Simulink PV array block output NaN
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I am trying to simulate MPPT using a fuzzy logic controller. I am new to simulink and I tried to use the PV Array block from Simscape/Electrical. The problem I have with this block is that when I run the simulation, the voltage and the current at the output of the PV Array are NaN, except for a very short period of time at the beginning of the simulation.
I tried to simulate the PV array block alone and I get the same problem, even if I connect a voltage measurement at +- terminals the result is still NaN. I also checked the box for breaking the algebraic loop but my problem is not solved.
If anyone has an idea how to solve this problem I would be grateful, I have not found someone with the same problem so far.
Thank You!

4 Comments
fares dihmes
on 1 Dec 2021
Any answer for this problem? i got the same issue
Pratyush Das
on 22 Nov 2022
I have the same irritating problem. For me using variable time step solver is not an option.
Nithin
on 10 Dec 2024
What version of matlab u r using bro...I'm doing the same thing for my btech project and I can't find the pv array block itself. Mine is 2013a version . How or where can I find the pv array block
Jefferson Javier
on 6 Oct 2025
Did yoy find a answer for this problem or still not ?
Answers (1)
Aakash Garg
on 30 Mar 2021
1 vote
You can refer to the following MATLAB answer-
This might resolve the issue you are facing.
7 Comments
Sana Shetty
on 25 Jul 2021
I am facing similar problem, getting nan in the output....tried the solution mentioned in MATLAB , dint work...anyone found solution to this
Amal P Santhosh
on 16 Oct 2021
did you got the answer?
Xiao Ziyang
on 22 Dec 2021
I got the same problem, does anyone find the solution?
Ahmed sakr
on 8 May 2022
click on solar pv, go to advanced and unclick the break algebraic loop, this might help
syed Khawar Shah
on 15 Jul 2022
Thnx it worked
Maurice Cult
on 20 Feb 2024
thank you so much
Sarala Gurijala
on 25 Oct 2025
uncheck of 'break algebraic loop' is working. thank you
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