Clean Power

Ukrainian (UA)English (United Kingdom)

The National Academy of Sciences of Ukraine

The Institute of Electrodynamics

About Institute



V.M. Bezruchko1*, R.O. Buinyi1**, V.V. Zorin2, A.O. Kvytsynskyi3

1- Chernihiv National University of Technology,
str. Shevchenka, 95, Chernihiv, 14035, Ukraine,
е-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
2- Institute for Energy Saving and Energy Management NTUU I. Sikorsky Kyiv Polytechnic Institute,
str. Borshchagivska, 115, Kyiv, 03056, Ukraine
3- Research & design center for the development of the United Energy System of Ukraine PJSC NPC UKRENERGO,
str. Dorohozhytska, 11/8, Kyiv, 04111, Ukraine

At a wind power station, 10-35 kV cable transmission lines are used to connect powerful 1.5-5.5 MW wind turbines. Due to the high cost of “green” electricity, losses in the cable lines of a power station can be too expensive. Therefore, during the design process, it is necessary to choose such a cross-section of cable cores that will ensure the minimum costs to the investor for the entire operation of the wind power station. An analytical dependence is obtained, which makes it possible to calculate an economically justified current density for the cores of such cables for 10, 20, and 35 kV for any electric energy tariff and the duration of the maximum generation of the power station. The economically justified current density for the cables of the electric network of the wind power station is calculated for the current “green” tariff and the tariff that will be introduced in Ukraine from 01.01.2025, with different durations of maximum generation throughout the year. It was established that the cross-sections of cable cores that are selected according to the requirements of current regulatory documents will be 2-3 times smaller than those selected for the obtained value of economically justified current density. The economic current density values given in the article make it possible to choose rational cross-sections cable core during the design of networks of the wind power station. References 4, figures 2. table 1.
Key words: cable power line, wind power station, economically justified current density.

1. GKD 340.000.002-97. Determination of economic efficiency of capital investments in energy. Method. Power systems and electrical networks. K.: Minenerho Ukrainy, 1997. 53 p. (Ukr)
2. Buinyi R., Perepechenyi V., Zorin V. Regression relationships for costs of facilities in electrical power networks 10-35 kV. Bulletin of NTU KhPI. Series: New solutions in modern technologies. 2017. No 7 (1229). Pp.18-23. DOI: (Ukr)
3. SOU-N EE 40.1-00100227-96:2014. Methodical recommendations for the analysis of technological losses of electric energy and the choice of ways to reduce them. K.: DP NEK Ukrenerho, 2014. 84 p. (Ukr)
4. NKREKP. The values of green tariff for electricity generated from alternative energy sources. URL: /elektro/taryfy_na_vidpusk-elektro.pdf (Accessed: 05.12. 2019) (Ukr)

Received 28.02.2020