Severe Cyber Attack for Maximizing the Total Loadings of Large-Scale Attacked Branches

In this letter, a bilevel linear programming model is proposed to reveal the severe cyber-attack scheme in economic dispatch. By using this model, not only many branches including the targeted ones can he overloaded, but also the total loadings of all overloaded branches are maximized. This is a serious attack, since large power flows will be redistributed and it could further cause overloaded branches if those attacked branches are tripped due to overloading. Simulations on the IEEE 57-bus system show that the proposed model can successfully overload many branches including the targeted ones and maximize the total loadings of all overloaded branches.