Research Institute of Information and Control Technology, North China Institute of Science and Technology, Beijing , China

针对矿用晶闸管相控充电器不能实现高频智能充电以及能量的双向流动等缺点,提出了矿用铅酸蓄电池组高频智能快充充电器设计方案,研究了其主回路拓扑电路结构,快速充电的工作原理及智能化充电方法。该充电器由多环节功率变换单元组成,采用变电流智能快速充电放电方法,自动匹配最佳充电曲线,恒流限压快速充电,实现了从输入三相AC380 V/660 V到直流DC0~550 V的变换。应用结果表明,矿用铅酸蓄电池组高频智能快充充电器能实现快速充电,瞬间放电,具有能量双向流动、快速充电、瞬间放电、动态响应快、智能化程度高等特性。

According to a mine thyristor phased array charger could not realize a high frequency intelligent charging, energy bidirectional flow and others, the paper provided a design plan of a high frequency intelligent rapid charger for the mine lead acid battery pack and had a study on a topology circuit structure of the main circuit, working principle of the rapid charging and intelligent charging method. The charger was consisted of a multi link power conversion unit. A variable current intelligent rapid charging and discharging method was applied. An optimum charging curve was automatically matched and the rapid charging was conducted with a constant current and constant voltage. Therefore，a conversion was realized from the input of three phase AC380 V/660 V to DC0～550 V. The results of the installation and adjustment as well as the operation test showed that the high frequency and intelligent rapid charger of the mine lead acid battery pack could realize the rapid charging and transient discharging and could have the energy bidirectional flow, rapid charging, transient discharging, fast dynamic response, high intelligent degree and other features.