Comparative Analysis of Game-Based Defense Strategies against False Data Injection Attacks under Complete and Incomplete Information Conditions

The false data injection attack(FDIA) and corresponding defensive measures can be viewed as a two-party zerosum game. An attack and defense game model is established to propose the optimal defense strategy against FDIA. The attackdefense game space is set, the measured values in the phasor measurement unit(PMU) are taken as the attack and defense target, and the attack and defense effects are evaluated by the load shedding. The optimal defense strategy is obtained by solving the Nash equilibrium point. Simulation tests are carried out on IEEE 14 bus system, and the results of complete and incomplete situations are discussed.