Conditions of power-angle curves identification analysis in a simplified circuit
Algorithms of static stability margins estimation are proposed. Results of conditions and inaccuracies analysis are presented. Intrinsic and transfer conductance matrixes identified and static stability margins estimated in real time ground those inaccuracies. Algorithm of filtering with intrinsic and transfer conductance matrixes averaging is developed and checked on the basis of analysis. The algorithm improves quality of real time static stability margins estimation. Functionality of the presented algorithms is checked in the simplified circuit "Generator - Infinite buses".