Fractional order unknown input filter design for fault detection of discrete linear systems

2017 ◽  
Author(s):  
Jafar Zarei ◽  
Mahmood Tabatabaei ◽  
Roozbeh Razavi-Far ◽  
Mehrdad Saif
Keyword(s):  
Fault Detection ◽  
Linear Systems ◽  
Fractional Order ◽  
Filter Design ◽  
Unknown Input ◽  
Discrete Linear Systems ◽  
Input Filter

A novel approach to unknown input filter design for discrete-time linear systems

Automatica ◽  
2014 ◽  
Vol 50 (11) ◽  
pp. 2835-2839 ◽  
Author(s):  
Behnam Allahverdi Charandabi ◽  
Horacio J. Marquez
Keyword(s):  
Linear Systems ◽  
Discrete Time ◽  
Filter Design ◽  
Unknown Input ◽  
Novel Approach ◽  
Input Filter ◽  
Time Linear

Fractional order unknown input filter design for fault detection of discrete fractional order linear systems

2018 ◽  
Vol 40 (16) ◽  
pp. 4321-4329 ◽  
Author(s):  
Jafar Zarei ◽  
Mahmood Tabatabaei
Keyword(s):  
Fault Detection ◽  
Fractional Order ◽  
Filter Design ◽  
Robust Estimator ◽  
Fractional Order Systems ◽  
Noisy Environment ◽  
Input Filter ◽  
Unknown Disturbances ◽  
Systems Simulation ◽  
Ultra Capacitor

In this study, a new method is introduced to design an estimator for discrete-time linear fractional order systems, which are affected by unknown disturbances. The main goal of this study is decoupling disturbance and uncertainties from the true states for discrete fractional order systems in noisy environment. The fractional Kalman filter framework is exploited to develop a robust estimator against unknown inputs (UIs) in noisy environment. The proposed filter is exploited to detect faults in fractional order systems. Simulation results illustrate the advantages of this robust filter for state estimation and fault detection of fractional order model of ultra-capacitor (UC). The robustness of the designed filter is shown in the sense of disturbance decoupling in the presence of noise.

Fault Detection and Isolation Filter Design by Inversion: The Case of Linear Systems

2000 ◽  
Vol 33 (11) ◽  
pp. 387-392
Author(s):  
Ferenc Szigeti ◽  
Addison Ríos ◽  
Rocco Tarantino
Keyword(s):  
Fault Detection ◽  
Linear Systems ◽  
Filter Design ◽  
Fault Detection And Isolation
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