Abstract
A setup for active fault diagnosis (AFD) of parametric faults in dynamic systems is formulated in this paper. It is shown that it is possible to use the same setup for both open loop systems, closed loop systems based on a nominal feedback controller as well as for closed loop systems based on a reconfigured feedback controller. This will make the proposed AFD approach very useful in connection with fault tolerant control (FTC). The setup will make it possible to let the fault diagnosis part of the fault tolerant controller remain unchanged after a change in the feedback controller.
The setup for AFD is based on the YJBK (after Youla, Jabr,
Bongiorno and Kucera) parameterization of all stabilizing feedback
controllers and the dual YJBK parameterization. It is shown that the
AFD is based directly on the dual YJBK transfer function matrix. This
matrix will be named the fault signature matrix when it is used
in connection with AFD.
| Original language | English |
|---|---|
| Journal | I E E E Transactions on Automatic Control |
| Volume | 51 |
| Issue number | 9 |
| Pages (from-to) | 1572-1578 |
| ISSN | 0018-9286 |
| DOIs | |
| Publication status | Published - 2006 |
Bibliographical note
Copyright: 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEEKeywords
- active fault diagnosis
- dynamic systems
- feedback control systems
- controller parameterization