Using the Matlab M-file to simulate the photovoltaic array output

After learning the photovlaic array structure and analyzing the influence of the solar irradiation and ambient temperature, at first we used the Matlab M-file to simulate this part and test the output rather than use the Matlab-simulink GUI environment to build the circuit directly.

We edited the code which contains the information PVA equivalent circuit and the influence of the irradiation and the temperature. 

The following figures show the result of the above procedure. The first figure is the current-voltage characteristic of the PVA during the operation and the second figure is the PVA power-voltage characteristic:

The theoretical characteristic curve is shown below:

It can be seen that the simulation result matches theoretical value. Here the cure fitting factor A is assigned to be 110. The value A is used to change magnitude of output voltage to adjust the I-V characteristics. With the different test value of A, we can obtain different maximum powers.