsk. E3SWeb of Conferences 114, 03005(2019)/ Energy Systems Research.https://doi.org/10.1051/e3sconf/20191140 201 E3S 114, pp.1 – 4.
8. Naumov I. V., Leshchinskaya T. B. Analysis of the functioning of the electric networks of the Irkutsk Electric Grid Company. Reliability and safety of energy 2022; 15 (1): 12 – 22.
9. Rosseti Siberia Tyvaenergo. Specifications. [electronic resource]. Access mode: https://www.tuvaenergo.ru/about/harakteristiki.php (date of application: 02/26/2023).
10. Rosseti Siberia Tyvaenergo. Disclosure of information. [electronic resource]. Access mode: https://www.tuvaenergo.ru/about/outinf.php (date of application: 02/26/2023).
11. Settlements of Tyva. [electronic resource]. Access mode: https://ru.wikipedia.org/wiki / (accessed: 02/26/2023).
12. Population in Tyva. [electronic resource]. Access mode: https://gogov.ru/population-ru/tva (accessed: 02/26/2023).
13. Information about the technical condition of the networks. [electronic resource]. Access mode: https://www.tuvaenergo.ru/about/nstat.php (dates of application: 01.02.2023 – 04.03.2023).
14. Naumov I. V. On the issue of managing asymmetric modes of operation of 0.38 kV distribution electric networks / Industrial Power Engineering 2022; 5: 2 – 14.
15. Naumov I. V., Fedorinovа E. S., Yakupova M. A. A device for controlling asymmetric modes in components of low-voltage power. Journal of the Siberian Federal University. Series: Engineering and Technology 2023; 16 (2): 175 – 186.
Review
For citations:
Naumov I.V. Assessment of electric energy transport reliability (as exemplified by JSC "Rosseti Siberia Tyvaenergo" power networks). Safety and Reliability of Power Industry. 2023;16(2):64-72. (In Russ.) https://doi.org/10.24223/1999-5555-2023-16-2-64-72