环境风耦合下复合抛物面聚光光伏系统性能模拟  

Simulation on Performance of Compound Parabolic Concentrating Photovoltaic System Under Environmental Wind Coupling

作　　者：徐世杰 吴双应[1,2] 肖兰[1,2] 陈志莉 XU Shijie;WU Shuangying;XIAO Lan;CHEN Zhili(Key Laboratory of Low-grade Energy Utilization Technologies and Systems(Chongqing University),Ministry of Education of China,Chongqing 400044,China;School of Energy and Power Engineering,Chongqing University,Chongqing 400044,China;College of Environmental Science and Engineering,Guilin University of Technology,Guilin 541006,China)

机构地区：[1]重庆大学低品位能源利用技术及系统教育部重点实验室,重庆400044 [2]重庆大学能源与动力工程学院,重庆400044 [3]桂林理工大学环境科学与工程学院,桂林木541006

出　　处：《工程热物理学报》2025年第2期527-533,共7页Journal of Engineering Thermophysics

基　　金：广西自然科学基金重点项目(No.2024GXNSFDA010068)。

摘　　要：通过建立光–热–电–环境耦合模型和提出计算电效率的区域离散积分方法,采用蒙特卡洛射线追踪法研究了倾角(θ)对复合抛物面聚光光伏(CPC-PV)系统光学性能的影响,并耦合有限体积法研究了θ和环境风向角(α)对CPC-PV系统热电性能的影响。结果表明,在θ变化范围内,系统的光学效率稳定,平均光学效率为0.92,但辐照分布的均匀性随θ的增大快速下降。存在环境风时,相同θ下随着α增大,晶硅电池层的平均温度和温度分布的均匀性(ζSC)均表现出非单调的变化趋势,在相同α下随着θ的增大,ζSC急剧下降。本研究提出的区域离散积分法考虑了阴影区域和非均匀温度分布对电性能的影响,使用本方法计算的瞬时电效率与平均温度法的最大差异为11.01%。An optical-thermal-electrical-environmental coupling model was established and the regional discrete integral method for calculating electrical efficiency was proposed to investigate the effects of tilt angle(θ)on the optical performance of the compound parabolic concentrating photovoltaic(CPC-PV)system by Monte Carlo ray tracing,and further numerically the effect ofθand ambient wind direction angle(α)on the thermal and electrical performance by coupling finite volume method.The results show that the optical efficiency of the system is stable over the range ofθvariation,with an average optical efficiency of 0.92,but the uniformity of irradiance distribution decreases rapidly asθincreases.Under ambient wind condition,at the sameθ,asαincreases,the average temperature and the uniformity of temperature distribution(ζSC)on the silicon cell layer show a non-monotonic trend,and theζSCdecreases sharply with increasingθat the sameα.The regional discrete integral method proposed in this study accounts for the effects of shadow areas and non-uniform temperatures on electrical performance.The maximum difference between the instantaneous electrical efficiency calculated by using the present method and the average temperature method is 11.01%.

关 键 词：复合抛物面聚光光伏(CPC-PV) 光-热-电-环境耦合 倾角 风向角 热电性能 

分 类 号：TK121[动力工程及工程热物理—工程热物理]