Estimation in uncertain switched systems using a bank of interval observers: local vs glocal approach
Document typeConference report
Rights accessOpen Access
This paper discusses some issues related with the design of a bank of interval observers for uncertain switched systems, in which several sources of uncertainty are considered: parametric uncertainties, unknown disturbances, measurement noise, and unknown switching signal. More specifically, this paper focuses on analyzing the interval estimation accuracy when changes of active mode induce non-positivity of the interval state estimation errors. In particular, it is shown that by combining two types of interval observers, referred to as local and global, the accuracy and reliability of the estimation can be improved. The properties of the obtained so-called glocal observer are investigated and illustrated by means of numerical simulations.
CitationRotondo, D. [et al.]. Estimation in uncertain switched systems using a bank of interval observers: local vs glocal approach. A: World Congress of the International Federation of Automatic Control. "IFAC 2020: 21th World Congress of the International Federation of Automatic Control, Berlin, Germany, July 12-17, 2020: proceedings book". Elsevier, 2020, p. 1-6. ISBN 2405-8963.