Study on cleaning frequency of grid-connected PV modules based on Related Data Model

To overcome the current limitations of cleaning frequency for grid-connected PV modules, this paper introduces this paper presents an effective approach to determine the cleaning frequency of grid-connected PV modules based on the structure, the establishing procedures and the dynamic updating method of Related Data Model. By calculating the coefficient of cleaning-tolerance of the photovoltaic power plants, the dynamic cleaning frequency is achieved and provides a quantitative basis whether to carry out the cleaning work. The research has a very important significance for improving the efficiency of photovoltaic power plants.