Determination of influence coefficients of the regime parameters on the electrical power system stability

The mathematical model of the electrical power system is considered in the paper. The method of the system stability analysis is based on the research of dynamics matrix of the system linearized model. The measure of stability depending on the power system parameters is introduced on the basis of the classic Lyapunov stability theory. The problem of estimating the power system stability margin is solved. The unique algorithm for computing the influence coefficients of the regime parameters on the power system stability index is presented.