采用电容降压恒电流蓄电池充电机理研究  

Study on charging mechanism of constant current battery with capacitor step-down

作　　者：林勇 Lin Yong(Fujian Academy of metrology,Fuzhou Fujian,350003)

机构地区：[1]福建省计量科学研究院,福建福州350003

出　　处：《电子测试》2020年第17期48-50,共3页Electronic Test

摘　　要：介绍了一种采用电容降压的恒电流蓄电池充电机理研究,通过建立电容两端非正弦周期电压的数学模型,采用傅里叶级数分析方式求得电容两端的基波电流和谐波电流来间接得到蓄电池充电电流的有效值。通过理论分析计算得出在对不同电压等级的蓄电池充电中,其充电电流的有效值相等的结论,并阐述了该电路是以恒电流的方式给蓄电池充电。This paper introduces a study on the charging mechanism of a constant current battery with capacitor step-down.By establishing the mathematical model of non sinusoidal periodic voltage at both ends of the capacitor,the fundamental current and harmonic current at both ends of the capacitor are obtained by Fourier series analysis to indirectly obtain the effective value of the charging current of the battery.Through theoretical analysis and calculation,it is concluded that the effective value of charging current is equal in the charging of batteries with different voltage levels,and it is expounded that the circuit charges the battery in the way of constant current.

关 键 词：电容降压 蓄电池 傅里叶级数 机理 

分 类 号：TM912[电气工程—电力电子与电力传动]