Modeling and simulation of a photovoltaic two-diode array simplified model
JIA Wenting
WEI Xueye
ZHANG Junhong
MA Jianguang
Abstract：Two-diode model is the most accurate expression to describe the characters of photovoltaic (PV) cell model.But too many parameters will increase the difficulty of the solution,and reduce the speed of the solution.In this paper,a two-diode simplified model is proposed to solve the above problems,and the corresponding algorithm is designed,which increases the current accuracy of the two diodes,and then solves parameters by the maximum power point tracking method and iterative method.The simulation results are consistent with the output results of the actual test array in different irradiation levels and temperatures.The accuracy of the simplified model is increased by 68％ and 20％ comparing with the single diode model and two-diode Kashif model respectively,and the simulation time is shortened by 63％ and 17％,respectively.Therefore the simplified model can be a fast and accurate research basis for the optimization configures and the maximum power point tracking of photovoltaic power generation system.
Keywords：photovoltaic arraytwo-diode-modelmaximum power point matchingiterative method
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 85-89 )