Journal
MATHEMATICAL AND COMPUTER MODELLING OF DYNAMICAL SYSTEMS
Volume 24, Issue 1, Pages 26-43Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/13873954.2017.1352607
Keywords
Time-varying delay identification; internal multimodel control; delayed systems; decoupled polynomial multimodel; discrete non-linear systems
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In this paper, an online algorithm is proposed for the identification of unknown time-varying input delay in the case of discrete non-linear systems described by decoupled multimodel. This method relies on the minimization of a performance index based on the error between the real system and the partial internal models outputs. In addition, a decoupled internal multimodel control is proposed for the compensation of discrete non-linear systems with time-varying delay. This control scheme incorporates partial internal model controls. Each partial controller is associated to a specified operating zone of the non-linear system. The switching between these controllers is ensured by a supervisor that contains a set of local predictors. A simulation example is carried out to illustrate the significance of the proposed time-varying delay identification algorithm and the proposed internal multimodel control scheme.
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