摘要
提出一种适用于微光条件下的新的太阳电池"五参数模型"求解方法,通过把求解的计算结果与实测结果进行对比分析,验证该方法可准确预测太阳电池的输出特性。同时把基于此方法建立的电池模型用于电路设计PSPICE仿真,其仿真结果与计算结果几乎一致,为微光能量采集电源管理电路设计提供了理论基础和仿真工具。基于该建模方法设计一种微光条件下的能量采集电源管理系统,它在光强为200lx,输入功率低至45μW条件下,成功驱动瞬时最大功率为85mW的无线传感器节点工作。
An improved solution method for five-parameter model of solar cell under indoor faint light environment was proposed. By comparing the calculated results with the measured results under different light intensity illumination, the proposed modeling method was proved to be accurate for predicting the output characteristics of solar cell. Meanwhile, through applying this proposed model in circuit design simulation, it can be seen that the simulated results are almost the same with the calculated results, which provides the theoretical foundation and simulated tool for the power management circuit design. Finally, a micro-light energy harvesting and management system was developed particularly by using the proposed modeling method, which drove the wireless sensor node with maximum power of 85mW successfully while the input average power was as low as 45μ W under lower light illumination （200lx） conditions.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2014年第2期253-257,共5页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(61074177)
重庆市自然科学基金(CSTC 2009BB2034)
关键词
微光能量采集
无线传感器节点
太阳电池模型
电源管理
micro-light energy harvesting
wireless sensor node
solar cell model
power management
