A Functional Unknown Input Observer for Linear Singular Fornasini–Marchesini First Model Systems: With Application to Fault Diagnosis

2021 ◽  
pp. 1-12
Author(s):  
Hamid Alikhani ◽  
Mahdi Aliyari Shoorehdeli ◽  
Nader Meskin
Keyword(s):  
Fault Diagnosis ◽  
Model Systems ◽  
Unknown Input ◽  
Unknown Input Observer

Investigation of unknown input observer for sensor fault diagnosis for a CSTR process

2021 ◽  
Author(s):  
V. Kamatchi Kannan ◽  
R. Srimathi ◽  
V. Gomathi ◽  
R. Valarmathi ◽  
L.T. PrithiEkammai
Keyword(s):  
Fault Diagnosis ◽  
Unknown Input ◽  
Unknown Input Observer ◽  
Sensor Fault

Unknown Input Observer-Based Fault Diagnosis in Induction Machine: Theory and Experiment

2018 ◽  
Vol 46 (11-12) ◽  
pp. 1351-1363
Author(s):  
Amal Guezmil ◽  
Hanen Berriri ◽  
Remus Pusca ◽  
Anis Sakly ◽  
Raphael Romary ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Induction Machine ◽  
Unknown Input ◽  
Unknown Input Observer ◽  
Machine Theory ◽  
Theory And Experiment

Robust Unknown Input Observer for Nonlinear Systems and Its Application to Fault Detection and Isolation

2008 ◽  
Vol 130 (4) ◽  
Author(s):  
S. Mondal ◽  
G. Chakraborty ◽  
K. Bhattacharyya
Keyword(s):  
Fault Diagnosis ◽  
Nonlinear System ◽  
Fault Detection ◽  
Nonlinear Function ◽  
Fault Detection And Isolation ◽  
Linear Matrix ◽  
Unknown Input ◽  
Matrix Inequality ◽  
Unknown Input Observer ◽  
Linear Matrix Inequality Approach

A robust unknown input observer for a nonlinear system whose nonlinear function satisfies the Lipschitz condition is designed based on linear matrix inequality approach. Both noise and uncertainties are taken into account in deriving the observer. A component fault detection and isolation scheme based on these observers is proposed. The effectiveness of the observer and the fault diagnosis scheme is shown by applying them for component fault diagnosis of an electrohydraulic actuator.

An Optimal Unknown Input Observer Based Fault Diagnosis Method

2014 ◽  
Vol 39 (8) ◽  
pp. 1225-1230 ◽  
Author(s):  
Zhi-Kun HU ◽  
Yan SUN ◽  
Bin JIANG ◽  
Jing HE ◽  
Chang-Fan ZHANG
Keyword(s):  
Fault Diagnosis ◽  
Unknown Input ◽  
Unknown Input Observer ◽  
Diagnosis Method

Sensor Fault Diagnosis Based on a Sliding Mode and Unknown Input Observer for Takagi‐Sugeno Systems with Uncertain Premise Variables

2018 ◽  
Vol 21 (1) ◽  
pp. 339-353 ◽  
Author(s):  
Samuel Gómez‐Peñate ◽  
Guillermo Valencia‐Palomo ◽  
Francisco‐Ronay López‐Estrada ◽  
Carlos‐Manuel Astorga‐Zaragoza ◽  
Roque A. Osornio‐Rios ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Sliding Mode ◽  
Unknown Input ◽  
Unknown Input Observer ◽  
Sensor Fault ◽  
Takagi Sugeno
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