Microgrid Cyber Resilience (MCR)

This report summarises the execution and findings of a transnational access project conducted 
under the ERIGrid 2.0 framework, focusing on the cyber-resilience of microgrids composed of 
grid-forming 
(GFM) inverters. Initially proposed for VTT, the project was  
undertaken at the SINTEF Smart Grid Laboratory. The study investigates the cyber resilience 
of microgrids to constant False Data Injection (FDI) attacks targeting the frequency sensors of 
the secondary control layer. Full hardware experiments were performed to validate prior sim
ulation-based insights regarding the impact of droop gains, R/X line ratios, and communication 
parameters on microgrid stability under attack. Results confirm that appropriate tuning of con
trol and network parameters can enhance resilience and extend the stability region even under 
coordinated attacks, independent of active mitigation techniques. The project contributes to
ward understanding how system planning and parameter selection can complement cyberse
curity efforts and reduce the risk of cascading failures in critical microgrid applications.