Strategies and Impact Analysis of Coordinated Cyber-Physical Attack on SG Considering False Data Injection

With the development of information and communication technology and the continuous improvement of power network automation, the traditional power grid has developed into a smart grid(SG) that integrates the communication network, computing system and the physical environment of the power system. The risk of SG attacks has also growd from simple physical attacks to cyber-physical coordination, which is called Coordinated Cyber-Physical Attacks (CCPAs). CCPAs will seriously endanger the safe and stable operation of SG. Therefore, it is of great significance to establish a Coordinated Cyber-Physical Attack model and analyze the impact of coordinated attacks on the SG. The main research contents of this thesis are as below: aiming at the load loss caused by CCPAs, a Coordinated Cyber-Physical Attack effect model for transmission lines and generators is established from the perspective of attackers and defenders on the basis of the bi-rank optimization theory. Using Karush-Kuhn-Tucker(KKT) conditions and the Fortuny-Amat-McCarl (FAM) method, the bi-rank optimization model is converted into a single-rank mixed integer linear programming model for solution. Finally, the IEEE-14 node test system is used to simulate the simulation,which results illusrate that the CCPAs can effectively cause load loss on the power system and affect the operating state of the power system.