摘要
Abstract
The train control system of subway is the core system of modern urban subway operation.The stable and reliable signal power supply is very important to ensure the safety of subway operation and passenger travel.This paper proposes a stable and reliable design scheme of redundant signal power supply.Firstly,the overall structure of the redundant signal power supply is introduced.Secondly,according to the overall structure,the specific implementation scheme of the redundant power supply circuit,EMC protection circuit and load sharing circuit is explained in detail.the principle diagrams of the relevant circuits are provided,and the specific parameters of the adopted components are described.Finally,the ripple test,noise test,impulse current test and redundancy characteristic test of the redundant signal power supply are carried out,the testing process is explained in detail,and the test results are given.关键词
冗余信号电源/EMC防护/负载均分/电源测试Key words
redundant signal power supply/EMC protection/load sharing/power supply test分类
交通工程
