The $N-k$ Problem in Power Grids: New Models, Formulations, and Numerical Experiments
SIAM Journal on Optimization
Using mixed-integer programming to solve power grid blackout problems
Discrete Optimization
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Recent developments have drawn focus towards the efficient calculation of flows in AC power grids, which are difficult to solve systems of nonlinear equations. The common linearization approach leads to the well known and often used DC formulation, which has some major drawbacks. To overcome these drawbacks we revisit an alternative linearization of the AC power flow. Work on this model has already been done in the 1990s but was intractable at that time. In view of recent developments in the field of integer programming, we show that this model is computationally tractable.