Robust fault-tolerant control for networked control systems subject to random delays via static-output feedback

Mohsen Bahreini; Jafar Zarei

doi:10.1016/j.isatra.2018.10.034

Robust fault-tolerant control for networked control systems subject to random delays via static-output feedback

ISA Trans. 2019 Mar:86:153-162. doi: 10.1016/j.isatra.2018.10.034. Epub 2018 Oct 30.

Authors

Mohsen Bahreini¹, Jafar Zarei²

Affiliations

¹ School of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz, Iran. Electronic address: m.bahreini@sutech.ac.ir.
² School of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz, Iran. Electronic address: zarei@sutech.ac.ir.

PMID: 30420139
DOI: 10.1016/j.isatra.2018.10.034

Abstract

This paper focuses on the problem of fault-tolerant controller (FTC) design for uncertain networked control systems (NCSs) with random delays and actuator faults. A new fault model is proposed to represent more class of actuator faults. More precisely, the NCSs with random delays and the possible actuator faults are modeled as a Markovian jump system (MJS) with incomplete transition probabilities (TPs) and then LMI-based sufficient conditions are derived to ensure the stochastic stability of the closed-loop system. The sufficient conditions are constructed to synthesize the mode-dependent static-output feedback (SOF) control laws. Feasibility and reliability of the proposed FTC against actuator faults are indicated through simulation results.

Keywords: Fault-tolerant control; Linear matrix inequalities (LMIs); Markovian jump systems (MJSs); Network-induced random delays; Networked control systems (NCSs); Output feedback.