Modeling of Electromagnetic Fields of the Traction Network Taking into Account the Influence of Metal Structures
Source abstract
Abstract
The paper addresses the issues of electromagnetic safety in traction networks of 25 kV AC railways. The purpose of the research is to develop digital models to determine the strengths of electromagnetic fields (EMFs) created by traction networks near portal-type metal structures. Such a structure in this study is represented by an overpass located above the tracks. The presence of a conductive structure significantly complicates the picture of EMF distribution in space. In contrast to the plane-parallel EMF of the traction network on interstation tracks in the spans between the supports of the catenary system, the field in this situation becomes three-dimensional. The technology for detecting strength relies on the concept of segments of limited length conductors, some of which may be buried. In order to apply the quasi-stationary zone equations to frequencies of up to 2000 Hz, it is essential to ensure that the size of the set of objects composed of these conductors does not exceed several hundred meters. Based on the modeling results, the dependences of the amplitudes and components of EMF strengths on the z-coordinate passing along the axis of the railway were obtained. In addition, three-dimensional diagrams were constructed to analyze the distribution of EMF in space. The findings of the studies show that the presented technique allows considering the influence of metal structures when modeling the electromagnetic fields of traction networks. It can be used in practice to develop effective measures to enhance electromagnetic safety conditions.
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Research context
OpenAlex topics: Railway Systems and Energy Efficiency · Advanced Research in Systems and Signal Processing · Transportation Systems and Safety
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Heat, Hydraulics and Environmental Engineering, Agrarian and Industrial Faculty, “Angel Kanchev” University of Ruse, 7017 Ruse, Bulgaria
Department of Transport Electric Power, Irkutsk State Transport University, 664074 Irkutsk, Russia
Department of Power Supply and Electrical Engineering, Irkutsk National Research Technical University, 664074 Irkutsk, Russia
Department of Hydropower and Renewable Energy, National Research Technical University “Moscow Power Engineering Institute”, 111250 Moscow, Russia
Department of Electric Power Engineering of Transport, Irkutsk State Transport University, 664074 Irkutsk, Russia
Department of Energy, Transbaikal State University, 672039 Chita, Russia
Department of Transport, Faculty of Transport, “Angel Kanchev” University of Ruse, 7017 Ruse, Bulgaria
Department of Economics and Management, Russian University of Cooperation, 420034 Kazan, Russia
Funding
European Union-NextGenerationEU
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Show source-provided references
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