Affiliations: Faculty of Electrical Engineering and Automation,
Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China | School of Resources and Environmental Engineering,
Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China
Note: [] Corresponding author: Yuanchun Ding, School of Resources and
Environmental Engineering, Jiangxi University of Science and Technology,
Ganzhou 341000, Jiangxi, China. Tel.: +86 797 831 2506; Fax: +86 797 831 2506;
E-mail: yydingyc@hotmail.com
Abstract: The problem of fault tolerant vibration-attenuation controller
design for uncertain linear structural systems with control input time-delay
and saturation is investigated in this paper. The objective of designing
controllers is to guarantee the asymptotic stability of closed-loop systems
while attenuate disturbance from earthquake excitation. Firstly, based on
matrix transformation, the structural system is described as state-space model,
which contains actuator fault, input signal time-delay and saturation at the
same time. Based on the obtained model, an LMIs-based condition for the system
to be stabilizable is deduced. By solving these LMIs, the controller is
established for the closed-loop system to be stable with a prescribed level of
disturbance attenuation. The condition is also extended to the uncertain case.
Finally, an example is included to demonstrate the effectiveness of the proposed theorems.
