设计了一种包含13层膜系的分频器,建立了考虑太阳张角影响的三维光学模型,研究了分频对半抛物槽式聚光光伏系统的光、热、电性能的影响,得到了系统能量的光谱分布及光伏电池平面能流密度分布.计算结果表明,系统对AM1.5太阳光谱的光学效率为58.7%,对不同聚光镜开口应选择最优电池倾角以获得最均匀的能流密度;采用分频可以降低电池温度提高聚光系统的聚光比以及光电转换效率.
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