The use of cable power lines in power supply systems of railways
https://doi.org/10.37493/2307-907X.2024.3.2
Abstract
Introduction. Overhead power lines are traditionally used to connect railway traction substations to 110-220 kV networks. This approach has a number of disadvantages that can be eliminated when using 110-220 kV cables with molecular cross-linked polyethylene insulation in external power supply systems for traction substations. Goal. To develop digital models to determine the modes of railway power supply systems with power supply to traction substations via cables. Materials and methods.. Methods of multiphase modeling of electrical power systems and the Fazonord software product, version 5.3.4.5–2024 were used. Results and discussion. A comparison of the 110 kV AS-300 overhead line and a cable of a similar cross-section showed that in the case of a cable line, the standard deviations of voltages on the current collectors of electric locomotives were reduced by approximately 75%. Negative sequence asymmetry is reduced by 3...5 times, however, due to capacitive generation by cables, currents at low loads and losses in power lines increase. Conclusion. The developed digital models can be used in design. The modeling technique is universal and can be used to calculate the modes of power supply systems of any configuration and traction networks of various designs.
About the Authors
A. V. KryukovRussian Federation
Andrey V. Kryukov – Dr. Sci. (Tech.), Professor of the Department of Electric Power Engineering of Transport; Professor of the Department of Power Supply and Electrical Engineering
15 Chernyshevsky str., Irkutsk, 664074
83 Lermontov str., Irkutsk, 664074
K. V. Suslov
Russian Federation
Konstantin V. Suslov – Dr. Sci. (Tech.), Associate Professor, Professor of the Department of Hydropower and Renewable Energy Sources; Professor of the Department of Power Supply and Electrical Engineering
14 Krasnokazarmennaya str., Moscow, 111250
83 Lermontov str., Irkutsk, 664074
A. V. Cherepanov
Russian Federation
Alexander V. Cherepanov – Cand. Sci. (Tech.), Associate Professor, Associate Professor of the Department of Electric Power Engineering of Transport
15 Chernyshevsky str., Irkutsk, 664074
I. A. Fesak
Russian Federation
Ilya A. Fesak – Graduate Student
15 Chernyshevsky str., Irkutsk, 664074
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Review
For citations:
Kryukov A.V., Suslov K.V., Cherepanov A.V., Fesak I.A. The use of cable power lines in power supply systems of railways. Newsletter of North-Caucasus Federal University. 2024;(3):18-25. (In Russ.) https://doi.org/10.37493/2307-907X.2024.3.2