Hi erverybody. My question is related on how to use Feedforward to add a value to the CV of a PIDE intruction. I think is not easy and it is not documented enough in rockwell automation website.
Explanation of the process:
PIDE level controller of a boiler that its CV is the SP ( Scaled) of the Flow PIDE which feeds water to the boiler, in other words its a cascade control.
The problem is that the fluctuations of the steam comsumtion afects a lot in the beavior of the control and PIDE contants (Gain and integral) are not efficient for big and fast variations.
I think in a formula ( k x steam flow) to add to the feedforward of the level PIDE controller, but need some help in how to do it.
thanks.
Explanation of the process:
PIDE level controller of a boiler that its CV is the SP ( Scaled) of the Flow PIDE which feeds water to the boiler, in other words its a cascade control.
The problem is that the fluctuations of the steam comsumtion afects a lot in the beavior of the control and PIDE contants (Gain and integral) are not efficient for big and fast variations.
I think in a formula ( k x steam flow) to add to the feedforward of the level PIDE controller, but need some help in how to do it.
thanks.