Experimental determination of external characteristics of AC traction substations for selection of parameters of active devices of traction power supply system

Aleksandr Komyakov; Viktor Tarasevich

doi:10.20295/2223-9987-2024-02-5-17

UDC

621.331

EXPERIMENTAL DETERMINATION OF EXTERNAL CHARACTERISTICS OF AC TRACTION SUBSTATIONS FOR SELECTION OF PARAMETERS OF ACTIVE DEVICES OF TRACTION POWER SUPPLY SYSTEM Experimental determination of external characteristics of AC traction substations for selection of parameters of active devices of traction power supply system

АА Аа

Published in Bulletin of scientific research results · Pages 5–17 · Rubric: PROBLEMATIC OF TRANSPORT SYSTEM

DOI: https://doi.org/10.20295/2223-9987-2024-02-5-17

Received: 27.06.2024 Accepted: 28.06.2024 Published: 28.06.2024

Authors

Aleksandr Komyakov

Viktor Tarasevich

Aleksandr Komyakov

Academic degree: doctor of technical sciences

Omsk State University of Railway Engineering Professor · Department “Theoretical Electrical Engineering” · Russian Federation · Omsk

Viktor Tarasevich

Omsk State University of Railway Engineering Postgraduate Student · Department “Theoretical Electrical Engineering” · Russian Federation · Omsk

ABSTRACT

Objective: to develop a method of experimental determination of external characteristics of alternating current traction substations for selection of parameters of active devices of traction power supply system. Methods: finding of equivalent currents of phases of a step-down transformer using the theory of linear electric circuits; statistical methods, including: construction and approximation of external characteristics of regression analysis methods, construction of theoretical and experimental law of distribution of equivalent current of traction load and determination of current quantile for a given confidence probability. Results: advantages and disadvantages of methods of simulation modeling of traction power supply system as applied to determination of parameters of active devices are shown, possibilities of experimental method are given. A detailed description of the conducted experiment is given, connection schemes of measuring devices and vector diagrams of currents and voltages are shown. The main stages of the proposed methodology for selecting the parameters of the booster transformer are outlined. Calculation formulas for determining the equivalent phase currents are presented, the external characteristic for the selected traction substation is constructed. The theoretical and experimental distribution law of the equivalent current of the traction load was constructed and the quantiles of the equivalent current were determined, which amounted to 400 A at a confidence level of 0.968. The maximum required value of volt additive for the selected traction substation and the law of volt additive voltage control for the booster transformer were determined. Practical importance: the proposed methodology of selecting the parameters of active devices of traction power supply system based on the experimental determination of external characteristics of traction substations will allow to determine more accurately the energy performance of booster transformers. It is supposed to improve the methodology by processing the results of synchronous measurements of currents and voltages at neighboring traction substations feeding the inter-substation zone. This will make it possible to expand the possibilities of application of active devices of the traction power supply system and improve the algorithms of booster transformer operation, including taking into account the operation of controlled reactive power compensation devices.

KEYWORDS

traction power supply system, traction substation, external characteristic, railway transportation, energy efficiency

Funding

The study was carried out within the framework of a grant from the Russian Science Foundation No. 24-29-00346 on the topic “Application of booster transformers with thyristor control for increased throughput and energy efficiency sections of AC railways."

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GOST

Komyakov A. A., Tarasevich V. A. Experimental determination of external characteristics of AC traction substations for selection of parameters of active devices of traction power supply system // Bulletin of scientific research results. 2024. no. 2. pp. 5-17. DOI: https://doi.org/10.20295/2223-9987-2024-02-5-17. (Date of access 08.09.2026).

MLA

Aleksandr Komyakov, Tarasevich V. A.. "Experimental determination of external characteristics of AC traction substations for selection of parameters of active devices of traction power supply system." Bulletin of scientific research results 2024.2 (2024): 5-17. DOI: https://doi.org/10.20295/2223-9987-2024-02-5-17.

APA

Komyakov A. A., Tarasevich V. A. (2024). Experimental determination of external characteristics of AC traction substations for selection of parameters of active devices of traction power supply system. Bulletin of scientific research results, 2024(2), 5-17. https://doi.org/10.20295/2223-9987-2024-02-5-17

Chicago

Aleksandr Komyakov, Tarasevich V. A.. "Experimental determination of external characteristics of AC traction substations for selection of parameters of active devices of traction power supply system." Bulletin of scientific research results 2024, no. 2 (2024): 5-17. https://doi.org/10.20295/2223-9987-2024-02-5-17.

WIKI

{{cite journal | author = Komyakov A. A., Tarasevich V. A. | title = Experimental determination of external characteristics of AC traction substations for selection of parameters of active devices of traction power supply system | journal = Bulletin of scientific research results | year = 2024 | volume = 2024 | issue = 2 | pages = 5-17 | doi = 10.20295/2223-9987-2024-02-5-17 }}

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