NDLI: Fault Diagnosis Using Covariance Assignment and Regional Pole Placement of T-S Fuzzy Observers

Content Provider	IEEE Xplore Digital Library
Author	Shi-qian Liu Jin-chun Hu
Copyright Year	2006
Description	Author affiliation: Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing (Shi-qian Liu; Jin-chun Hu)
Abstract	This work is concerned with a new approach for model-based fault detection and isolation (FDI) of flight control system (FCS). Considering nonlinearities and cross-coupling of dynamic flight control, a T-S fuzzy model has been employed to represent nonlinear FCS with actuator/sensor faults. By the principle of parallel distributed compensation (PDC), the T-S fuzzy observers described by a number of locally-linearized models can be designed to provide characteristic features for FDI like residuals in the actual region of flight operating points. And by using theories of covariance assignment and regional pole placement, the problem of the T-S fuzzy observers with desired requirements of steady residual covariance and regional poles can be transformed into a problem of linear convex optimization and parameters of each observer at different operating points are obtained by linear matrix inequality(LMI) technique. Finally an example of normal acceleration monitor with changed aerodynamics and random vertical gust input of FCS has been presented to demonstrate the obtained result and show its performances
Starting Page	602
Ending Page	606
File Size	1152895
Page Count	5
File Format	PDF
ISBN	7302139229
DOI	10.1109/CESA.2006.4281724
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-04
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	IMACS
Subject Keyword	State feedback Actuators Sensor phenomena and characterization Aerodynamics FDI Nonlinear dynamical systems Covariance matrix Aerospace control Fault diagnosis Fuzzy control Covariance Assignment Fault detection FCS Fuzzy Observer
Content Type	Text
Resource Type	Article

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