Practical application of eigenvalue techniques in the analysis of power system dynamic stability problems

A digital computer program for the analysis of small signal dynamic stability of power systems is described. The program uses the state space approach and determines the stability by computing the eigenvalues of the coefficient matrix of the linearized systems. Results of some of the investigations carried out using the program are presented. The examples considered demonstrate how the program has been used as a useful analytical tool by an electric utility for solving a variety of stability problems.