Stabilization of transient processes in power systems by an eigenvalue shift approach

Abstract

A new approach to stabilize power system transient processes is presented. It uses the idea that left shifts of the dominant state matrix eigenvalues, computed along the integral trajectory, will provide better damping of the resulting transient processes. Those shifts are made by varying the power system controllable parameters in the direction of maximal joint displacement of selected (dominant) eigenvalues. The effectiveness of the proposed technique is demonstrated by its application to the problem of voltage stability control.