How Can Integral Feedback Improve Model Predictive Control in Boiler Systems?

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syed334
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Hi All,

I am applying model predictive control to the ASTROM & BELL BOILER model, I am facing difficulty in handling constant disturbance, I am unbale to reject constant input disturbance, due to which my output drum level is having steady state error, I have applied INtegral + MPC to over come STEADY STATE ERROR, but still DRUM LEVEL is not regulating back to zero
( reference value) , then I have applied feedforward + Mpc, still iam not able to track my output, can anyone help me in solving this problem, by FEEDFORWARD+MPC coding or any other way.
U can suggest any paper referring this as well.

Thanking You,
Syed
 
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Where is the feedback part of the control? If you want zero stead state error, then there must be some integral feedback component.