Hello!
I have a model with photovoltaic system with boost converter and I want to implement it in simulink but I don’t understand certain blocks, if you can help me.
For example, for the 3 subsystems who is f(u) and what block should I use for them?

Then I don’t understand if the blocks Tref, Isc, Voc are constant or which block to use for them:

again, above I have the f(u) block, what does it represent?
and last but not least, for the complete scheme, I don’t know how to put the V+ and V- pins to the PV Module block.
I know there are many questions, but I hope you can help me. Thank you in advance!
