How do I make a current control in simulink?

My goal is to connect an inverter to the mx30 and to have a simulation (program) in which the current from the inverter is the same as it has at the output of the solar panel. I've tried to put a -constant value- simulating the "current from the inverter" and tried to have the same number at the output of the solar panel. I also do not have voltage yet (until sth is connected)...

I know a source can be represented by impedance, current or electric power, so I can vary current in any of these, but I can't

Thanks!