Multilayer Resilience Paradigm Against Cyber Attacks in DC Microgrids

Recent advancements in dc microgrids are largely based on distributed control strategies to enhance their reliability. However, due numerous vulnerabilities the communication layer, they susceptible cyber attacks. Hijacked link(s) could affect microgrid system reliability and operation many ways. Therefore, accuracy detection of compromised becomes very critical dynamic relationship between cyber-physical entities microgrids. One most prominent attacks layer is referred as man-in-the-middle (MITM) attack. This type attack involves infiltrating information two nodes by a third party. article proposes multilayer resilient controller detect mitigate MITM immediately for ensuring security First, modeling cooperative response, degree coordination element(s) discussed detail. Furthermore, diverging factor law proposed locate identify malicious signals voltage current counterparts. A multilayer-based event-driven strategy then used remove these introducing multiple mitigation layers. Based authentication signal each neighboring agent True or False , data flow network takes place guarantee resilience against Finally, mechanism presence theoretically verified validated using simulations experiments.