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汽车安全与节能学报

汽车安全与节能学报 ›› 2023, Vol. 14 ›› Issue (5): 628-636.DOI: 10.3969/j.issn.1674-8484.2023.05.012.012

• 汽车节能与环保 • 上一篇    下一篇

基于三维光线投射算法的全车太阳辐照度的细致分析

龚友康1,2,3(), 许盛之1,2,3,*(), 王丽朝1,2,3, 宁静1,2,3, 马勍4, 徐雨濛4   

  1. 1.南开大学 电子信息与光学工程学院光电子薄膜器件与技术研究所，天津 300350，中国
    2.天津市光电子薄膜器件与技术重点实验室，天津 300350，中国
    3.薄膜光电子技术教育部工程研究中心，天津 300350，中国
    4.京能源深（苏州）能源科技有限公司，苏州 215000，中国
  • 收稿日期:2023-03-21 修回日期:2023-08-18 出版日期:2023-10-31 发布日期:2023-10-30
  • 通讯作者: *许盛之，高级工程师。E-mail：xusz@nankai.edu.cn。
  • 作者简介:龚友康（1999—），男（汉），四川，硕士研究生。 E-mail：2120210256@mail.nankai.edu.cn。
  • 基金资助:
    天津市研究生科研创新项目(2022SKYZ188);高分卫星遥感数据处理算法与智能化光伏设计技术的研究(22JCYBJC01400)

Detailed Analysis of full vehicle solar irradiance based on 3d ray-casting algorithm

GONG Youkang1,2,3(), XU Shengzhi1,2,3,*(), WANG Lichao1,2,3, NING Jing1,2,3, MA Qing4, XU Yumeng4   

  1. 1. Institute of Photoelectronic Thin Film Devices and Technology of College of Electronic Information and Optical Engineering of Nankai University, Tianjing 300350, China
    2. Tianjin Key Laboratory of Photo-electronic Thin Film Devices and Technology, Tianjing 300350, China
    3. Engineering Research Center of Thin Film Optoelectronics Technology, Ministry of Education, Tianjing 300350, China
    4. Suzhou Jingnengyuanshen Energy Technology Co., Ltd, Suzhou 215000, China
  • Received:2023-03-21 Revised:2023-08-18 Online:2023-10-31 Published:2023-10-30

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摘要：

车载集成光伏可有效减少汽车对化石燃料的依赖，有助于减少二氧化碳的排放，是推动可持续交通发展的一项重要措施。为了评估汽车全车的太阳能资源以及优化车上集成光伏系统的设计，该文分析了全车的辐照度，并计算出汽车的全年累计辐射。基于其三角网格面模型，依据Kasten晴空模型计算得到静态车辆特定时刻和位置的水平面辐射，利用三维空间中的光线投射算法分析倾斜面上的直射辐射，结合Perez模型计算其散射辐射，获得每个三角形网格上的总辐射，得出全车的辐照度分布；并计算分析了车辆在不同地区、不同行驶情况下所受到的辐射能量情况，以便为车载高效光伏系统的精细设计提供参考依据。结果表明：汽车各部分所受辐照度差异较大，引擎盖、车顶、前后挡风玻璃、左右侧车身以及车窗各部分的全年累计辐射差别为15.8%~42.5%；全年汽车全车的平均辐射能量约为水平面的75%，且在汽车处于不同朝向时的辐射能量差异不超过5%。

关键词: 车辆集成光伏, 太阳辐射, 光线投射, 三角网格模型

Abstract:

Vehicle integrated photovoltaic(VIPV) can effectively reduce the dependence of vehicles on fossil fuels, help to reduce carbon dioxide emissions, and it is an important measure to promote the development of sustainable transportation. The irradiance of the whole vehicle was analyzed, and the annual cumulative radiation of the vehicle was calculated for evaluating the solar energy resources of the whole vehicle and optimizing the design of the integrated photovoltaic system on the vehicle. Based on the triangular mesh surface model, the global horizontal irradiance of a static vehicle at a specific time and position was calculated according to Kasten Clear Sky model, and then the direct normal irradiance on the inclined surface was analyzed by using the ray-casting algorithm in 3D space, and the diffuse irradiance was calculated combined with Perez model. Finally, the global irradiance on each triangular mesh and the irradiance distribution of the whole vehicle was obtained. The radiation energy of the vehicle in different regions and different driving conditions was also calculated and analyzed, providing a reference for the fine design of the vehicle efficient photovoltaic system. The result shows that the irradiance of different parts of the car is greatly different, the cumulative radiation energy throughout the year of the hood, the roof, the front and rear windshields, the left and right sides of the car and the windows varies from 15.8% to 42.5%, and the average radiation energy of the car is about 75% of the horizontal plane, and the difference of radiation energy is not more than 5% when the car is in different orientations.

Key words: vehicle integrated photovoltaic, solar radiation, ray casting, triangle mesh model

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