MATLAB MODEL PREDICTIVE CONTROL TOOLBOX - S Dokumentacja Strona 102

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3 Designing Controllers Using the Design Tool GUI
3-52
It is good practice to specify the prediction and control horizons such that
P M t t
d max
- D?
,
/
Here, P is the prediction horizon, M is the control horizon, t
d,max
is the maximum delay,
and Δt is the control interval. In the Control interval (time units) box, which specifies
Δt, enter 1. Then, because the maximum ioDelay for the DC model is 8.1 minutes, t
d,max
/
Δt is 8.1. You can satisfy the inequality by setting P = 30 and M = 5. In the Prediction
horizon (intervals) box, enter 30, and in the Control horizon (intervals) box, enter
5.
Now that you have specified the controller horizons, simulate the model to test the
controller performance. In the tree, select Scenarios > Scenario1.
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