Resilience of Complex Networks
For control engineers designing resilient systems, this work provides a method to ensure controllability under structural changes, though it is an incremental extension of existing controllability theory.
This paper determines the minimal number of additional actuators needed to maintain structural controllability of linear systems under structural alterations, and proposes an efficient synthesis mechanism. The approach is demonstrated on standard IEEE power networks.
This article determines and characterizes the minimal number of actuators needed to ensure structural controllability of a linear system under structural alterations that can severe the connection between any two states. We assume that initially the system is structurally controllable with respect to a given set of controls, and propose an efficient system-synthesis mechanism to find the minimal number of additional actuators required for resilience of the system w.r.t such structural changes. The effectiveness of this approach is demonstrated by using standard IEEE power networks.