Articles

Need of technical accounting at electric energy quality reduction under conditions of AC traction substation

User Rating:  / 0
PoorBest 

Authors:


O.Bialobrzheskyi, orcid.org/0000-0003-1669-4580, Kremenchuk Mykhailo Ostrohradskyi National University, Kremenchuk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.Gladyr, orcid.org/0000-0002-3521-9112, Kremenchuk Mykhailo Ostrohradskyi National University, Kremenchuk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

S.Yakimets, orcid.org/0000-0002-2797-2796, Kremenchuk Mykhailo Ostrohradskyi National University, Kremenchuk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.Sulym, orcid.org/0000-0001-8144-8971, State Enterprise Ukrainian Scientific Railway Car Building Research Institute, Kremenchuk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


повний текст / full article



Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2021, (3): 075 - 080

https://doi.org/10.33271/nvngu/2021-3/075



Abstract:



Purpose.
Justification of the need for electrical energy quality technical accounting based on the results of monitoring a 10 kV traction substation transformer mode.


Methodology.
Measurements of the current and voltage at secondary busbars of a 10 kV traction substation and monitoring of the electrical energy parameters in the observation interval were carried out. Using the Fourier analysis methods, a current and voltage harmonics level was analyzed. For the current and voltage fundamental harmonic, the positive, negative and zero sequences components are analyzed using the Fortescue transformation. Based on the secondary voltage side current discrete spectrum, the calculation of power loss growth in cable line and transformer windings was carried out.


Findings.
As a result of measuring the electrical mode parameters on the transformer secondary voltage busbars, a significant distortion of current and voltage, as well as significant fluctuations in active and reactive power, were established. During the observation interval, significant changes in the power factor are noted. Based on the calculation of additional losses from current higher harmonics in the cable line, it has been established that the current load of the line can be reduced by 10% while eliminating the current higher harmonics. A similar calculation of loss growth carried out for the traction transformer showed that in the analyzed case its load should not exceed 87.8% of the nominal one.


Originality.
A significant level of harmonic current distortion on secondary voltage busbars of the traction transformer leads to its underutilization, whereas the voltage distortion level, as an electrical energy quality indicator in accordance with current standards, remains within the permissible range. This requires a revision of electrical energy quality indicators, from the standpoint of power, which is due to both current and voltage.


Practical value.
The indicators obtained as a result of calculations can be used to correct the load of traction substation transformers. The introduction of the obtained indicators into the set of parameters for electrical energy technical metering is a prerequisite for the development of measures to improve the electrical energy quality.



Keywords
: technical metering, electrical energy quality, traction substation transformer, current and voltage harmonics, power losses

References.


1. Ogunsola, A., & Mariscotti, A. (2013). Railway Traction Systems. In: Electromagnetic Compatibility in Railways. Lecture Notes in Electrical Engineering, Springer, Berlin, Heidelberg, 168. https://doi.org/10.1007/978-3-642-30281-72.

2. Tao, H., Hu, H., Jiang, X., He, Z., & Zhao, C. (2016). Research on low frequency voltage oscillation in traction power supply system and its affecting factors. Dianwang Jishu/Power System Technology, 40(6), 1830-1838. https://doi.org/10.13335/j.1000-3673.pst.2016.06.033.

3. Hu, H., He, Z., Wang, K., Ma X., & Gao, S. (2016). Power-Quality Impact Assessment for High-Speed Railway Associated With High-Speed Trains Using Train Timetable Part II: Verifications, Estimations and Applications, IEEE Transactions on Power Delivery, 31(4), 1482-1492. https://doi.org/10.1109/TPWRD.2015.2472961.

4. Szelag, A., Kostin, M., Nikitenko, A., Mishchenko, T., & Jefimowski, W. (2019). Development of a Spectral Theory for Analysis of Non-Stationary Pulse Stochastic Electromagnetic Processes in Devices of Electric Transport Systems. 2019 IEEE 6th International Conference on Energy Smart Systems (ESS). https://doi.org/10.1109/ess.2019.8764205.

5. Kostin, N.A., & Sheikina, O.G. (2016). Development of the theory of spectra of stochastic processes of voltages and currents of electric transport systems, Electromagnetic compatibility and safety on railway transport, (12), 11-18.

6. Kryukov, A.V., Cherepanov, A.V., Shafikov, A.R., & Bezridnyj,E.S. (2019). Simulation of non-sinusoidal modes in railway power supply systems during movement of high-speed trains IOP Conference Series: Materials Science and Engineering, International Conference on Transport and Infrastructure of the Siberian Region (SibTrans-2019) 1215 November 2019, 760, 1-8. https://doi.org/10.1088/1757-899X/760/1/012034.

7. Shcherbak, Y.V., & Semenenko, Yu.A. (2016). Analysis of the functioning of a combined active filter of a sequential type with selective links for direct current traction substation. Energetika. Proceedings of CIS higher education institutions and power engineering associations, 59(5), 418-426. https://doi.org/10.21122/1029-7448-2016-59-5-418-426.

8. Bondarenko, V., Domanskyi, I., & Kostin, G. (2017). Analysis of energy efficiency of operating modes of electrical system with the traction loads. Electrical Engineering & Electromechanics, (1), 54-62. https://doi.org/10.20998/2074-272X.2017.1.09.

9. Mariscotti, A. (2019). Relevance of Harmonic Active Power Terms for Energy Consumption in Some Railway Systems (Version 05). Presented at the 24nd IMEKO TC4 International Symposium Electrical & Electronic Measurements, XiAn, China: Zenodo. https://doi.org/10.5281/zenodo.3604338.

10. Zhezhelenko, I.V., Saenco, Yu.L., Baranenko, T.K., Gorpinich,A.V., & Nesterovich, V.V. (2007). Selected issues of non-sinusoidal modes in electrical networks of enterprises: monograph. Energoatomizdat. Retrieved from http://eir.pstu.edu/handle/123456789/5417.

11. Milardovich, N., Prevosto, L., & Lara, M.A. (2014). Calculation of harmonic losses and ampacity in low-voltage power cables when used for feeding large LED lighting loads. Advanced Electromagnetics, 3(1), 50-56. https://doi.org/10.7716/aem.v3i1.258.

12. Bialobrzheskyi, O., & Rodkin, D. (2020). Apparent power effectiveness for the assessment of the efficiency of the cable transmission line in the supply system with sinusoidal current (Ocena strat w linii przesyowej kablowej w systemie zasilania prdem sinusoidalnym). Przeglad Elektrotechniczny, 96(9), 26-29. https://doi.org/10.15199/48.2020.09.05.

13. Lpez-Fernndez, X.M., Blent Ertan, H., & Turowski, J. (2017). Transformers: Analysis, design, and measurement, (pp. 1-609). CRC Press. https://doi.org/10.1201/b12275.

14. Thollander, P., Karlsson, M., Rohdin, P., Wollin, J., & Rosenqvist, J. (2020). Introduction to Industrial Energy Efficiency. Academic Press. https://doi.org/10.1016/C2018-0-01452-8.

15. DSTU EN 50160:2014 (EN 50160:2010, IDT) National standard of Ukraine. Characteristics of the power supply in the electrical framing of the intrinsic value (n.d.). Kyiv: Minenergorozvitku Ukrainy. https://www.en.lg.ua/images/stories/2019/standart-yakosti.pdf.

16. Bialobrzheskyi, O., & Rodkin, D. (2020). The assessment of the distortion of electric power in alternating and pulse current of a rectifier circuit (Analiza znieksztacenia mocy w obwodzie z prostownikiem). Przeglad Elektrotechniczny, 96(8), 118-121. https://doi.org/10.15199/48.2020.08.23.

17. Bialobrzheskyi, O.V., & Rodkin, D.Y. (2019). Distorting electrical power of the alternating current in the simplest circuit with a diode. Energetika. Proceedings of CIS Higher Education Institutions and Power Engineering Associations, 62(5), 433-444. https://doi.org/10.21122/1029-7448-2019-62-5-433-444.

 

Visitors

7248073
Today
This Month
All days
1257
18768
7248073

Guest Book

If you have questions, comments or suggestions, you can write them in our "Guest Book"

Registration data

ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

Contacts

D.Yavornytskyi ave.,19, pavilion 3, room 24-а, Dnipro, 49005
Tel.: +38 (056) 746 32 79.
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
You are here: Home