基于双向变换技术的光伏LED照明系统设计  

Design of Photovoltaic LED Lighting System Based on Bi-directional Converter

作　　者：黄克亚[1] 

机构地区：[1]苏州大学阳澄湖校区,自动控制系,江苏苏州215137

出　　处：《电力电子技术》2012年第8期34-36,共3页Power Electronics

基　　金：江苏省轨道交通开放基金项目(KFJJ2011006);江苏高校科研成果产业化推广项目(JHZD09-49)~~

摘　　要：研究了基于Zeta/Sepic双向变换器的光伏半导体发光二极管(LED)照明系统,提出一种充电控制算法,其既能实现太阳能电池的最大功率点跟踪(MPPT)又能满足蓄电池电压限制条件和浮充特性;设计一种基于HV9930控制芯片的LED恒流驱动电路。构建实验系统,测试表明,控制器可以根据蓄电池状态准确地在MPPT、恒压、浮充算法之间切换,MPPT充电效率较恒压充电显著提升,LED驱动电路恒流效果好。Photovoltaic （LED） lighting system based on bi-directional Zeta/Sepic is discussed.A charging control algo- rithm is proposed,the algorithm uses the maximum power point tracking（MPPT） scheme, and satisfies the requirement of the storage battery＇s voltage limit and float charging characteristic.A LED constant current drive circuit Based on the HV9930 chip is designed.Experimental system is built,and results show that the charging controller can be switched precisely to work in the MPPT charging status, the constant voltage status, or the float charging status ac- cording to the status of battery.Compared with constant voltage status,the efficiency of MPPT status increases signifi- cantly.Stable current effect of LED driver circuit is very well.

关 键 词：发光二极管照明 变换器 充电控制 恒流驱动 

分 类 号：TM615[电气工程—电力系统及自动化]