ASSESSMENT OF THE INFLUENCE OF THE OPERATING MODES OF THE ELECTRIC TRACTION SYSTEM ON LOSSES FROM UNEVENNESS OF ELECTRICITY CONSUMPTION AND MEASURES TO REDUCE THEM
DOI:
https://doi.org/10.32703/2617-9040-2022-39-11Keywords:
mode of operation, uneven power consumption, losses, peak factor, shape coefficient, energy storage.Abstract
The article considers the current problem of uneven electricity consumption in railway transport and steps to reduce it. The analysis of conditions of operation of traction rolling stock is carried out. Based on the results of the analysis, the characteristics of the modes of operation of traction rolling stock of railway transport and energy processes in the system of electric traction during their implementation are given. The factors that lead to energy losses due to uneven traction power consumption are presented. Indicators for estimating the unevenness of traction electricity consumption in the case of the subway and suburban rail transport are proposed. The use of integrated energy indicators peak factor and shape coefficient is proposed as indicators. The peak factor characterizes the level of excess power of the power supply system, the shape coefficient - losses in the traction power supply system. According to these indicators, the time diagrams of electricity consumption at the feeder of the railway traction substation and the subway electric train were evaluated. The results of the quantitative assessment confirmed the adverse effect of certain factors on the unevenness of traction power consumption. It was found that the modes of operation of the subway electric train provoke more significant energy losses in the elements of the traction power supply system compared to the railway. It is proved that regenerative braking increases the unevenness of energy consumption, increasing the load on the traction network and contributing to the emergence of pulsed currents in the traction power supply system. Concepts for overcoming the problems of uneven traction power consumption and the use of excess energy recovery are based on the use of energy storage as an additional power source for traction drive.
References
REFERENCES
Zaliznychnyi transport. Ministerstvo infrastruktury Ukrainy. [Railway transport. Ministry of Infrastructure of Ukraine]. mtu.gov.ua. Retrieved from http://mtu.gov.ua/timeline/Zaliznichniy-transport.html [in Ukrainian].
Stratehichne bachennia rozvytku transportu Ukrainy. [Strategic vision of transport development in Ukraine]. mtu.gov.ua. Retrieved from http://mtu.gov.ua/content/strategiya-2015.html [in Ukrainian].
Kuznetsov, V. H., Sablyn, O.Y., Hubskyi, P. V., & Kolikhaev, E.H. (2015) Analiz rezervov energosberezheniya pri vnedrenii sistemyi rekuperatsii energii na poezdah Dnepropetrovskogo metropolitena [Analysis of energy saving reserves during the implementation of the energy recovery system on the trains of the Dnepropetrovsk metro]. Hirnycha elektromekhanika ta avtomatyka – Mining Electromechanics and Automation, 95, 81–89 [in Ukrainian].
Sablin, O. I. (2018) Rozvytok metodiv i zasobiv pidvyshchennia efektyvnosti vykorystannia enerhii rekuperatsii v system i elektrychnoho transportu [ Development of Methods andMeans for Improvement of the Energy Regeneration Efficiency in the Electric Transport System]. Doctor’s thesis. Dnipro: USUST [in Ukrainian].
Intehrovanyi zvit AT «UKRZALIZNYTsIa» za 2019 rik. [Intehrovanyy zvit AT «UKRZALIZNYTSYA» za 2019 rik [Integrated report of JSC UKRZALIZNYTSYA for 2019.]. (n.d.). www.uz.gov.ua. Retrieved from http://www.uz.gov.ua/files/file/about/investors/Book_UZ_19_UA_FIN_web.pdf [in Ukrainian].
Yatsko, S., Sidorenko, A., Vashchenko, Ya., Lyubarskyi, B., & Yeritsyan, B. (2019). Method to Improve the Efficiency of the Traction Rolling Stock with Onboard Energy Storage. International Journal of Renewable Energy Research, 9(2), 848–858. [in English].
Shevlyugin, M. V. (2013) Energosberegayushchiye tekhnologii na zheleznodorozhnom transporte i metropolitenakh, realizuyemyye s ispol'zovaniyem nakopiteley energii [Energy-saving technologies in railway transport and subways implemented using energy storage devices]. Doctor’s thesis.Moscow: MIIT [in Russian].
Pavelchik, M. (2000) Povysheniye effektivnosti elektricheskoy tyagi pri pomoshchi nakopiteley energii [Increasing the efficiency of electric traction with energy storage]. Doctor’s thesis.Moscow: MIIT [in Russian].
Sulim, A. A., Sichev, S. D., & Raspopin, V. R. Ekonomiya elektroenergii pri ispol'zovanii rekuperativnogo tormozheniya na vagonakh metropolitena [Saving energy when using regenerative braking on subway cars]. Elektromekhanicheskiye i energeticheskiye sistemy, metody modelirovaniya i optimizatsii – Electromechanical and power systems, modeling and optimization methods: Proceedings of the International Scientific and Technical Conference, p. 344, Kremenchug: KNU M. Ostrogradsky [in Ukrainian].
Sheng, L., Di, H., Wang, A., Huang, Yu., Zhao, L., Rui, L., & Guotao, L. (2019). Research on The Regeneration Braking Energy Feedback System of Urban Rail Transit. IEEE Transactions on Vehicular Technology, 7329–7339. doi: 10.1109/TVT.2019.2921161.
Yang, Z., Xia, H., Wang, B., Lin, F. (2019) An overview on braking energy regeneration technologies in Chinese urban railway transportation. International Power Electronics Conference IPEC-Hiroshima 2014 - ECCE ASIA, 2133–2139. doi: 10.1109/IPEC.2014.6869883.
Yatsko, S., Sidorenko, A., & Vashchenko, Ya. (2019) Development of strategies for reducing traction energy consumption by electric rolling stock. Computational problems of electrical engineering journal, 9(1), 44–51.
Pena-Alcaraz M., Fernandez A., Cucala A. P., A. Ramos A., & Pecharroman R. R. (2012) Optimal underground timetable design based on power flow for maximizing the use of regenerative-braking energy. Journal of rail and rapid transit, 226(4), 397–408. doi: 10.1109/IPEC.2014.6869883.
Lelas, M., Pavlovic, T., & Ban, Z. A. (2015) Supercapacitor based energy storage system for urban transportation energy efficiency improvement. International conference on electrical drives and power electronics, 430–436. doi: 10.1109/EDPE.2015.7325333.
Ukrzaliznytsya vyznachyla naypopulyarnishi poyizdy ta napryamky v Ukrayini. Ofitsiynyy sayt Ukrzaliznytsi. [Ukrzaliznytsia has identified the most popular trains and destinations in Ukraine. Official site of Ukrzaliznytsia]. www.uz.gov.ua. Retrieved from http://www.uz.gov.ua/press_center/up_to_date_topic/545833 [in Ukrainian].
Basov, H. H., & Yatsʹko, S. I. (2005). Rozvytok elektrychnoho motorvahonnoho rukhomoho skladu [Development of electric railcar rolling stock]. Kharkiv: VTD «Apeks+» [in Ukrainian].
Tsukalo, P. V., & Yeroshkin, N. G. (1986). Elektropoyezda ER2 i ER2R [Electric trains ER2 and ER2R]. Moscow: VTD «Transport » [in Russian].
Sumpavakup, C., Ratniyomchai, T., & Kulworawanichpong, T. (2017). Optimal energy saving in DC railway system with on-board energy storage system by using peak demand cutting strategy. Journal of modern transportation, 259(4), 223–235. doi: 10.1007/s40534-017-0146-6.
M. Dominguez, M., Fernández-Cardador, A., Cucala, A. P., & Pecharroman R. R. (2012) Energy savings in metropolitan railway substations through regenerative energy recovery and optimal design of ATO speed profiles. IEEE transactions on automation science and engineering, 9(3), 496–504. doi: 10.1109/tase.2012.2201148.
Sulym, A. (2015). On the question of a reasonability of capacitive storages use in the metro // Elektromekhanichni i enerhozberihayuchi systemy – Electromechanical and energy saving systems, 29(1), 94–100.
Liu, X., Li, K. (2020). Energy storage devices in electrified railway systems: a review. Transportation safety and environment, 2(3), 183–201. doi: 10.1093/tse/tdaa016.
Omelyanenko, V. I., Riabov, Ie. S., Overianova, L. V., & Omelianenko, H. V. (2021) Traction electric drive based on fuel cell batteries and on-board inertial energy storage for multi unit train. Electrical engineering & electromechanics. (4), 64–72. doi: 10.20998/2074-272x.2021.4.08.
Omel'yanenko, V. I., Omel'yanenko, G. V., Over'yanova, L. V. (2020). Inertsionnyye nakopiteli energii dlya zheleznykh dorog [Inertial energy storage devices for railways]. Lokomotyv-inform – Locomotive-inform, 1, 26–-32 [in Ukrainian].
Thompson, R. C., Kramer, J., & Hayes, R. J. (2005). Response of an urban bus flywheel battery to a rapid loss-of-vacuum event. Journal of advanced materials, 37(3), 42–50.
Downloads
Published
How to Cite
Issue
Section
License
Copyright: This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
