Import Measured Response Data for Plant Estimation
This example shows how to use PID Tuner to import measured response data for plant
estimation.If you have System Identification Toolbox software, you can use PID Tuner to estimate
the parameters of a linear plant model based on time-domain response data. PID Tuner
then tunes a PID controller for the resulting estimated model. The response data can be
either measured from your real-world system, or obtained by simulating your Simulink
model. Plant estimation is especially useful when your Simulink model cannot be
linearized or linearizes to zero.When you import response data, PID Tuner assumes that your measured data represents
a plant connected to the PID controller in a negative-feedback loop. In other words, PID
Tuner assumes the following structure for your system. PID Tuner assumes that you
injected an input signal at u and measured the system response at y, as shown.You can import response data stored in the MATLAB workspace as a numeric array, a
timeseries object, or an iddata object. To import response data:(^1) In PID Tuner, in the PID Tuner tab, in the Plant menu, select Identify New
Plant.
Import Measured Response Data for Plant Estimation