open-loop configuration created by opening feedback loops at the locations you
identify. For example, to evaluate the tuning goal with an opening at a location named
'x', click Add signal to list and select 'x'.TipTo highlight any selected signal in the Simulink model, click. To remove a signal
from the input or output list, click. When you have selected multiple signals, you can
reorder them using and. For more information on how to specify signal locations
for a tuning goal, see “Specify Goals for Interactive Tuning” on page 10-39.
Pole Location
Use this section of the dialog box to specify the limits on pole locations.
- Minimum decay rate
Enter the target minimum decay rate for the system poles. Closed-loop system poles
that depend on the tunable parameters are constrained to satisfy Re(s) < -
MinDecay for continuous-time systems, or log(|z|) < -MinDecay*Ts for discrete-
time systems with sample time Ts. This constraint helps ensure stable dynamics in the
tuned system.Enter 0 to impose no constraint on the decay rate.- Minimum damping
Enter the target minimum damping of closed-loop poles of tuned system, as a value
between 0 and 1. Closed-loop system poles that depend on the tunable parameters are
constrained to satisfy Re(s) < -MinDamping*|s|. In discrete time, the damping
ratio is computed using s = log(z)/Ts.Enter 0 to impose no constraint on the damping ratio.- Maximum natural frequency
Enter the target maximum natural frequency of poles of tuned system, in the units of
the control system model you are tuning. When you tune the control system using this
requirement, closed-loop system poles that depend on the tunable parameters are
constrained to satisfy |s| < MaxFrequency for continuous-time systems, or |Poles Goal