Mitigating Concurrent False Data Injection Attacks in Cooperative DC Microgrids

Limited global information in dc microgrids with distributed cooperative control makes them vulnerable to cyber attacks, which can lead their destabilization and shut down. Here, we discuss a novel false data injection attack (FDIA) model, termed as the concurrent attack, that compromise local communicated estimated voltages simultaneously. We formalize such an could be disguised conventional FDIA on transmitted communication links (termed link attack), thereby masking presence of rendering corresponding mitigation attempts ineffective. Second, present energy-based detection strategy based intrinsic mode functions obtained using ensemble empirical decomposition method. Further, differentiation criterion voltage correction terms generated from observer is employed help distinguish between attack. An event-driven then used replace attacked signal reconstructed signal. Finally, efficacy proposed resilient scheme demonstrated both simulations experimental results.