基于数字孪生的农光互补研究

【目的】解决农光互补在大范围山地地形中精确调节难、实时监测难、巡查监管难等痛点问题。【方法】从具体的农光互补项目入手介绍了其基本情况,并阐述了该项目的数字孪生整体架构,利用无人机或卫星云图的方式解决了大面积地形图的刻画问题,进行了UI设计和虚实结合的数据映射分析,最后在对光伏板进行数学建模的过程中重点考虑了太阳光照和电池板温度这两个影响最大、最重要的参数。【结果与结论】本研究重点解决了大面积地形图建模、数据映射、可视化大屏的信息制作等问题,为农光互补领域监控难、巡查难问题提出了新颖的解决方案,有利于持续推进农光互补项目建设,实现生态效益和经济效益的双赢。

Comparison of Different Solutions for Blocking Diode Applications in a Photovoltaic Panel under Varying Ambient Conditions

We characterized a crystalline silicon based mini-module under varying ambient conditions, developed a PSPICE model for this panel, including temperature and irradiation dependence and applied this model to the simulation of the impact of a blocking diode under different shadowing conditions. Different blocking diodes were examined, like germanium and silicon homojunction diodes and silicon Schottky diodes and compared to ＂intelligent＂ diodes, consisting of operational amplifiers with MOSFET switches. The simulations indicate a strongly reduced power loss in a panel integrating the new ＂intelligent＂ blocking diodes even when compared to silicon Schottky diodes, as the best performing traditional blocking diodes.