MATLAB Based Modelling of SPVA Characterization under Reverse Bias Condition

This paper presents the model of a solar photo voltaic (SPV) module to represent its behaviour in both forward and reverse bias conditions. This complete model arrives from the breakdown mechanisms in SPV cells and calculates the second quadrant parameters. It can be modified to any SPV cell in which reverse characteristic is subjected to avalanche mechanism and those influenced by shunt resistance. The model parameters are determined based on piecewise fitting by conducting suitable experiments. The simple and economic electronic load setup has been presented to verify the model. The model is compared with some experimental characteristics to show the accuracy of the model.