【摘要】 文章利用在辽河入海口地区测得的太阳辐射数据，比较了现有的17个倾斜面太阳辐射计算模型在不同天气工况下的准确性。分析结果表明：阴天工况下Gueymard模型精度最高，其次是各向同性模型；多云工况下，Willmott模型与实测值较为吻合；晴天工况下，Reindl模型的综合表现状况最好；在不区分天气工况下，Willmott模型和Reindl模型的精度较高。同时，通过改写Reindl模型的各向同性组分建立新的计算模型，用实测数据分析在不区分天气条件下新模型的精度，结果显示新模型的计算精度明显提高。利用logistic函数建立小时散射辐射分数与小时晴空指数的关系，并采用新模型计算辽河入海口地区冬季不同倾斜面单位面积所接收的太阳辐照量，结果表明，对于冬季的辽河入海口地区，太阳能采集装置布置的最佳方位角为-20～30°、倾角为50～70°，总太阳辐射量最高可达1 200 MJ/m~2。更多还原

【Abstract】 This study countes the existing 17 inclined planes solar radiation calculation models and compares the accuracy of each model under different sky conditions by using the solar radiation data measured in Liaohe estuary area. The results show that the accuracy of Gueymard model is the highest, followed by isotropic models under overcast condition. The accuracy of Willmott model and the comprehensive performance of Reindl model is the best under cloudy condition and sunny condition respectively. The accuracy of Willmott model and Reindl model is high when the sky conditions are not distinguished. At the same time, the study establishes a new calculation model in which the measured data are used to analyze the accuracy of new model without distinguishing sky conditions by rewriting the isotropic components of Reindl model. The results show that the accuracy of the new model is significantly improved. By using logistic function, the study also creates the model between hourly scattered radiation fraction and hourly clear sky index. Thus the solar radiation received per unit area of different inclined planes in winter in Liaohe estuary area is calculated by using the new model. The final results show that for Liaohe estuary area in winter, the optimal azimuth angle and inclination angle of solar energy collection device are-20～30 ° and 50～70 °, the total solar radiation in winter can reach up to 1 200MJ/m~2.更多还原