环境因素影响下的光伏系统出力特性分析

PV System Output Analysis of Environmental Factors Affect

光伏系统出力随环境变化而呈现出随机波动性对于光伏系统的并网造成了影响,因此研究光伏电站在环境因素影响下的出力特性对于提高光伏电站的运营管理水平和接入电网水平具有重要意义。通过分析光伏发电工作原理,构建了阵列工程数学模型,明确了影响系统出力的环境参数。对不同典型日下的光伏系统出力特性进行分析,并对各环境因素和光伏系统出力进行相关性分析和光伏系统的效率计算,得到环境因素对光伏系统出力影响。结论为太阳辐照度对光伏系统出力的影响最大;电池板温度对光伏系统出力的影响次之;空气湿度对光伏系统出力有影响,但可忽略。

The PV system output changes with environment,and showing impact of a stochastic volatility to PV grid- connected power generation,so study the characteristics of PV system under the influence of environmental factors to improve operational management of photovohaic power plants connected to the grid level of significance. By analyzing the inner workings of solar cells, the mathematical model was built to make sure the environmental factors which have affect to the system. The result shows that the solar irradiance impacts on output of PV system most ;influence of tem- perature on PV system panels effortless followed;air humidity affects the output of the PV system, but can be ig- Bored.