This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English version of the page.

Note: This page has been translated by MathWorks. Click here to see
To view all translated materials including this page, select Country from the country navigator on the bottom of this page.

Bumpless Control Transfer

This example shows how to use signal tracking to achieve bumpless control transfer in a system that switches between a PID Controller block and another controller. You can make the PID controller track the output of the other controller by connecting the signal you want to track to the TR port of the PID Controller block. For example:

The input In1 takes a reference signal that feeds both controllers. The output Out1 drives a controlled system (not shown). A switch transfers control between the Active controller block (a Zero-Pole block) and the PID Controller block. When the Active controller is in the loop, the PID Controller block tracks its output. Thus, the two controllers have the same output when you switch to PID control, ensuring smooth operation.