NDLI: Fault tolerant adaptive estimation of nonlinear processes using redundant measurements

Content Provider	IEEE Xplore Digital Library
Author	Miranda, M. Edelmayer, A.
Copyright Year	2012
Description	Author affiliation: Laboratory of Unit Operations, Department of Chemical Engineering, Faculty of Engineering, University of Los Andes, 5101, Mérida, Venezuela (Miranda, M.) \|\| Systems and Control Laboratory, Computer and Automation Research Institute, Hungarian Academy of Sciences, H-1111, Budapest, Kende u. 13-17, Hungary (Edelmayer, A.)
Abstract	This paper presents a dual layer approach for robust fault tolerant estimation of nonlinear processes using a combined adaptive extended Kalman filter and fault detection and filter reconfiguration. From the one hand, the filter is made robust in face of environment uncertainty using adaptive filtering. To this end, the filter identifies the measurement covariance by means of recursive estimation, upon which the adaptation relies, to suppress the effect of sporadic variations in the quality of measurements as well as compensates for incipient sensor faults. From the other hand, fault monitoring is continuously applied to the filter's innovation in an attempt to initiate filter reconfiguration when the adaptation mechanism alone is not able to overcome the failure situation. The discussion of the results is embedded in the application framework of state estimation of a batch distillation process.
Starting Page	703
Ending Page	709
File Size	618789
Page Count	7
File Format	PDF
ISBN	9781467325301
e-ISBN	9781467325318
e-ISBN	9781467325295
DOI	10.1109/MED.2012.6265720
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-03
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Technological innovation Fault tolerance Noise Fault tolerant systems Estimation Mathematical model
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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