Power System Adequacy Assessment with Load Redistribution Attacks

The wider deployment of advanced information and control technologies in the smart grid makes the power grid more vulnerable to cyber attacks such as false data injection attacks. However, the work on the long-term statistical impact of these attacks on the power grid adequacy is rather limited. In this study a novel adequacy evaluation procedure incorporating the load redistribution (LR) attack is proposed. The procedure takes into consideration the physical failures and the bilevel model representing the LR attack. The simulation is conducted based on Monte Carlo simulation (MCS) using Matlab and CPLEX. The influences of the time of attacks, the attack level, the defense level and the line transmission capacity are investigated. It is concluded that the cyber defense level is critical to the power system adequacy, and cyber issues need to be considered in the planning of the power grid.