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Optical Design of an Off-axis Mirror Based Solar Concentrator

机译：基于轴镜的太阳能集中器的光学设计

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It is presented the optical design of a mirror based solar concentrator operating at concentrating factors higher than 850suns with an optical efficiency greater than 83% and an angular acceptance of at least ±0.5°. The optical system consists of an off-axis primary mirror optimized to work in conjunction with a secondary optical element which homogenizes the light on the photovoltaic (PV) cell and also increases the acceptance angle of the solar concentrator. Since in a high concentrating system the collected optical radiation can impinge on the PV cell also at high incidence angles, during the optical design and optimization particular attention was paid to reduce the number of rays impinging on the PVcell at high incidence angle. Furthermore the angular response of the PV cell was included to calculate the efficiency value of the whole system and to calculate the spatial distribution of the photocurrent in the different subcells constituting the multi-junction solar cell
机译：介绍基于镜子的太阳能聚光器的光学设计，以高于850sUN的浓缩因子，光学效率大于83％，直角接受至少±0.5°。光学系统由轴轴主镜组成，优化以与二次光学元件结合使用，其均匀化光伏（PV）电池上的光并增加太阳能集中器的接受角度。由于在高浓缩系统中，所收集的光学辐射也可以在高入射角处撞击PV电池，在光学设计期间，在光学设计期间，特别注意的是，在高射角处减少撞击PVCell的光线的数量。此外，包括PV电池的角度响应以计算整个系统的效率值，并计算构成多结太阳能电池的不同子单元中的光电流的空间分布

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