Open AccessCooperative fault estimation for linear multi‐agent systems with undirected graphs
Author(s) -
Li Hao,
Yang Ying
Publication year - 2016
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2016.0099
Subject(s) - observer (physics) , estimator , undirected graph , computer science , fault (geology) , transformation (genetics) , control theory (sociology) , estimation , mathematical optimization , mathematics , graph , control (management) , theoretical computer science , artificial intelligence , statistics , engineering , physics , chemistry , systems engineering , quantum mechanics , seismology , gene , geology , biochemistry
Fault estimation problem for linear multi‐agent systems with undirected graphs is studied. A two‐layer observer based on the relative measured output information is proposed, and specially it utilises the transformation of relative output rather than the absolute one. The integral action is used to construct an adaptive fault estimator for improving the estimation performance. The fault estimation is introduced back into the observer so that fault estimation problem can be considered as stabilisation problem of the observer error dynamics. Finally, simulations are undertaken for validating the effectiveness of the theoretical results.