Railway power line fault automatic isolation system and method

Abstract

The invention provides railway power line fault automatic isolation system and method. The system comprises substation control layer equipment, a plurality of line interval layer equipments arranged along a power line and a plurality of normally-closed switches arranged on the power line corresponding to the plurality of line interval layer equipments one to one, wherein the plurality of line interval layer equipments divide the power line into a plurality of sections; the substation control layer equipment is used for obtaining information relative to a fault position and transferring isolation indication signals to the line interval layer equipment at the endpoint of a section containing the fault position according to the information of the fault position; the line interval layer equipments are used for receiving the isolation indication signals from the substation control layer equipment and responding the received isolation indication signals to control the switches correspondingto the line interval layer equipments to open. The railway power line fault automatic isolation system and method have the advantages of automatically and rapidly isolating the fault section, saving the manpower and material resources and being beneficial to rapidly recovering the power.

Description

Technical field [0001] This application relates to railway power systems, and in particular to a system and method for automatically isolating railway power line faults. Background technique [0002] With the rapid development of power technology, all aspects of industry, agriculture, and transportation are inseparable from electricity. Therefore, the normal operation of power lines is extremely important for the normal production and life of human beings. With the continuous improvement of the transportation capacity of heavy-load and high-traffic-density railways, higher requirements are put forward for the reliability of the power supply of railway power lines (such as 10kV railway power lines) that supply power to their traffic signals. [0003] At present, when a railway power line fails, it is often necessary for maintenance personnel to go to the site to isolate the failed section, so as to facilitate the timely restoration of power supply to other non-faulty sections. Howe...

AI Technical Summary

Problems solved by technology

However, power lines are usually distributed in a wide range, especially railway power lines, which are not only long but also generally located in mountainous areas or places with inconvenient traffic. When a fault occurs, it is difficult for maintenance personnel to rush to the scene immediately, which makes the fault section isolated It takes a long time, which is not conducive to the timely restoration of power supply of the power line; and the fault often occurs in the case of bad weather. It is difficult to adapt to the requirements of modern railway transportation

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