Approximate active fault detection and control

European Workshop on Advanced Control and Diagnosis

Kach, Jan^1 ; Punochá, Ivo^1 ; Imandl, Miroslav^1

Department of Cybernetics and NTIS-New Technologies for the Information Society, Faculty of Applied Sciences, University of West Bohemia, iverzitní 22, Plzencheck

30614, Czech Republic^1

关键词: Active fault;    Air handling units;    Detection and controls;    Infinite time horizon;    Multiple-modeling;    Nonlinear discrete-time;    State information;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/570/7/072003/pdf
DOI  :  10.1088/1742-6596/570/7/072003

来源: IOP

【 摘 要 】

This paper deals with approximate active fault detection and control for nonlinear discrete-time stochastic systems over an infinite time horizon. Multiple model framework is used to represent fault-free and finitely many faulty models. An imperfect state information problem is reformulated using a hyper-state and dynamic programming is applied to solve the problem numerically. The proposed active fault detector and controller is illustrated in a numerical example of an air handling unit.