An iterative method was implied to extract the solar cell parameters of the single-diode equivalent circuit,using only four electrical parameters (the open-circuit voltage,short-circuit current and voltage and current at maximum power point) provided by the manufacturer and a semi-empirical parameter.The influence of the irradiance and cell temperature on the model parameters was taken into account which makes the model adaptable to irradiance and temperature conditions other than STC (Standard Testing Conditions).A simulation progTam was built to evaluate the proposed model.The comparison of the experimental curves and simulation curves showed good reliability and accuracy of the proposed model.The MAPE (mean absolute percentage error) of 5 points of interest is less than 2% at STC,and less than 5% at other conditions.
solar cellmathematical modelparameters extractionnumerical iterationI-V characteristics