PV array Series Connection Error

Hello everyone

I designed PV panel Mathematically with (200 w) its working well

but when I want to connect two panels in series its give me an error (exactly error with Controlled current source) ?

how I can solve it kindly ?

for information when I connect them in parallel does not appear that error and it is working well

Answer 1

[Joel Van Sickel]

The issue is how you modelled the solar panel. As you modelled it as a pure controlled current source, you cannot put it in series with another ideal current source. This is because if one current source is set to 2 amps, and the other is set to 1 amps, there is no way to solve the resulting equation of 2 == 1. If you want your solar panel to be capable of being stacked in series, you will need to use a different mathematical formulation. It may be easier to use a pure simscape based model so that you don't have to explicitly use ideal voltage or current sources in series/parallel with each other, or you combine the math of both models together and calculate total current instead of calculating it individually. There are multiple ways to do it, but unfortunately, putting two controlled current sources in series is not a way to do it.