Title of article :
Parametric design of robust fault isolation observers for linear non-square systems
Author/Authors :
Wahrburg، نويسنده , , A. and Adamy، نويسنده , , J.، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2013
Pages :
10
From page :
420
To page :
429
Abstract :
In this article, two different approaches to design fault isolation observers (FIOs) for linear systems are developed. They extend the existing results to arbitrary fault detectability indices and allow to isolate simultaneously occurring actuator and sensor faults by employing only a single, specifically parameterized observer. While the presented parametric eigenstructure assignment approach gives a comprehensive interpretation of the degrees of freedom arising in non-square systems with additional sensors, the time-domain solution proves to be well suited for optimizing disturbance rejection. Furthermore, this paper presents an approach to optimize the robustness of FIOs with respect to disturbances in finite frequency ranges. This enables to reduce conservatism if knowledge of relevant disturbance frequencies is available.
Keywords :
LMI-based optimization , Observer-based fault isolation , Robust fault isolation , Parametric eigenstructure assignment , Finite frequency ranges
Journal title :
Systems and Control Letters
Serial Year :
2013
Journal title :
Systems and Control Letters
Record number :
1676545
Link To Document :
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