太阳能微能源系统最大功率收集性能分析  

Maximum power harvesting performance analysis of micro-solar power systems

作　　者：尹文卓 刘伟 谢健 罗嵘[2] 胡顺仁 YIN Wen-zhuo;LIU Wei;XIE Jian;LUO Rong;HU Shun-ren(School of Electrical and Electronic Engineering,Chongqing University of Technology,Chongqing 400054,China;Department of Electronic Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]重庆理工大学电气与电子工程学院,重庆400054 [2]清华大学电子工程系,北京100084

出　　处：《电源技术》2020年第5期710-713,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金(61601069);重庆市基础研究与前沿探索项目(cstc2017jcyjAX0254);重庆市教委科学技术研究项目(KJ1600935)。

摘　　要：基于太阳能的微能源系统是解决物联网室外供电问题的有效手段,而目前尚缺乏对其性能的全面对比分析。搭建了五种常用的微型太阳能收集系统,在相同条件下进行了测试,并对其能量收集效率进行了分析。对五种收集系统的电路规模、硬件成本及功耗等关键指标进行了对比。研究发现,虽然最大功率点跟踪是保证太阳能收集效率的必要条件,但不同的最大功率点跟踪电路的能量收集效率差异较大。取决于太阳电池板的参数和所用的电路结构,收集的能量相差5.6%~19.7%。Micro-solar power system is an effective means for outdoor power supply of Internet of Things.However,there is a lack of comprehensive comparison for the performance of these systems.Five frequently-used micro-solar energy harvesting systems were built and tested under the same conditions.Then,their harvesting efficiency were analyzed.Meanwhile,key metrics of these systems,including circuit scale,hardware cost and power consumption,were compared.Experimental results show that although maximum power point tracking is necessary for effective energy harvesting,efficiency of different maximum power point tracking circuits differs greatly.Depending on the parameters of solar panels and circuit structures used,the harvested energy differs by 5.6%~19.7%.

关 键 词：物联网 微能源系统 太阳能收集 电路结构 最大功率点跟踪 性能分析 

分 类 号：TM914[电气工程—电力电子与电力传动]