Line outage simulation by bounded network solution

Abstract

Post outage MW line flows and voltage magnitude calculations are one of the most important steps of power system static security analysis. Most of the methods use linear models for the sake of simplicity. However, linear models may suffer from high errors especially for reactive power flows. This paper presents a new method to minimize the errors resulting from the linear system model implementation. The proposed method uses a bounded nonlinear optimization, which can be considered as the corrector of the linearized feedforward calculations.