山地光伏电站各区域光伏组件的温度差异对比

Temperature Difference of Polycrystalline Photovoltaic Modules in Mountain Photovoltaic Power Station

太阳电池组件的工作温度影响其发电效率,为了研究工况下的组件温度情况,对某山地光伏电站的实证对比系统的数据进行分析,对比了在不同的辐射、气温、风速等气候条件下,电站内不同位置区域的多晶光伏组件的温度差异.结果显示,高风速条件下电站内各区域气温比较均匀,差值较小;低风速时,电站区域内的热交换减弱,而气温差值增大;电站中不同位置的太阳电池组件的温度差异明显,温差在高辐射强度时增大,各个区域的阵列内部组件温度差最高可达到5.95℃.

The operating temperature of the solar module affects its power generation efficiency.In order to obtain the temperature of the components under working conditions,it is analyzed the data of the empirical comparison system of a mountain photovoltaic(PV)power station,and compared the temperature differences of polycrystalline PV modules in different locations in the power station under different climatic conditions such as radiation,atmospheric temperature and wind speed.The results show that the temperature in each area of the power station is relatively uniform under high wind speed conditions,and temperature difference is small;when the wind speed is low,the heat exchange in the power station area is weakened,and the temperature difference is increased.The temperature difference of the solar cell modules at different positions in the power station is obvious,and the temperature difference of the internal components of the array in each region can reach up to 5.95℃,and the temperature difference increases at high radiation intensity.