不同天气太阳电池板输出电压全日响应特性

OUTPUT VOLTAGE DIURNAL RESPONSE CHARACTERISTICS OF SOLAR CELL PANELS UNDER DIFFERENT WEATHER CONDITIONS

开展武汉地区不同天气太阳电池板输出电压全日响应特性的实验观测，对水平0°以及正南方30°、60°这3个不同角度布置的太阳电池板输出电压特性开展连续测试，得到3个不同角度太阳电池板在4种天气下的全日响应曲线，提出5个表征太阳电池板日照利用效率的特征参数，分析特征参数的变化规律以及4种天气对这些特征参数的影响。研究发现，天晴或多云时太阳电池板输出电压全日幅值曲线近似为方波，阴雨时则为拱形波，晴天输出电压响应快，输出电压稳定。晴天时输出电压90％峰值持续时间是总持续时间的86％，多云时为84％，阴天时为68％，雨天时为64％，晴天及多云天气太阳电池板日照利用效率较高。

The experimental observation on output voltage diurnal response characteristics of solar cell panels under different weather conditions in Wuhan was carried out. Continuous measurement for output voltage of solar cell panel with horizontal 0°, due south 30° and 60° angles was conducted and the diurnal response curves of solar cell panels under four kinds of weather conditions were reported. Moreover, five characteristic parameters were proposed to characterize sunshine utilization efficiency of solar cell panels, and the variation of characteristic parameters and the influence of four kinds of weather conditions on these characteristic parameters were analyzed. It can be found that output voltage amplitude curves of solar cell panels are approximately square waves in sunny or cloudy days and are arched waves in overcast or rainy days. The output voltage is fast to response and stable in sunny day. In addition, Output voltage 90% peak duration takes up 86% of total duration in sunny day, 84% in cloudy day, 68% in overcast day and 64% in rainy day. The sunshine utilization efficiency is higher in sunny and cloudy days.