Abstract
The malicious data attacks may evade the detection and impose operational impacts. One major impact is the transmission line overloads being intentionally triggered by a judiciously designed false data injection attack. Such overloads can cause physical damages to components or even initiate cascading failures with severe consequences. Thus, it is necessary to establish a mechanism for mitigating the physical overloads due to potential attacks. So, in this paper, we propose a cybersecured corrective dispatch scheme which can secure the flow levels, i.e., mitigate the physical overloads, against those potential data attacks. The scheme integrates a corrective action for dispatching generators. We propose a solution method which can find the global optimum by adding a finite number of Benders like cuts. We also prove that the Lagrange multipliers can be set as binary variables without changing the optimal solution. The simulations on the IEEE 118-bus system verify the proposed scheme and pave the way for investigating relevant defensive strategies.
Published Version
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