Valve-regulated-lead-acid (VRLA) battery charging performed in high-temperature environments is extremely risky under overcharge conditions, and may lead to a subsequent thermal runaway. A new pressure-controlled char...Valve-regulated-lead-acid (VRLA) battery charging performed in high-temperature environments is extremely risky under overcharge conditions, and may lead to a subsequent thermal runaway. A new pressure-controlled charging method was adopted and the charging characteristics of the pressure-controlled VRLA battery in high-temperature environments were ex-perimentally studied. The concept was tested in a large temperature gradient to obtain more details about the effects of users' accustomed charging and discharging modes on battery capacity. The premature capacity loss (PCL) phenomenon under high temperature exposure was analyzed. The results showed that the capacity loss could be recovered by charging using a large current.展开更多
目前对阀控式铅酸蓄电池建模的研究很少,而且都是针对一种放电倍率,而工业上往往要求蓄电池能工作在不同放电电流下。基于红河变电站实验环境,利用变电站直流屏使用丰日2 V 200 Ah蓄电池GFM-200和新威充放电仪器,并使用Matlab仿真软件...目前对阀控式铅酸蓄电池建模的研究很少,而且都是针对一种放电倍率,而工业上往往要求蓄电池能工作在不同放电电流下。基于红河变电站实验环境,利用变电站直流屏使用丰日2 V 200 Ah蓄电池GFM-200和新威充放电仪器,并使用Matlab仿真软件对蓄电池建模,实现了一个等效电路模型,满足了不同放电电流仿真的要求。仿真数据与实验数据相比较,结果显示二者有较好的吻合度,可为蓄电池性能研究和正确使用提供参考。展开更多
文摘Valve-regulated-lead-acid (VRLA) battery charging performed in high-temperature environments is extremely risky under overcharge conditions, and may lead to a subsequent thermal runaway. A new pressure-controlled charging method was adopted and the charging characteristics of the pressure-controlled VRLA battery in high-temperature environments were ex-perimentally studied. The concept was tested in a large temperature gradient to obtain more details about the effects of users' accustomed charging and discharging modes on battery capacity. The premature capacity loss (PCL) phenomenon under high temperature exposure was analyzed. The results showed that the capacity loss could be recovered by charging using a large current.
文摘目前对阀控式铅酸蓄电池建模的研究很少,而且都是针对一种放电倍率,而工业上往往要求蓄电池能工作在不同放电电流下。基于红河变电站实验环境,利用变电站直流屏使用丰日2 V 200 Ah蓄电池GFM-200和新威充放电仪器,并使用Matlab仿真软件对蓄电池建模,实现了一个等效电路模型,满足了不同放电电流仿真的要求。仿真数据与实验数据相比较,结果显示二者有较好的吻合度,可为蓄电池性能研究和正确使用提供参考。