摘要
针对目前电气化铁路系统中UPS的运行情况,分析其存在的三个关键问题:(1)目前UPS的自检功能并不能完全检测到故障蓄电池;(2)在国内的电气化铁路系统中,UPS蓄电池长期处于浮充饱和状态,影响电池寿命;(3)电池容量监测技术可以有效控制蓄电池的放电程度,防止过放电,提高电池寿命,但由于蓄电池本身所存在的复杂化学特性,电池容量监测的准确度仍有待提高。设计蓄电池放电实验,并根据实验数据找出可以解决以上三个问题的方法,以此提高电池寿命。
According to the present operation of UPS in electric railway, three key problems existing in its application were summed up as follows. First, UPS performing a self-test automatically is unable to absolutely detect the failure battery. Second, in electrified railway, UPS battery keeps in the floating charge state for a long time, which reduces battery lifetime. Third, discharge time of battery is determined on the basis of battery capacity. The accurate measurement of battery capacity is getting more and more important to avoid deep discharge. However, with complex chemical properties of battery, to achieve accurate measurement of battery capacity is impossible at present. So, to solve the three problems above, an experiment was conducted, so as to prolong battery life.
出处
《电源技术》
CAS
CSCD
北大核心
2013年第6期1020-1021,1071,共3页
Chinese Journal of Power Sources
