动车组镍铬碱性蓄电池组多节单体短路预警试验研究

Research on Multiple Unit Short Circuit of Ni Cr Alkaline Battery Set of EMU Early Warning Test

动车组用镍铬碱性蓄电池组在使用中可能会出现单体电池短路的情况,多节单体电池短路将会导致整组蓄电池安全故障。该文对国内某型动车组蓄电池组进行测试,通过对比正常蓄电池组与多节单体短路蓄电池组的充电电流变化情况,研究蓄电池组多节单体短路的预警方法。

Single battery short circuit may occur in the use of Ni Cr alkaline battery for EMU. The short circuit of multiple single batteries will lead to the safety failure of the whole battery. In this paper, the battery pack of a domestic EMU is tested. By comparing the charging current changes of normal battery pack and multi unit short-circuit battery pack, the early warning method of multi unit short-circuit of battery pack is studied.