折平板等光强反射聚光光伏系统的光学分析

OPTICAL ANALYSIS OF BENGDING-PLATE TYPE CONCENTRATING PV SYSTEM

简要介绍折平板等光强反射聚光光伏系统的设计原理,并建立反射聚光器的光学模型。利用蒙特卡罗光线追迹法对折平板反射聚光系统的聚光性能进行模拟计算,结果表明该系统具有良好的聚光均匀性。建立实验系统进行实验验证,结果符合较好。对系统各参数间的关系以及跟踪误差对系统聚光效果的影响进行计算分析,结果显示折平板反射聚光光伏系统对反射器的跟踪精度要求较低。

The design principle of the bending-plate type concentrating PV system was briefly introduced, and the optical model was developed for the reflector concentrator. The performance of the concentrator was simulated by means of Monte Carlo Ray Tracing Method（MCRT） and the results showed that the concentrated light of the system had a high uniformity. A prototype system was constructed, and the experimental results agreed well with the simulation results. The relationships of parameters of the bending-plate concentrating PV system and the effect on the concentration caused by sun-tracking errors were calculated and analyzed, and the results showed that the tracking accuracy for the bending-plate type concentrating PV system was of less demanding.