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Composite hierarchical anti‐disturbance control for nonlinear systems with DOBC and fuzzy control
Author(s) -
Wei Xinjiang,
Chen Nan
Publication year - 2012
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/rnc.2891
Subject(s) - disturbance (geology) , control theory (sociology) , nonlinear system , controller (irrigation) , fuzzy logic , control engineering , fuzzy control system , control (management) , scheme (mathematics) , computer science , control system , engineering , mathematics , artificial intelligence , paleontology , mathematical analysis , physics , quantum mechanics , agronomy , biology , electrical engineering
SUMMARY Anti‐disturbance control and estimation problem is introduced for a class of nonlinear system subject to disturbances. The adaptive disturbance observers are constructed separately from the controller design to estimate the disturbance with partial known information. By integrating disturbance‐observer‐based control with fuzzy control, a novel type of composite hierarchical anti‐disturbance control scheme is presented for a class of nonlinear system with unknown nonlinear dynamics. Simulations for a flight control system are given to demonstrate the effectiveness of the results compared with the previous schemes.Copyright © 2012 John Wiley & Sons, Ltd.