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为提高条形平面镜聚光器的集光率及镜片利用率,推导出极限入射角时镜片间不遮挡的最小间距公式,建立数学模型,对各设计参数进行分析与优化。计算结果表明:镜片数目及宽度对聚光器尺寸及性能影响相对较小;极限入射角和接收器安装高度对聚光性能影响较大,极限入射角的设定也决定了聚光系统的运行时间和结构尺寸。以SunPower公司的背结聚光硅太阳电池组件作为接收器,对聚光器进行优化和光学模拟。模拟结果表明:电池表面辐照度分布均匀,平均为15.5kW/m2,系统发电功率可达2.65kW。
In order to improve the etendue and lens efficiency of strip mirror condenser, the formula of the minimum distance between the lenses when the limit incident angle is deduced is deduced. The mathematical model is established and the design parameters are analyzed and optimized. The results show that the number and width of the lens have a relatively small influence on the size and performance of the condenser. The extreme incident angle and the receiver installation height have a great influence on the condenser performance. The setting of the limiting incident angle also determines the operation of the condenser system Time and structure size. Optimize and optically simulate the condenser with SunPower’s back-junction condenser solar cell module as a receiver. The simulation results show that the irradiance distribution on the cell surface is uniform with an average of 15.5kW / m2 and the power generation of the system can reach 2.65kW.