Е-Публикации
Технически университет - София

Abstract: The paper considers the main factors, influencing on the risk of a base power shortage in an electric power system. A methodology for assessing the base active power in the electric power system is proposed. The fact that the magnitude of the base active power depends on the composition of the operating generators in the nuclear and thermal power plants, on their capacity and reliability parameters, is taken into account. When forming the risk assessment criteria, it is also taken into account that the systemic failures in electric power systems are regarded as events, causing severe consequences: disruption of stability; cascading shutdown of power lines; abnormal levels of mode parameters. The developed methodology is applied to assess the risk at the moment of occurrence of a base power shortage in various possible events in the electric power system.

References

1. Strategic vision for the development of the electricity sector of the Republic of Bulgaria from 2023-2053. Ministry of Energy, 2023. https://www.me.government.bg/
2. S. Nedelcheva, P. Tsvetkova. Priorities for the development of electric power generating. ISSN 1312-3920, News of TU-Sliven, No. 2, 2024, pp. 40-45.
3. S. Nedelcheva, D. Vasilev, N. Nedelchev. Assessment of risk of deficiency of power in electric power system. FACTA Universitatis, ISSN 0353-3670, Ser: Elec. Energ. Volume 25, Issue No. 3, 2012.
4. D. Vassilev. Quantitative methods for making optimal decisions in power plant management. Dissertation abstract, TU-Sofia, 2013.
5. S. Mukherjee, R. Nateghi and M. Hastak. A multi-hazard approach to assess severe weather-induces major power outage risks in the U.S., Reliability Engineering and System Safety 175, pp. 283–305, 2018, DOI: 10.1016/j.ress.2018.03.015.
6. K. Sroka, D. Złotecka. The risk of large blackout failures in power systems. Archives of electrical engineering. Vol. 68(2), pp. 411–426, 2019, DOI: 10.24425/aee.2019.128277.
7. H. Alhelou, M. Hamedani-Golshan, T. Njenda and P. Siano. A Survey on Power System Blackout and Cascading Events: Research Motivations and Challenges. Energies, 12(4), 2019, DOI:10.3390/en12040682.
8. S. Amini, F. Pasqualetti and H. Mohsenian-Rad. Dynamic load altering attacks against power system stability: Attack models and protection schemes. IEEE Trans. Smart Grid, 9, pp.2862–2872. 2019, DOI: 10.1109/TSG.2016.2622686 .
9. D. Bojarkin, D. Krupenev and D. Iakubobski. Prediction of the power shortage in the electric power system by means of regression analysis by machine learning methods. International Conference of Young Scientists “Energy Systems Research 2019”. E3S Web Conf. Volume 114, 2019, DOI: 10.1051/e3sconf/201911403003.
10. J. Yanbing, L. Ruiqiong, H. Xiaoqing and W. Peng. Risk Assessment of Cascading Failures in Power Grid Based on Complex Network Theory, 2018 International Conference on Control, Automation, Robotics& Vision, Phuket, pp. 1–6, 2016, DOI: 10.1109/ICARCV.2016.7838704.
11. O. Veloza, F. Santamaria. Analysis of major blackouts from 2003 to 2015: Classification of incidents and review of main causes, Electricity Journal 26, pp. 42–49, 2016, DOI: 10.1016/j.tej.2016.08.006 .
12. M. Hasan. Active-adaptive electrical networks. Monograph. ISBN 978-954-167-467-1, Sofia, TU-Sofia, 2022.
13. I. Dobson, J. Chen, J. Thorp, B. A. Carreras and D. E. Newman. Examining criticality of blackouts in power system models with cascading events, Proceedings of the 35th Hawaii International Conference on System Sciences, 2002, DOI: 10.1109/HICSS.2002.993975 .
14. P. Tsvetkova. Optimum power from decentralized sources in the connecting branches of medium voltage distribution networks. 2023 Eight Junior Conference on Lighting (Lighting). 23-25 September 2023. DOI: 10.1109/Lighting59819.2023.10299417.
15. K. Raykov. Energy efficiency of smart electric grids. Monograph. ISBN 978-619-167-490-9, Sofia, TU-Sofia Publishing House, 2022.
16. P. Tsvetkova. Problems and influencing factors in short-term planning of the development of distribution electric networks, News of TU-Sliven, no. 4, 2022, ISSN 1312-3920.
17. P. Petkova. Determination of the danger of the occurrence of stray currents in electrified DC urban transport. 2022 Seventh Junior Conference on Lighting (Lighting). 19-21 September 2022. DOI: 10.1109/Lighting56379.2022.9929224.
18. H. Ilchev. Influence of the neutral grounding mode on the reliability of actively adaptive electric grids. ICEER2023 - 10h International Conference on Energy and Environment Research: “Sustainable Development with Renewable Energy”, Madrid. 7-9 October 2023, ISSN: 1863-5539.
19. N. Savov. Regarding the "effectiveness" of the national policy and legislation on "energy efficiency" in the field of electricity. International energy forum 2022, Scientific and technical union of energy workers in Bulgaria, Vol. 47/48, pp. 24-28. ISSN 1313-2962.
20. T. Hristova, N. Savov, P. Hristov. Investigation of the possibilities for application of DLT in the production of electricity from biogas, 12th Electrical Engineering Faculty Conference (BulEF), Varna, Bulgaria. pp. 1-5. DOI: 10.1109/BulEF51036.2020.9326027.
21. T. Hristova, N. Savov, A. Yanev. Determination of the influence of jaw movement frequency of jaw crusher on energy consumption. Annals of the University of Petrosani: Electrical Engineering, vol. 20 (2018), pp. 29-36. ISSN 1454-8518.
22. P. Tsvetkova, N. Savov. Analysis of the operational status of a heating power plant. ISSN 1312-3920, News of TU-Sliven, No. 4, 2024.
23. P. Tsvetkova, N. Savov. Procedure for determining the optimal production of electrical energy from a TPP. ISSN 1312-3920, News of TU-Sliven, No. 4, 2024.

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