Fault tolerant control design for a class of multi‐sensor networked control systems

Abstract

International audienc

Comparisons of adaptive fault‐tolerant insensitive control methods for a class of linear systems

“…Because insensitive control problem is not considered here, (t) in (10) can be set as zero. Compared with control strategy (8) with control functions (10) and (56), the main difference is in the first part of control strategies, ie,K 0 x(t) in (8) and −dB T Px(t) in (56). Similar to the work of Ye et al, 12 we set = 2 × e −5t in the simulation.…”

“…In (8), the control function K 1 (t) = [K 1,1 (t), K 1,2 (t), … , K 1,m (t)] T ∈ R m is developed to compensate for the unparameterizable bias-actuator faults, designed by the following adaptive control function:…”

“…Consider the closed-loop system (14) and error systems (18)- (20) satisfying Assumptions 1 to 3. By using the control strategy u(t) constructed in (8) with control function (10), and adaptive laws (9), (11), and (13), the state of system x(t) can converge to a small region, that is, lim t→∞ ||x(t)|| ≤ 2 −1 1 when the time goes into infinity.…”

Set‐membership methods applied to FDI and FTC

“…In order to provide a state of the art picture of the development of set‐membership methods applied to FDI and FTC, this issue places the focus on transitioning from theoretical to practical studies. It is organized according to a double progression by goals and by techniques: the papers deal with FDI, and the papers address FTC objectives, while the main techniques used are successively related to paving methods , parameter estimation and identification , observation , control , and Networked Control Systems (NCS) .…”

“…Stankovic et al , consider a multi‐sensor networked control configuration with an uncertain linear plant subject to bounded disturbances. A shared network is used for the communication between sensors and controller, which involves varying time‐delays.…”