Abstract

In the current work properties of a solar radiance concentrator with Fresnel lens made of Elastosil RT604 silicon made by Wacker have been investigated. The dependence of concentrator focal distance on temperature has been determined. Impact of variation of temperature-dependent concentrator focusing properties on the magnitude of short current of photovoltaic submodule has been determined by direct measurements using solar simulator. Using formalized model of modules based on the studied concentrator and solar cells with three and six p–n-junctions dimensions of a solar image in a wavelength range corresponding to an absorption profile of individual p–n-junctions has been calculated for the temperature range 10–60°C. It has been concluded that in the case of three p–n-junctions the minimum size of solar image at focal plane was 4.7 mm with the distance between the concentrator and solar cell being equal to 106.25 mm, and in the case of six p–n-junctions, the minimum size was 4.8 mm with the distance between concentrator and solar cell being equal to 106.5 mm.

中文翻译：

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宽温度范围内光伏组件聚光器聚焦特性研究

摘要

目前，我们对采用瓦克 (Wacker) 制造的 Elastosil RT604 硅制成的菲涅耳透镜太阳辐射聚光器的工作特性进行了研究。聚光器焦距对温度的依赖性已经确定。温度相关的聚光器聚焦特性的变化对光伏子模块短路电流大小的影响已通过使用太阳模拟器的直接测量来确定。使用基于所研究的聚光器和太阳能电池的模块形式化模型，在与单个pn结的吸收曲线相对应的波长范围内，具有太阳图像的三个和六个pn结尺寸，已计算出温度范围10–60°C。结论是，在三个p-n结的情况下，焦平面处太阳图像的最小尺寸为 4.7 毫米，聚光器和太阳能电池之间的距离等于 106.25 毫米，而在六个p-n结的情况下，焦平面处太阳图像的最小尺寸为 4.7 毫米。n结，最小尺寸为4.8毫米，聚光器和太阳能电池之间的距离等于106.5毫米。