A NEW MODEL FOR IV CHARACTERISTIC OF SOLAR-CELL GENERATORS AND ITS APPLICATIONS

A new model is presented for accurate simulation of the external (I-V) characteristic of solar cells generators and the model is applied to direct analytical evaluation of the maximum power points, without involving time consuming numerical techniques. The model is compared with the traditional (I-V) characteristic, which is chosen from the published literature, and very satisfactory match is obtained between the two. The new model lends itself for easy analytical manipulations. To this end it is applied to resistive load and closed form solution is obtained for the performance which is not readily obtainable from the traditional (I-V) characteristic.