应用于聚光发电的复合抛物面聚光系统性能仿真研究

Performance simulation of compound parabolic concentrator system in concentrating photovoltaic

构造了一种新型可应用于太阳能聚光发电的复合抛物面聚光器,根据实际尺寸在SolidWorks软件中建模,利用光学分析软件对其进行了光线追迹分析;研究了随入射偏角的变化,太阳电池接受体上接收入射光的变化情况;通过仿真计算模拟,直观地看到了光束在太阳能电池上所形成的焦斑形状、位置和能量分布随入射偏角的变化趋势。模拟计算结果表明,聚光器有效聚光比约为2.61,在测试范围内随着入射偏角增大太阳能电池表面聚焦光斑强度分布渐趋均匀,结论可为槽式太阳能聚光光伏发电的设计和优化提供参考。

A novel compound parabolic concentrator in concentrating photovoltaic was presented. According to the size of a real device, a 3D model was built by software SolidWorks. Then the optical analysis software was used to analyze the rays tracing in the device. Investigation of the variation of irradiance of the solar cell with deflective incident angle was conducted. Through tracing simulation, the trend of the size, position of the focal spot and the energy distribution with deflective incident angle could be directly observed. The results of simulation showed that effective concentrator ratio was about 2.61. During the measurement, the focused spot irradiation of the solar cell became uniformly with the increase of deflective incident angle. The simulation results could present a useful reference for design and optimization of the solar concentrating photovoltaic system.