超级电容蓄电池混合储能直流系统工作特性研究  

Research on Operation Characteristics of Super Capacitor-battery Hybrid Energy Storage DC System

作　　者：高巧云[1] 崔学深[1] 张健[1] 张晓东[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206

出　　处：《现代电力》2013年第6期27-31,共5页Modern Electric Power

摘　　要：设计了超级电容-蓄电池混合储能装置及电路,能够在交流侧突然失电或直流侧突加负载时达到超级电容优先放电、减小对直流系统中蓄电池的冲击并延长蓄电池寿命的目的。针对变电站的直流系统,利用仿真软件进行了突然失电及突加负载两种工况在超级电容容量不同时的仿真,对比结果表明论文设计的混合储能直流系统既避免了蓄电池单独储能时的容量浪费,又发挥了超级电容功率密度高和循环寿命长的优点,而且超级电容容量越大,放电时间越长,研究结论符合实际。实验室搭建了混合储能直流系统实验平台,实验结果与仿真结果基本一致。In this paper,super capacitor-battery hybrid energy storage devices and circuits are designed,which car make super capacitor preferentially discharge when sudder loss of power on the AC side or sudden added load on the DC side,and reduce the shock on battery in DC system and extend battery life.For DC systems of substation,two conditions,the sudden loss of power and sudden added load on different super capacitor capacitances,are simulated.The comparison results show that proposed super capacitor-battery hybrid energy storage devices can not only avoid the capacity waste when battery works alone,but also take good use of high power density and long cycle life of super capacity.In addition,it can be found that the bigger capacity of super capacity is,the longer discharging time is,which satisfy the application requirement.In the end,the actual hybrid energy storage DC system experimental platform is built in laboratory,and the experimental results are basically consistent with simulation results.

关 键 词：混合储能 超级电容 蓄电池 仿真 实验 

分 类 号：TM592[电气工程—电器]