A DC deicing system and deicing method for catenary in contact section of urban rail parking lot

Abstract

The invention discloses a DC deicing system and method of a connection-segment overhead line system of a parking lot of urban rails. The deicing system comprises a wire inlet switchgear, a DC deicing device and a DC deicing changeover switch, the wire inlet switchgear comprises an inlet wire harness splitting switch and a disconnecting switch, the disconnecting switch is connected between the input end of the DC deicing device and a bus, the inlet wire harness splitting switch is connected between the overhead line system and the bus, and the output end of the DC deicing device is connected to the overhead line system via the DC deicing changeover switch. According to the deicing method, the DC deicing changeover switch selects an icing overhead line system to form a deicing loop, the DC deicing device is used to deice the overhead line system in the deicing loop, and composition of the deicing loop can be flexibly switched. According to the deicing system and method, composition is simple, the engineering and application cost is low, the operationality is high, and the difficulty in deicing of the complex overhead line system is overcome.

Description

technical field [0001] The invention relates to the field of urban rail transit, in particular to a DC ice-melting system and an ice-melting method suitable for contact nets in urban rail parking lots. Background technique [0002] In recent years, with the rapid development of urban rail transit, urban rail transit has become the most advanced and convenient way of passenger transportation in medium and large cities. The safety of the catenary system has become the guarantee for the safe, reliable and high-speed operation of urban rail lines. In coastal or southern cities in China, due to the influence of wet and cold weather in winter, it is more and more common for overhead catenary lines and open-air catenary lines in the contact section of urban rail parking lots to be covered with ice in snowy weather after the line is out of service at night. Seriously affected the normal operation of urban rail vehicles. [0003] At present, there have been relevant researches and ...

AI Technical Summary

Problems solved by technology

Therefore, the DC deicing system and deicing method for electrified railway catenary are not suitable for the deicing of the catenary in the contact section of the urban rail parking lot. It is necessary to seek a simple and reliable structure that is suitable for the contact line distance of the contact line of the urban rail parking lot. Short, topology-complex ice-melting systems are a priority

Images