Determination of the transient stability boundary

This work presents an efficient method to determine the transient stability boundary. In terms of the power system variables, the required boundary is nonlinear. The method adopted in This work is to transform the original power system variables into a higher dimensional feature space using a nonlinear transformation. It has been shown that well established linear estimation methods can be used in the feature space to determine a linear boundary. This linear boundary is equivalent to a nonlinear boundary in the original power system variable space.