loopview
Graphically analyze results of control system tuning using slTuner interface
Syntax
loopview(st,controls,measurements)
loopview(st,info)
Description
loopview(st,controls,measurements) plots characteristics of the control system
described by the slTuner interface st. Use loopview to analyze the performance of a
tuned control system you obtain using looptune.
loopview plots:
- The gains of the open-loop frequency response measured at the plant inputs
(controls analysis points) and at plant outputs (measurements analysis points) - The (largest) gain of the sensitivity and complementary sensitivity functions at the
plant inputs or outputs
loopview(st,info) uses the info structure returned by looptune and also plots the
target and tuned values of tuning constraints imposed on the system. Use this syntax to
assist in troubleshooting when tuning fails to meet all requirements.
Additional plots with this syntax include:
- Normalized multi-loop disk margins at the plant inputs and outputs. For more
information about disk margins, see “Stability Analysis Using Disk Margins” (Robust
Control Toolbox). - Target vs. achieved response for any additional tuning goal you used with looptune.
Examples
loopview