中文摘要：

采用光线追迹法，建立矩形阵列布置下碟式光热太阳能电站聚光器任意时刻空间状态数学模型和聚光器利用率动态模型，通过算例验证模型的正确性，分析阵列中任意聚光器不同时刻的采光遮挡特性，探讨布置参数对聚光器利用率的影响。结果表明：电站阵列布置夹角和布置间距是影响聚光器利用率的主要因素，布置夹角的取值对聚光器利用率影响显著，增大布置间距只能在一定程度上提高聚光器的利用率，且利用率随间距的进一步增大其效果趋于不明显。

英文摘要：

The space state mathematical model and utilization rate dynamic model of the concentrator for dish solar thermal power station at any time under rectangular array layout were created using the ray tracing method. And correctness of the model was confirmed by examples, the light blocking characteristics of any concentrator in array in different time were analyzed, and the influence of layout parameters on the concentrator utilization rate was discussed. The results show thated layout intersection angle and layout gap of array in power station are major factor influencing concentrator operating factor, the value of layout intersection angle has a distinct influence on concentrator operating factor while layout gap only can enhance concentrator operating factor at some extent and it has no obvious effect even further increasing the gap.