常用太阳跟踪系统接收辐射量的计算

Calculation of the Received Radiation for Common Solar Tracking Systems

为了解决太阳跟踪系统接收辐射量的理论计算值与实测值偏差较大的问题,本文从任意斜面上太阳光入射角、天顶角和方位角的计算方法出发,阐述了双轴和斜单轴太阳跟踪系统的入射角和方位角的计算方法。并结合太阳散射辐射各向同性的假设,论述了常用太阳跟踪系统所接受辐射量的计算方法,实现了将水平面观测值转化为跟踪系统的有效接收量。将这种基于实测基础上的理论计算结果和完全实测数据进行对比,结果表明该方法能有效的应用于太阳跟踪系统接收辐射量的预测中。

In order to solve the large deviation problem of the received radiation between theoretical values and measured values for common solar tracking systems（ CSTS） which include two-axis and sloped-axis,this article expounds the calculation method of an incident angle,a zenith angle and an azimuth for CSTS from any slope. On the assumption of the isotropic diffuse,it discusses the calculation method of the received radiation for CSTS based on measured horizontal values. It is proved that this method can be applied to forecast received radiation of CSTS through the contrast between fully measured vales and measured-theoretical vales from a test.