Abstract
With the continuous expansion of urban scale and the continuous increase of population, the pressure of urban traffic is increasing, so it is necessary to improve urban rail transit and better promote urban development and construction. At this stage, urban rail transit as an important tool of urban public transport, with fast, energy-saving and other advantages, so it has become an important part of urban infrastructure. Stable power system is the basis to ensure the stable operation of urban rail transit. However, traction power supply and electric power technology are needed to provide technical support in the operation of urban rail transit. This paper analyzes the content of this aspect and has a certain understanding of the relevant technology through the analysis of the article. Urge the relevant staff to conduct in-depth research, in order to obtain more advanced technology. With the gradual improvement of the reliability and advanced nature of the power grid, the self-healing ability has become the core function of the advanced power grid system in the future. This paper analyzes and compares the research status and technical characteristics of self-healing technology of distribution network system and rail transit power supply system, and points out the deficiency of self-healing of rail transit power supply system at present; by combing the fault scenarios and self-healing requirements of rail transit power supply system, this paper preliminarily analyzes the realization method of self-healing system, and puts forward an overall architecture of self-healing system. This paper first explains the causes of urban rail transit power system faults, then explains the fault types of urban rail transit power system, and finally explains the ways to deal with the faults of urban rail transit power system. With the continuous acceleration of urban modernization in China, urban rail transit has become the main force of urban transportation, providing people with more convenient travel, but also has a very high travel efficiency. It is precisely because of the characteristics of urban rail transit itself that it has become the darling of urban development, and many cities have plans to build rail transit.
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