NetSimplex: Controller Fault Tolerance Architecture in Networked Control Systems

Author

Yao, Jianguo ; Liu, Xue ; Zhu, Guchuan ; Sha, Lui

Author_Institution

Dept. of Electr. Eng., Ecole Polytech. de Montreal, Montreal, QC, Canada

Volume

9

Issue

1

fYear

2013

fDate

Feb. 2013

Firstpage

346

Lastpage

356

Abstract

The assurance of reliability becomes increasingly challenging as the complexity of networked control systems (NCS) rapidly increases. Simplex architecture was designed to tolerate control software design and implementation. This architecture consists of a high assurance controller (HAC) and a high performance controller (HPC). The HAC uses the linear state feedback control to create a large maximum stability region (MSR). The HPC aims at achieving a better control performance and may use any design. However, the plant´s states under HPC must stay within the MSR, or the control is switched to HAC.

Keywords

control engineering computing; fault tolerance; networked control systems; state feedback; NetSimplex; control software design; controller fault tolerance architecture; high assurance controller; high performance controller; linear state feedback control; maximum stability region; networked control systems; reliability; Computer architecture; Delay; Networked control systems; Stability analysis; Switches; Cyber-physical systems; NetSimplex; networked control systems; reliability;

fLanguage

English

Journal_Title

Industrial Informatics, IEEE Transactions on

Publisher

ieee

ISSN

1551-3203

Type

jour

DOI

10.1109/TII.2012.2219060

Filename

6303908