电源学报2024，Vol.22Issue(2)：175-182,8.DOI:10.13234/j.issn.2095-2805.2024.2.175
积灰对光伏组件性能影响的试验研究及数值模拟
Experimental Study and Numerical Simulation of Influence of Ash Deposition on Performance of Photovoltaic Modules
吕玉坤 1周庆文 1魏子安 1赵伟萍 1汪岳池1
作者信息
- 1. 华北电力大学能源动力与机械工程学院,保定 071003
- 折叠
摘要
Abstract
The influence of ash deposition on the output characteristics of photovoltaic(PV)modules and the deposi-tion rule of pollution particles on the modules'surface are studied,which are helpful for formulating an ash removal scheme and improving the efficiency of photoelectric conversion.The PV array on the roof of a fan hall in North China Electric Power University is taken as the research object,and an artificial ash distribution experiment was carried out to explore the influence of different ash deposition amounts on the output power,current and voltage of modules.To deter-mine the influence of one single factor on the deposition of pollution particles,a numerical model of particle deposition is established using COMSOL under the same conditions as those in the natural deposition test of PV modules,and the in-fluences of wind speed,humidity,particle size and pollution concentration on the deposition of pollution particles on the surface of PV modules are simulated and analyzed.Test results show that ash deposition has little influence on the work-ing voltage,but a great influence on the output power and working current.When the ash deposition density is 5.07 g/m2,the changing rates of output power,current and voltage are 8.71％.6.48％and 0.40％,respectively.Simulation results show that when other conditions are the same,the deposition amount of particles decreases first and then increases with the growing wind speed and particle size,and the minimum value is reached at the wind speed of 3 m/s and particle size of 15 μm.Under the same conditions,the particle deposition amount increases with the growing humidity and pollution concentration.关键词
光伏组件/输出特性/积污特性/试验研究/数值模拟Key words
Photovoltaic(PV)module/output characteristics/fouling characteristics/experimental study/numerical simulation分类
能源科技引用本文复制引用
吕玉坤,周庆文,魏子安,赵伟萍,汪岳池..积灰对光伏组件性能影响的试验研究及数值模拟[J].电源学报,2024,22(2):175-182,8.
