GOLOVCHENKO Anatoliy & BOLSHENKO Oleksandr
The metro system in the modern world is widely used in the urban transport system. Nevertheless, many negative consequences, such as electrochemical corrosion on the metro route caused by a wandering current, endanger the metal structures and personal safety of both passengers and service personnel
In article factors of wandering currents on the "Metro" system, their effect on the construction of reinforced concrete, metal structures, as well as on the rails and electrical equipment of the train are examined and analyzed.
In general, there are various methods for analyzing the distribution and impact of a stray current in the subway structure: a network model, a ground return model, a concentrated parameter model, an equivalent layer model, and a resistive type model.
Based on these models, the distribution of the underground electric field, its effect on the occurrence of stray currents, and possible ways of reducing the impact and magnitude of the current on the metal structure, which is possible with the use of renewable energy sources, in particular solar panels, is analyzed
Based on the analysis, soil and humidity of the subway tunnel play an important role in reducing the negative impact of the wandering (parasitic) current, which in turn emphasizes the need for research in this direction and the creation of a mathematical model for a more detailed analysis of this problem
Keywords: subway, stray currents, problem, solar panel