Satisfactory Fault-tolerant Control of NNCS under Event-triggered Sparse Data Transmission

doi:10.16182/j.issn1004731x.joss.201804046

Abstract

Abstract: Adopting the discrete event-triggered communication scheme (DETCS), the satisfactory fault-tolerant control of nonlinear networked control system (NNCS) under the sparse data transmission circumstance was studied. Based on the background of event-triggered sparse data transmission, a closed-loop model with actuator failure and actuator saturation was established. Based on Lyapunov-Krasovskii function and the safety degree definition proposed in this paper, a sufficient condition was presented for NNCS with the generalized H_?/H₂ performance under the case of actuator saturation and actuator failure, which was the contractively invariant set of fault-tolerance with α-safety degree, and the corresponding co-design method was also given. A simulation example verifies the feasibility of the co-design method and the effectiveness of saving network resource. Some related qualitative principles of compromise balance are summarized for the design of practical system.

Key words: fault-tolerant control, discrete event-triggered communication scheme, sparse data transmission, nonlinear networked control system, actuator saturation, co-design and compatibility analysis

CLC Number:

TP302.8

LiYajie, Li Wei. Satisfactory Fault-tolerant Control of NNCS under Event-triggered Sparse Data Transmission[J]. Journal of System Simulation, 2018, 30(4): 1581-1593.

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