The existing defects of DC power supply and the premature failure of storage battery group are analyzed. The damage of storage battery caused by totally charging operation and its countermeasures are discussed. Individual charging is proposed to avoid overcharging and undercharging of storage battery. The alternative pathway is set for each storage battery to implement the automatic bypass of faulty storage battery.The charging module digitalization is realized without additional wiring for storage battery supervision and performance warning. Discussion and data analysis are carried out for each improvement and the measured data of prototype are given.%分析了目前电力直流控制电源存在的缺陷及蓄电池组早期失效的原因,论述了均充操作对蓄电池组造成损害的现状及解决方法.提出将蓄电池组串联充电改为每只蓄电池独立充电的方法解决蓄电池过充和欠充问题以及蓄电池单只更换问题.通过为每只蓄电池设置备用通路的方法解决故障蓄电池自动旁路问题:提出将蓄电池充电模块数字化方法在不增加蓄电池接线的前提下解决蓄电池监控问题并实现蓄电池性能预警.对每项改进是否会带来新的应用问题进行了理论探讨和数据分析,提供了改进后样机的实测数据.
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