Feedforward Control of Tank Temperature
Snapshot of the front panel of the simulator:
The system being simulated is a temperature control system based on
feedforward control in addition to feedback PID control from temperature
measurement. The PID controller has already been tuned (as a PI controller, actually) for good stability.
In all the task below, use feedback control in
addition to feedforward control. It is assumed that the simulator runs as
you do the tasks.
- Feedforward control at setpoint
- Add a ramp to the temperature setpoint. What is the steady-state
control error with and without feedforward control?
- Use feedforward control. Adjust the setpoint manually (e.g. like a ramp),
which will give more or less randomly abrupt setpoint changes.
How does the control signal react as compared to a smoother setpoint
ramp, as in task no. a above?
- Feedforward control at disturbance
changes: Change the inflow temperature.
Is the control error be reduced by introdusing feedforward control?
Updated 30. October 2017.