Resilient Control of DC Microgrids Against FDI Attacks on Communication Links

The intrusion of cyber attacks on communication network in microgrids will deteriorate the control performance. And it is even more difficult to effectively extract unknown attacks to obtain correct transmitted information for a direct current (DC) microgrid. In this paper, a resilient controller is designed to mitigate the adverse effects of false data injection (FDI) attacks, where the DC microgrids could restore their control objectives, including current sharing and voltage regulation. Furthermore, the restriction on the number of healthy neighbors is relaxed in this proposed control scheme compared with related researches on mitigating FDI attacks on communication links. The effectiveness of this resilient controller is illustrated by numerical examples.