摘要
独立型太阳能照明系统存在铅酸蓄电池使用寿命短且弱光条件下系统充电能力不足的缺点,为了改进系统性能,文中设计了基于超级电容-铅酸蓄电池混合储能的太阳能充电器,采用UC3909智能管理芯片实现对铅酸蓄电池具有温度补偿功能的的四阶段充电管理;并利用超级电容器组及升降压转换电路实现弱光充电功能,优化铅酸蓄电池充放电过程,提高系统效率及稳定性。
The stand-alone photovoltaic lighting system has some shortcomings such as lead acid storage battery＇s short-life and the insufficiency of system charging ability.To improve the system＇s performance,this paper designs a solar charger based on supercapacitor-lead acid storage battery＇s＇ hybrid energy storage,then realizes lead acid storage battery＇s＇ four-stage charging management as well as temperature compensation by using UC3909 chip.Meanwhile,using supercapacitors and buck-boost conversion circuit to actualize low-light charge,optimizes lead-acid battery charge and discharge process and improves the system efficiency and stability.
出处
《通信电源技术》
2011年第4期29-32,共4页
Telecom Power Technology
基金
福建省科技计划重点项目(2009H0034)
厦门市科技计划重点项目(3502Z20093033)
泉州市科技计划重点项目(2008G7)
福建省自然科学基金项目(2010J01338)
关键词
超级电容器
混合储能
UC3909
温度补偿
supercapacitor
hybrid energy storage
UC3909
temperature compensation
