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中文摘要：
建立了考虑太阳张角影响的抛物槽式二次反射聚光分频系统的光学模型，给出了系统的集中比和太阳影像尺度与聚光镜相对口径和分频反射镜的相对焦距的无量纲关系式，并绘制了设计参数关系图表，举例设计了两种二次反射聚光分频系统。本文推导的结果对二次反射聚光太阳能光伏系统的光学结构设计有实际指导意义。
英文摘要：
An optical model is developed for the two-stage reflective spectral beam splitting parabolic concentrating PV system, considering the influence of the solar intercept angle. Non-dimensional relations between geometry concentration ratio of the system, the size of the solar image and the relative aperture of the primary concentrator mirror together with the relative focal length of the spectrum splitting filter, are derived from the model. Charts of these relations are made, and two splitting systems with different concentration ratio are presented. The results are helpful for the development of the solar utilization and the optical design of the two-stage reflective concentrating PV system.
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