Open AccessControlled invariance‐based fault detection for multisensory control systems
Author(s) -
Stoican Florin,
Olaru Sorin,
Bitsoris George
Publication year - 2013
Publication title -
iet control theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.059
H-Index - 108
eISSN - 1751-8652
pISSN - 1751-8644
DOI - 10.1049/iet-cta.2011.0678
Subject(s) - control theory (sociology) , invariant (physics) , bounded function , fault detection and isolation , computer science , set (abstract data type) , fault tolerance , mathematics , control (management) , artificial intelligence , actuator , distributed computing , mathematical analysis , mathematical physics , programming language
In this study, set theoretic methods are used to design a fault‐tolerant scheme for a multisensor control application. The basic principle is the separation of the invariant sets for the estimations of the state and tracking error under healthy and faulty functioning. The fault scenario assumes abrupt changes of the observation equations. The main contribution of this paper is the introduction of controlled invariant sets in the fault detection mechanism. The control action is chosen in order to guarantee the closed‐loop positive invariance of a candidate region when the exogenous signals (additive disturbances, noise and reference/set‐points) are bounded.