Simulink Control Design™ - MathWorks

(Tuis.) #1

By default, closed-loop pole locations of the tuned system are constrained to satisfy Re(p)
< –10–7. Use the MinDecay option of systuneOptions to change this constraint.


Blocks — Tuned values of tunable blocks and parameters
structure


Tuned values of tunable blocks and parameters, returned as a structure.


In case of multiple runs, you can try the results of any particular run other than the best
run. To do so, you can use either getBlockValue or showTunable to access the tuned
parameter values. For example, to use the results from the third run, type
getBlockValue(st,Info(3).Blocks).


LoopScaling — Optimal diagonal scaling for evaluating MIMO tuning goals
state-space model


Optimal diagonal scaling for evaluating MIMO tuning goals, returned as a state-space
model.


When applied to multiloop control systems, tuning goals such as
TuningGoal.LoopShape and TuningGoal.Margins can be sensitive to the scaling of
the individual loop transfer functions to which they apply. systune automatically corrects
scaling issues and returns the optimal diagonal scaling matrix d as a state-space model in
info.LoopScaling.


The loop channels associated with each diagonal entry of D are listed in
info.LoopScaling.InputName. The scaled loop transfer is D\L*D, where L is the
open-loop transfer measured at the locations info.LoopScaling.InputName.


wcPert — Worst combinations of uncertain parameters
structure array


Worst combinations of uncertain parameters, returned as a structure array. (Applies for
robust tuning of control systems with uncertainty only.) Each structure contains one set of
uncertain parameter values. The perturbations with the worst performance are listed
first.


wcf — Worst objective value
positive scalar


Largest soft goal value over the uncertainty range when using the tuned controller.
(Applies for robust tuning of control systems with uncertainty only.)


systune
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