磷酸铁锂电池在高速铁路信号领域的应用方案研究

Research on the Application Scheme of Lithium Iron Phosphate Batteries in the Signal Field of High-speed Railway

为满足高速铁路信号中继站电源系统的安全性、可靠性、可用性要求,通过调查国内高速铁路信号电源系统的供电原理、容量配置,以及铅酸电池组出现的问题,对磷酸铁锂电池与铅酸电池的性能差异进行分析,根据磷酸铁锂电池在国内各行业的应用情况,提出一种新型磷酸铁锂电池UPS电源系统设计方案。通过综合分析信号中继站内UPS的工作原理、UPS系统及蓄电池组的容量配置,构建一套具有高安全性的一体化锂电池UPS电源系统,电池模块采用高安全性设计,具备更加完善的故障保护及监测功能,在满足后备时间要求的同时,节约机房面积,保障铁路信号电源系统运行安全,以期为后续磷酸铁锂电池在高速铁路信号领域中应用提供参考。

To meet the safety,reliability,and availability requirements of the power supply system of high-speed railway signal relay stations,an analysis has been made on the performance differences between lithium iron phosphate batteries and lead-acid batteries by investigating the power supply principle,capacity configuration,and problems of lead-acid battery packs in China’s high-speed railway signal power supply systems.On the basis of the application of lithium iron phosphate batteries in various industries in China,a new design scheme has been proposed for the power system of uninterruptible power supply(UPS)based on lithium iron phosphate battery.The scheme comprehensively analyzes the working principle of the UPS in the signal relay station,calculates the capacity configuration of the UPS system and battery pack,and constructs a high safety integrated UPS lithium battery power supply system,the battery module with a high safety design and more comprehensive fault protection and monitoring functions not only meets the requirements for backup time,but also saves the area of the computer room,ensuring the safe operation of the railway signal power supply system,and providing a reference for the application of lithium iron phosphate batteries in the signal field of high-speed railway.