Hello all,
I am simulating a solar thermal system and we would like to have a matched flow control strategy. For this, I tried with type 539 collector and also with type 23 PID, but anyway I could not achieve it. When I use PID, the set point is being checked with the collector outlet temperature and the control signal is sent to the variable pump and during the simulation I only see repeated oscillations between minimum and maximum control signal value. I just PI controller and I tried almost all the possibilities, I know. It would be great if someone has already implemented matched flow control for the collector and could help me out for a solution or share their ideas. Thanks
With Regards
Muthalagappan Narayanan
Hochschule Ulm, Germany