积尘对光伏电站发电功率的影响研究综述

概述了积尘对光伏电站发电功率的影响,提出积尘通过影响辐照度、温度来影响短路电流、开路电压和最大功率(包含最大电流和最大电压),并分析了降尘量、降雨量、降雨强度和频率、风速和风向、湿度、地表植被与空气污染、光伏组件表面封存材料的材质、光伏组件放置的倾角和方位角等因素对光伏组件积尘的影响。最后提出:(1)从微观角度深入研究各种因素对光伏组件积尘的影响;(2)加强研究空气质量、气候特点与光伏组件积尘的关系;(3)建立光伏组件发电数据和积尘状况长期远程监测系统;(4)就积尘对光伏组件功率的影响进行专项评估,并考虑清洁积尘系统的设计。

Review on the Impact of Dust Accumulation on Photovoltaic Power Output

This paper summarized the impact of photovoltaic (PV) power output by dust accumulation, dust cumulated on PV modules caused a significant decrease of power output, and analyzed the effects of dust capacity, the amount of rainfall, rainfall intensity and rain frequency, wind velocity and wind direction, humidity, vegetation, air pollution, the material of PV module surface and the inclination, azimuth angle of PV modules on dust accumulation. Finally, some suggestions were presented:(1) to study how various factors affect the dust accumulation on photovoltaic module from the microscopic point of view; (2) to study the relationship between environmental air quality, climate characteristics and dust accumulation on PV modules; (3) to establish long-term and remote monitoring system of power output and dust accumulation; (4) to assess the impact of dust accumulation on PV power output, and design dust cleaning system.