DocumentCode :
65253
Title :
An {oldsty\\le{H_{\\infty }}} Fault Estimation Scheme of Wireless Networked Control Systems for Industrial Real-Time Applications
Author :
Ying Wang ; Ding, S.X. ; Dongmei Xu ; Bo Shen
Author_Institution :
Inst. for Autom. Control & Complex Syst., Univ. of Duisburg-Essen, Duisburg, Germany
Volume :
22
Issue :
6
fYear :
2014
fDate :
Nov. 2014
Firstpage :
2073
Lastpage :
2086
Abstract :
In this paper, the H fault estimation (FE) problem is investigated for a class of wireless networked control systems (W-NCSs), where an information scheduler is embedded in. Based on time-division multiple access mechanism, the scheduler is modeled by periodic state-space equations, which can order the information medium access time without collision. The integration approach of the W-NCSs and scheduler is very suitable for the application of W-NCSs on industrial automatic control, since the communication is described as deterministic behavior by scheduler, and consequently the high real-time performance can be essentially guaranteed. Based on the integrated model, the FE algorithm is proposed in terms of solution to a set of Riccati difference equations. Compared with the general state-space model of this algorithm, it is worth mentioning that the solution is developed into solving the model with arbitrary inputs. Then, the performance of fault estimator is verified on a physical experimental platform WiNC integrated with three-tank system, which is formulated into discrete periodic system by multirate sampling. Finally, the effectiveness of the FE algorithm developed in this paper is demonstrated.
Keywords :
industrial control; networked control systems; telecontrol; time division multiple access; FE algorithm; FE problem; H∞ fault estimation scheme; Riccati difference equations; W-NCS; deterministic behavior; discrete periodic system; general state-space model; industrial automatic control; industrial real-time applications; information scheduler; multirate sampling; periodic state-space equations; physical experimental platform; three-tank system; time-division multiple access mechanism; wireless networked control systems; Delays; Networked control systems; Real-time systems; Scheduling algorithms; Wireless communication; Fault estimation (FE); industrial real-time applications; periodic systems; schedule; wireless networked control systems (W-NCSs); wireless networked control systems (W-NCSs).;
fLanguage :
English
Journal_Title :
Control Systems Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
1063-6536
Type :
jour
DOI :
10.1109/TCST.2014.2305393
Filename :
6783752
Link To Document :
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