NDLI: An actuator fault isolation strategy for a class of nonlinear systems with time-delay using adaptive nonlinear unknown input observer

Content Provider	IEEE Xplore Digital Library
Author	Ying Gu Guang-Hong Yang
Copyright Year	2010
Description	Author affiliation: School of Mathematics and Physics, Dalian Jiaotong University, 116028, China (Ying Gu) \|\| School of Information Science and Engineering, Northeastern University, Shenyang, 110004, China (Guang-Hong Yang)
Abstract	This paper investigates the actuator fault isolation problem for a class of disturbance driven time delay nonlinear systems. To accomplish fault isolation,we use a bank of observers for all possible faulty models. The paper considers constant actuator faults, that is, the output of some actuators are stuck at fixed undesirable constant values. The proposed fault isolation approach relies on a bank of adaptive nonlinear unknown input observers. Based on the designed observers,a bank of residuals are defined correspondingly. The actuator fault can be isolated if only one residual approaching zero while the others do not. The faulty model with residual approaching zero identifies the faulty actuator.
Starting Page	3846
Ending Page	3849
File Size	106523
Page Count	4
File Format	PDF
ISBN	9781424451814
DOI	10.1109/CCDC.2010.5498461
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fault isolation Actuators Chemical industry Lipschitz condition Mathematics Adaptive estimation Physics Fault diagnosis Information science Fault detection Signal generators Time-delay Safety Nonlinear unknown input observer Nonlinear systems
Content Type	Text
Resource Type	Article

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