Direct current power supply system of subway section air shaft

The invention relates to the technical field of metro section power supply, in particular to a direct-current power supply system of a metro section air shaft, which comprises a section air shaft, a substation A and a substation B. The substation A and the substation B are arranged at two ends of the section air shaft. An electric train is arranged between the contact net and the steel rail, the contact net and the steel rail are connected with a DC/DC conversion device, and the DC/DC conversion device is simultaneously connected with an energy storage device, a direct-current water pump and a direct-current fan through a direct-current bus. Full-direct-current power supply of the section air shaft equipment is achieved, and the engineering cost is lower on the basis that the power supply reliability of the system is guaranteed. 本发明涉及地铁区间供电技术领域，具体涉及一种地铁区间风井的直流供电系统，包括区间风井以及其两端的变电所A和变电所B，变电所A和变电所B将外部引入的电源经整流变压器和整流器降压变流后为接触网提供牵引供电，接触网和钢轨之间设置有电动列车，接触网和钢轨连接DC/DC变换装置，DC/DC变换装置通过直流母线同时连接储能装置、直流水泵和直流风机。本发明实现区间风井设备的全直