Loop-Shaping Design
Tune feedback loops for specified bandwidth and stability margins
At the command line, use looptune to tune
SISO or MIMO feedback loops using a loop-shaping approach. looptune tunes
a feedback loop to specified bandwidth and stability margins. In Control
System Tuner, use Quick Loop Tuning for loop shaping
of feedback loops.
Functions
Topics
Loop-Shaping Basics
- Set Up Your Control System for Tuning with looptune
To uselooptune, create a parameterized representation of your controller and a numeric model of your plant. - Structure of Control System for Tuning with looptune
looptunetunes the feedback loop illustrated below to meet default requirements or requirements that you specify. - Tune Control Systems in Simulink
At the command line, usesystuneorlooptuneto automatically tune control systems modeled in Simulink®. - How Tuned Simulink Blocks Are Parameterized
Both Control System Tuner and theslTunerinterface automatically assign predefined parameterizations to certain Simulink blocks. - Mark Signals of Interest for Control System Analysis and Design
Analysis points allow you to access to internal signals, perform open-loop analysis, or specify requirements for controller tuning in systems modeled in either MATLAB® or Simulink. - Using Parallel Computing to Accelerate Tuning
Multiple optimization starts can improve control-system tuning results. If you have Parallel Computing Toolbox™, you can accelerate multi-start tuning strategies.
Loop-Shaping in Control System Tuner
- Quick Loop Tuning of Feedback Loops in Control System Tuner
Tune a control system to meet specified bandwidth and stability margins in Control System Tuner, without explicitly creating tuning goals that capture these requirements.
Case Studies
- Decoupling Controller for a Distillation Column
Uselooptuneto decouple the two main feedback loops in a distillation column. - Tuning of a Digital Motion Control System
Uselooptuneto tune a digital motion control system modeled in Simulink. - PID Tuning for Setpoint Tracking vs. Disturbance Rejection
Explore trade-offs between setpoint tracking and disturbance rejection when tuning PID controllers withsystune. - Tuning of a Two-Loop Autopilot
Tune a two-loop autopilot controlling the pitch rate and vertical acceleration of an airframe. - Multi-Loop PI Control of a Robotic Arm
This example shows how to uselooptuneto tune a multi-loop controller for a 6-DOF robotic arm manipulator.
