Development of an Anti-Ice/Ice-Melting Technology for Railway Catenary Systems

Purpose: To analyze modern technologies for combating icing of railway overhead contact network focusing on the development and application of ice melting methods with a special emphasis on China’s practices. To identify key achievements of leading countries in this field, trace the evolution of technologies, conduct a comparative analysis of the practices applied in Russia, China and other countries, and identify their advantages and disadvantages. Methods: The study is based on the analysis of current scientific publications and an integrated approach to the study of technologies for combating icing of the railway contact network. The study of intelligent control systems, in particular the use of static reactive power generators (SVG) in combination with compensating devices that allow adapting the system parameters to weather changes in real time. A comparative analysis of widely used methods of combating icing in different countries in order to identify their advantages and disadvantages, as well as to assess the prospects for further development of technologies. Results: Key methods of de-icing of the contact network such as phase heating, the use of static reactive power generators (SVG) and the integration of intelligent control systems are found to contribute to improved system reliability and energy efficiency. The study has shown that the introduction of modern innovative solutions allows optimizing the de-icing process, reducing operating costs and adapting technologies to difficult climatic conditions. Practical significance: This article serves as a basis for understanding the existing de-icing systems for railway contact networks. The focus is on analyzing the practices of leading countries in this field, which can be used as a reference for the development of de-icing technologies worldwide. The innovative approaches described in the paper can be integrated into existing systems to increase their reliability, reduce operating costs and improve environmental sustainability. On the basis of the presented data and graphical materials, the real prospects for the implementation of modern solutions for the protection of railway contact networks have been assessed.