Cyber Security of Intelligent Power Grids: Vulnerability and Impact Assessment for Combined Data Attacks

This work introduces combined data integrity and availability attacks to expand the attack scenarios against intelligent power grids. We propose security metrics that quantify vulnerability of power grids to combined data attacks under both power system models and communication models. The security metrics can be formulated as optimization problems. The relation between the security metrics of combined data attacks and pure data integrity attacks will be analyzed. Furthermore, co-simulation techniques will be employed to measure consequences of combined data attacks.