Open AccessFault‐tolerant control via sliding‐mode output feedback for uncertain linear systems with quantisation
Author(s) -
Hao LiYing,
Yang GuangHong
Publication year - 2013
Publication title -
iet control theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.059
H-Index - 108
eISSN - 1751-8652
pISSN - 1751-8644
DOI - 10.1049/iet-cta.2013.0380
Subject(s) - control theory (sociology) , sliding mode control , actuator , stability theory , controller (irrigation) , linear system , mode (computer interface) , computer science , fault (geology) , output feedback , mathematics , nonlinear system , control (management) , physics , quantum mechanics , agronomy , biology , mathematical analysis , artificial intelligence , operating system , seismology , geology
This study studies the robust fault‐tolerant control problem for uncertain linear systems via sliding‐mode output feedback. It is assumed that measured output and compensator state signals are quantised before transmission. By employing the matrix full‐rank factorisation technique with a flexible design parameter, a sufficient condition for the existence of a linear sliding surface and a compensator in the augmented space is given. Then the non‐linear discontinuous vector gain of the sliding‐mode controller is designed based on a static adjustment law of the quantisation parameters. It is shown that the proposed sliding‐mode fault‐tolerant strategy guarantees that the closed‐loop system is asymptotically stable in the presence of quantisation errors and actuator faults including outage. Compared with the existing results, the derived results lead to less conservativeness and much wider scope of applicability. Finally, the effectiveness of the proposed design method is illustrated via a B747‐100/200 aircraft model.