A parameter variation method for calculating electromechanical transients in electrical power systems equipped with automatic emergency protection

摘要

A method for analyzing electromechanical processes under variation in disturbances acting on and parameters of an electrical power system is described. It is deyeloped on the basis of expanding the non-linear differential equations into power series with variable coefficients. The method is used for investigating characteristics of the electrical power system equipped with an automatic emergency protection for the power control of steam turbines. The main advantage of the proposed method is that a single calculation by this method enables us to quickly predict the characteristic of transients with an accuracy sufficient for engineering practice.