Modeling of Distributed Photovoltaic Power Generation Considering Uncertainty Factors

A modeling approach combining mathematical model and data driven of photovoltaic (PV) power generation is proposed to address the problem of the impact of uncertainties on distributed PV power generation. In order to accurately simulate the output characteristics of distributed PV under different conditions, the two-diode model is modeled by SIMULINK based on the established mathematical model of a two-diode solar cell. Starting from the basic information of each PV cell in the PV module, the series-parallel theory of the circuit is applied to establish the electrical model of the PV module. The uncertainty factor of dust accumulation on the surface of photovoltaic panels is used as an example to start the relevant experiments, and the experimental data are compared and analyzed. The uncertainty of distributed PV power generation is inscribed by the solar radiation transmittance loss value of the shade, and the PV power generation modeling method under the uncertainty is given. The experimental results show that the method can more accurately solve the PV generation problem under uncertainties.