Masetti G., Chiaradonna S., Robol L., Di Giandomenico F.
Fault diagnosis Randomness elements False data injection Power grids Critical infrastructures State estimation
Given their crucial role for a society and economy, an essential component of critical infrastructures is the Bad State Estimator (BSE), responsible for detecting malfunctions affecting elements of the physical infrastructure. In the past, the BSE has been conceived to mainly cope with accidental faults, under assumptions characterizing their occurrence. However, evolution of the addressed systems category consisting in pervasiveness of ICT-based control towards increasing smartness, paired with the openness of the operational environment, contributed to expose critical infrastructures to intentional attacks, e.g. exploited through False Data Injection (FDI). In the flow of studies focusing on enhancements of the traditional BSE to account for FDI attacks, this paper proposes a new solution that introduces randomness elements in the diagnosis process, to improve detection abilities and mitigate potentially catastrophic common-mode errors. Differently from existing alternatives, the strength of this new technique is that it does not require any additional components or alternative source of information with respect to the classic BSE. Numerical experiments conducted on two IEEE transmission grid tests, taken as representative use cases, show the applicability and benefits of the new solution.
Source: PRDC 2022 - 27th IEEE Pacific Rim International Symposium on Dependable Computing, pp. 98–108, Beijing, China, 28/11/2022 - 01/12/2022
@inproceedings{oai:it.cnr:prodotti:482004, title = {Random bad state estimator to address false data injection in critical infrastructures}, author = {Masetti G. and Chiaradonna S. and Robol L. and Di Giandomenico F.}, doi = {10.1109/prdc55274.2022.00024}, booktitle = {PRDC 2022 - 27th IEEE Pacific Rim International Symposium on Dependable Computing, pp. 98–108, Beijing, China, 28/11/2022 - 01/12/2022}, year = {2022} }