Abstract
In this paper, we propose an adaptive fault diagnosis observer (AFDO) for a class of nonlinear systems with uncertainties. The AFDO, which estimates the faults in real time, is designed based on Lyapunov analysis. We design the adaptive fault estimation laws for AFDO by using the characteristics of output errors. Moreover, in order to handle the chattering problem, we modify the output error term to saturation term. And we add the e-modification term to handle the parameter drift, which also relaxes the assumption that the information about the upper bound of disturbancees is known prior. By Lyapunov analysis, we prove the uniform ultimately boundedness (UUB) of the system output error and unpredictable faults. Finally, we verify the effectiveness of the proposed method through computer simulations.
| Original language | English |
|---|---|
| Title of host publication | 2012 Proceedings of SICE Annual Conference, SICE 2012 |
| Publisher | Society of Instrument and Control Engineers (SICE) |
| Pages | 1116-1119 |
| Number of pages | 4 |
| ISBN (Print) | 9781467322591 |
| Publication status | Published - 2012 Jan 1 |
| Event | 2012 51st Annual Conference on of the Society of Instrument and Control Engineers of Japan, SICE 2012 - Akita, Japan Duration: 2012 Aug 20 → 2012 Aug 23 |
Publication series
| Name | Proceedings of the SICE Annual Conference |
|---|
Other
| Other | 2012 51st Annual Conference on of the Society of Instrument and Control Engineers of Japan, SICE 2012 |
|---|---|
| Country | Japan |
| City | Akita |
| Period | 12/8/20 → 12/8/23 |
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All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Computer Science Applications
- Electrical and Electronic Engineering
Cite this
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Adaptive fault diagnosis observer design for a class of nonlinear system with model uncertainties. / Jang, Seung Jin; Lee, Jae Young; Park, Jin Bae; Choi, Yoon Ho.
2012 Proceedings of SICE Annual Conference, SICE 2012. Society of Instrument and Control Engineers (SICE), 2012. p. 1116-1119 6318610 (Proceedings of the SICE Annual Conference).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Adaptive fault diagnosis observer design for a class of nonlinear system with model uncertainties
AU - Jang, Seung Jin
AU - Lee, Jae Young
AU - Park, Jin Bae
AU - Choi, Yoon Ho
PY - 2012/1/1
Y1 - 2012/1/1
N2 - In this paper, we propose an adaptive fault diagnosis observer (AFDO) for a class of nonlinear systems with uncertainties. The AFDO, which estimates the faults in real time, is designed based on Lyapunov analysis. We design the adaptive fault estimation laws for AFDO by using the characteristics of output errors. Moreover, in order to handle the chattering problem, we modify the output error term to saturation term. And we add the e-modification term to handle the parameter drift, which also relaxes the assumption that the information about the upper bound of disturbancees is known prior. By Lyapunov analysis, we prove the uniform ultimately boundedness (UUB) of the system output error and unpredictable faults. Finally, we verify the effectiveness of the proposed method through computer simulations.
AB - In this paper, we propose an adaptive fault diagnosis observer (AFDO) for a class of nonlinear systems with uncertainties. The AFDO, which estimates the faults in real time, is designed based on Lyapunov analysis. We design the adaptive fault estimation laws for AFDO by using the characteristics of output errors. Moreover, in order to handle the chattering problem, we modify the output error term to saturation term. And we add the e-modification term to handle the parameter drift, which also relaxes the assumption that the information about the upper bound of disturbancees is known prior. By Lyapunov analysis, we prove the uniform ultimately boundedness (UUB) of the system output error and unpredictable faults. Finally, we verify the effectiveness of the proposed method through computer simulations.
UR - http://www.scopus.com/inward/record.url?scp=84869462889&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869462889&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84869462889
SN - 9781467322591
T3 - Proceedings of the SICE Annual Conference
SP - 1116
EP - 1119
BT - 2012 Proceedings of SICE Annual Conference, SICE 2012
PB - Society of Instrument and Control Engineers (SICE)
ER -