assistance to get iv curve fron a single pv cell

First of all,greetings from Greece. i have real trouble with getting the i-v curve from a solar sell. I've written the function,and it seems right(when i run it,it returns a Ia value). Then i go to the matlab command window and i write: Va=0:0.01:2; plot(va,solar(va,suns,tac)) and what a see on the plot is a straight line and not a curve. PLEASE HELP

[Hossein]

Have you ever work with matlab model of solar cell in simscape?

[vassilis]

Yes i'm currently working on simscape.Everything works smoothly with my PV array but i am trying to find a way how to change the temperature constant.i want the temperature to change through time-i tried to use a signal builder block but the pv array doesn't acccery it as an input.Have you any idea?

Answer 1

[Hossein]

I think you should write Va=0:.01:Voc...