TY - JOUR

T1 - Awareness and its use in Incremental Data Driven Modelling for Plug and Play Process Control

A1 - Knudsen,Torben

A1 - Bendtsen,Jan Dimon

A1 - Trangbæk,Klaus

AU - Knudsen,Torben

AU - Bendtsen,Jan Dimon

AU - Trangbæk,Klaus

PB - Lavoisier

PY - 2012

Y1 - 2012

N2 - In this paper, we focus on the problem of incremental system identification for the purpose of automatic reconfiguration of control systems. We consider the particular case where a linear time-invariant system is augmented with either an extra sensor or an extra actuator and derive prediction error methods for recursively estimating the additional parameters while retaining the existing system model.<br/>Next, we propose a novel measure of the "usefulness'' of new signals that appear in an existing control loop due to the addition of a new device, e.g., a sensor. This measure, which we refer to as awareness, indicates if there is a relation between the signal provided by the new device and the existing process, as well as what the new device is good for in terms of control performance. Finally, a simulation example illustrates the potentials of the proposed method.

AB - In this paper, we focus on the problem of incremental system identification for the purpose of automatic reconfiguration of control systems. We consider the particular case where a linear time-invariant system is augmented with either an extra sensor or an extra actuator and derive prediction error methods for recursively estimating the additional parameters while retaining the existing system model.<br/>Next, we propose a novel measure of the "usefulness'' of new signals that appear in an existing control loop due to the addition of a new device, e.g., a sensor. This measure, which we refer to as awareness, indicates if there is a relation between the signal provided by the new device and the existing process, as well as what the new device is good for in terms of control performance. Finally, a simulation example illustrates the potentials of the proposed method.

KW - System identification

KW - Incremental modelling

KW - Reconfigurable systems

KW - Adaptive control

KW - Plug and play process control

UR - http://ejc.revuesonline.com/article.jsp?articleId=17276

U2 - 10.3166/ejc.18.24-37

DO - 10.3166/ejc.18.24-37

JO - European Journal of Control

JF - European Journal of Control

SN - 0947-3580

IS - 1

VL - 18

SP - 24

EP - 37

ER -