Photovoltaic panel dust accumulation degree evaluation method based on photovoltaic module power generation efficiency estimation

• Main Authors: SU RAN, ZHENG LINGWEI, DONG ZHIQIANG, WU HAO
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention relates to a photovoltaic panel dust accumulation degree evaluation method based on photovoltaic module power generation efficiency estimation. Aiming at the problem that the judgment condition of the photovoltaic operation and maintenance dust removal operation is not objective, the invention provides a method for judging the execution opportunity of the dust removal operation of a photovoltaic panel. According to the method, actual factors such as photovoltaic power generation efficiency, effective utilization of water resources and short-term weather types are comprehensively considered, and different from common methods such as experience judgment and timing execution, the influence of human subjective experience is weakened, and whether dust removal operation is executed or not is determined through a data driving method. Generating power comparison under different conditions is achieved mainly through generating power temperature factor correction and device attenuation compensation, the d