Analysis method and visualization of ASH loss degree of photovoltaic modules considering power attenuation

A method for analyzing the degree of dust damage of photovoltaic modules, taking into account power attenuation, is proposed based on the operational data and self parameter data of photovoltaic modules. This method first groups the photovoltaic modules, and then calculates the power loss caused by dust accumulation in the photovoltaic modules based on the voltage and current data during operation, the number of photovoltaic panels, and the linear standard power curve. Based on the actual photovoltaic construction plan, the calculation results are visualized, achieving rapid positioning of dust damaged modules.