An overview of commercial techniques for adaptive control

Abstract

Every process controller is adaptive in the sense that it changes its output in response to a change in the error between the set point and the process variable. However, an adaptive controller can adapt not only its output, but its underlying control strategy as well it can tune its own parameters or otherwise modify its own control law so as to accommodate fundamental changes in the behavior of the process. We discuss three approaches for adaptive control: model-based techniques, model-free technique and rule-based technique.