An Improved Double-diode Model Based Simulation Method for PV Modules

As a vital phase prior installation, the application of PV module simulation has attracted much attention. In the current study, cell-level parameters are crucial. However, manufacturers only provide a datasheet of the module which is far from sufficient for simulation. This paper proposes a method that can derive seven parameters of PV cells' double-diode model from datasheets, and an improved iterative method are applied to calculate output characteristics of PV modules. Simulation results under different conditions were compared with real test data. It is concluded that the proposed method can realize accurate parameter extraction and simulation of PV modules.