Medium-voltage power supply control method of CRH5 type multiple units

Abstract

The invention discloses a medium-voltage power supply control method of CRH5 type multiple units, relates to the technical field of medium-voltage power supply of multiple units. The invention aims to solve the problem that an existing medium-voltage power supply system of the multiple units uses one power supply bus to supply power to the loads of the whole multiple units, so that when the bus is in failure, the breakdown of the medium-voltage power supply system of the whole multiple units is caused. The medium-voltage power supply control method comprises a medium-voltage power supply bus A and a medium-voltage power supply bus B; auxiliary converters arranged in an MC01 multiple unit, an MH04 multiple unit and an M08 multiple unit are connected to the medium-voltage power supply bus A; auxiliary converters arranged in an M02 multiple unit and an M07 multiple unit are connected to the medium-voltage power supply bus B; medium-voltage contactor boxes are respectively arranged in a TP03 multiple unit, the MH04 multiple unit, a TB05 multiple unit and a TP06 multiple unit; one or more contactors are arranged in each of the medium-voltage contactor boxes; and the medium-voltage power supply bus A and the medium-voltage power supply bus B are connected through the contactors in the medium-voltage contactor boxes located in the TP03 multiple unit, the MH04 multiple unit, the TB05 multiple unit and the TP06 multiple unit. According to the method disclosed by the invention, the situation that the failure of the power supply system of the whole multiple units is caused by failure of a single component in the application process is avoided, and the normal power supply of the whole multiple units can be guaranteed.

Description

Technical field [0001] The invention relates to the technical field of medium voltage power supply for EMUs, and in particular to a method for controlling medium voltage power supply for CRH5 EMUs. Background technique [0002] With the continuous acceleration of railway technology, the use of EMUs has become more and more extensive, and there are more and more types of medium voltage loads on the EMUs, which puts forward higher requirements for the control of the medium voltage power supply of the EMUs. [0003] The medium voltage power supply of the existing EMUs uses a medium voltage bus as the transmission medium, and all medium voltage loads in the train are connected to a medium voltage bus. When any auxiliary converter (medium voltage power supply equipment) fails, Other auxiliary converters can support each other to ensure full power supply. [0004] Since all the auxiliary converters of the whole train supply power to the loads of the whole train through one power supply bu...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing EMU medium-voltage power supply system adopts a power supply bus to supply power to the loads of all trains, when the bus fails, the medium-voltage power supply system of all trains is paralyzed, and provides a medium-voltage power supply for CRH5 EMUs Control Method

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