On-line adaptive tuning for PID controllers
Resource
IEE Proc-Control Theory Appl 149(I)
Journal
IEE Proc-Control Theory Appl
Journal Volume
149
Journal Issue
i
Pages
-
Date Issued
2002-01
Date
2002-01
Author(s)
Huang, H.-P.
Roan, M.-L.
Jeng, J.-C.
DOI
246246/200611150121296
Abstract
Adaptive and robust designs are two major approaches to deal with possible modelling
errors in a control system. This paper proposes an adaptive control system for on-line tuning of
PID controllers for SISO systems. The proposed system comprises of two adaptive loops. The first
loop monitors and tunes the controllers on-line to ensure the system is robustly stable. This first
loop enables the system to achieve robust stability over a wide range of possible modelling errors
without trading off performance against nominal design. When modelling errors occur, the second
adaptive loop conducts recursive on-line identification and retunes the controller. Because the
nominal model is corrected on-line, directly following the on-line identification the system can
continue as a new nominal system which is designed to have tight control performance. Numerical
examples are presented to illustrate this adaptive control with two loops.
Publisher
Taipei:National Taiwan University Dept Chem Engn
Type
journal article
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