Specifications

LQG Regulation: Rolling Mill Example
10-39
'u-x'
'w-ex'
'w-ix'
Regx.outputname
ans =
'u-x'
Px.outputname
ans =
'x-gap'
'x-force'
Regx.inputname
ans =
'x-force'
This indicates that you must connect the first input and second output of Px to
the regulator.
clx = feedback(Px,Regx,1,2,+1) % Note: +1 for positive feedback
You are now ready to compare the open- and closed-loop Bode responses from
disturbance to thickness gap.