Weak Resilience of Networked Control Systems

TL;DR

This paper introduces the concept of weak resilience in networked control systems, providing a necessary and sufficient condition for stability and a compensator design method to ensure resilience, demonstrated on a power system example.

Contribution

It defines weak resilience in networked control systems, derives a key stability condition, and proposes a compensator design method to achieve weak resilience.

Findings

The necessary and sufficient condition for weak resilience was established.

A compensator design method was developed to ensure weak resilience.

The method was validated on an IEEE 14-bus power system example.

Abstract

In this paper, we propose a method to establish a networked control system that maintains its stability in the presence of certain undesirable incidents on local controllers. We call such networked control systems weakly resilient. We first derive a necessary and sufficient condition for the weak resilience of networked systems. Networked systems do not generally satisfy this condition. Therefore, we provide a method for designing a compensator which ensures the weak resilience of the compensated system. Finally, we illustrate the efficiency of the proposed method by a power system example based on the IEEE 14-bus test system.