Photovoltaic power station performance monitoring and analyzing method

The invention relates to the technical field of light intensity monitoring, in particular to a photovoltaic power station performance monitoring and analysis method, which comprises the following steps: based on photovoltaic power station energy flow data, modeling energy flow by adopting a second law of thermodynamics through an entropy theory and statistical mechanics, and calculating the performance of a photovoltaic power station through a kinetic equation by utilizing a physical modeling method. According to the method, photovoltaic panel energy absorption, energy storage system storage and inverter energy conversion processes are described, an entropy calculation formula is applied, entropy change in conversion and distribution steps is quantized through a Gibbs entropy formula, energy efficiency is evaluated, and an energy flow and entropy change model is generated. According to the method, through the second law of thermodynamics and the entropy theory, the energy flow is accurately modeled, the effic