【摘要】 针对光伏面板积灰、影响因素、积灰对面板转换效率的降低效应等问题,综述分析了国内外相关研究成果,总结提出了今后研究的主要方向。介绍了灰尘的来源及组成,着重综述了国内外关于光伏面板积灰形成过程及积灰引起的面板输出效率降低或太阳辐射透过率降低等研究文献,分析了面板倾角、风速风向、灰尘性质、环境湿度等主要因素对光伏面板积灰的形成和面板效率/太阳辐射透过率的影响。总结了基于灰尘性质、降尘、降雨等因素建立的积灰模型及其对面板效率的影响模型。介绍了目前常用的光伏面板清洁技术:电帘除尘和机械除尘。最后,总结了目前研究中存在的不足,并指出了今后应进一步加强积灰实验完整性、灰尘特性、积灰沉积机理、面板除尘清洁技术等方向的研究。更多还原

【Abstract】 Aiming at the problems of PV module dust depositing,affecting factors,the reducing effect on conversion efficiency,the related researches were overviewed and the main researching aspects in the future were proposed.The source and components of dust were introduced.Research documents about the PV module dust depositing process and the PV efficiency decline or solar radiation transmittance decline caused by dust depositing were emphasized and reviewed.The main factors of module angle,wind speed and orientation,dust property,environment humidity,which will influence the dust depositing,PV efficiency and solar radiation transmittance,were analyzed.The dust depositing model and its impacting model on PV efficency from the perspective of dust property,dust falling and raining were summarized.The commonly used PV module cleaning techniques,that is electrode screen dust mitigation and mechanical dust cleaning,were introduced.Finally,the shortages of present research were abstracted and the main research aspects in the future,such as the integrality of the dust depositing experiment,dust characteristics,dust depositing mechanism and PV panel cleaning techniques,were pointed out.更多还原