全钒液流电池支路电流的理论计算及实验分析  

Theoretical calculation and experimental analysis of shunt current in all vanadium redox flow battery

作　　者：马军[1] 李爱魁[1] 杨祥军[1] 刘飞[1] 张爱芳[1] 

机构地区：[1]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074

出　　处：《电源技术》2012年第12期1808-1811,共4页Chinese Journal of Power Sources

基　　金：国家电网公司科技项目(DG71-12-003)

摘　　要：提出了钒电池支路电流计算方法,采用MATLAB软件对不同结构7.5 kW钒电池的支路电流进行了理论计算,分析了支路电流的分布规律及影响因素,并对7.5 kW钒电池进行效率测试,结果表明:支管上的支路电流在电堆中心最小,而总管及主路上的支路电流在电堆中心为最大值,同时单电池个数减少有利于减小支路电流;采用模块化结构的7.5 kW电堆(由2组共30个单电池串联而成,即15个单电池组成一个模块)的支路电流明显降低,其能量效率达到74.4%,高于一体化结构电堆(由1组共30个单电池串联而成,即每组30个单电池)的能量效率(69.4%)。The calculation of shunt current in the all vanadium redox flow battery was described and the calculation process was completed by MATLAB software. The regularity of distribution and effect factors of shunt current was reviewed. In addition, the energy efficiency of 7.5 kW stack was tested. The results show that the center battery has the minimum feed port shunt current and the maximum manifold road shunt current. The modular construction has lower shunt current and higher energy efficiency.

关 键 词：全钒液流电池 支路电流 MATLAB结构 

分 类 号：TM911[电气工程—电力电子与电力传动]