Electrodynamics of Power Losses in the Devices of Inter-Substation Zones of AC Electric Traction Systems

Anatolii Nikitenko, Mykola Kostin, Tetiana Mishchenko and Oksana Hoholyuk
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Anatolii Nikitenko: Division of Traction and Electrical Power Economics, Electrical Power Engineering Institute, Warsaw University of Technology, Koszykowa St. 75, 00-662 Warsaw, Poland
Mykola Kostin: Department of Electrical Engineering and Electromechanics, Ukrainian State University of Science and Technologies, Lazaryana St. 2, 49-010 Dnipro, Ukraine
Tetiana Mishchenko: Department of Intelligent Power Supply Systems, Ukrainian State University of Science and Technologies, Lazaryana St. 2, 49-010 Dnipro, Ukraine
Oksana Hoholyuk: Department of Theoretical Electrical Engineering, Lviv Polytechnic National University, Bandery St. 12, 79-013 Lviv, Ukraine

Energies, 2022, vol. 15, issue 13, 1-18

Abstract: This article presents a new method for the estimation of active power losses based on a “field” approach, i.e., on the theory of the electromagnetic field and the theory of propagation of electromagnetic waves in a dielectric medium. Electromagnetic waves are assumed to transmit energy from the traction substation to electric rolling stock through the airspace of the inter-substation zone (i.e., not through the wires of the traction network) and meet electrically conductive surfaces on their way. The waves are partially reflected from the surfaces and partially penetrate them, thus creating thermal losses, the determination of which is the main task of this article. The analytical expressions for specific losses of active power are obtained by solving the system of Maxwell’s equations. Calculations of specific power losses in the catenary, rails, roofs, and bottoms of carriages and electric locomotives are performed. Power losses in carriages and electric locomotives are found to be at least 7%. A comparative assessment of the magnitude of total power losses of different types obtained by the “field” and “circuit” approaches is provided, which has established that “conditional” losses correspond to losses in rails, train carriages, and electric locomotives.

Keywords: power losses; electric traction; train; current; electromagnetic field strength; inter-substation zone; carriage; rails; contact wire; electric locomotive (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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