Cyber-attack Against Power System in Integrated Energy Systems: Impact and Propagation Mechanism

Advanced information and communication technology (ICT) and deep coupling of cyber and physical systems make the integrated energy system (IES) face severe cyber-attack threats. Furthermore, the integration of different energy flow systems in the IES further strengthens the complexity of cyber security. In our paper, we analyze the impact of the cyber-attack on the power system and its propagation mechanism in the IES by using an analysis framework that combines bi-level optimization and sequential energy flow simulation. First, we use a bi-level optimization model to implement the false data injection attack against the power system and then analyze the attack's impact on the parameters of the IES and heating system through the IES time series simulation. The results show that the cyber attack against the power system in IES will expand to the heating system and strengthen its destructiveness. However, the abnormal thermal parameter fluctuation reduces the stealthiness of the attack.