Identification of Equivalent Electromagnetic and Electromechanical Parameters in Nonstationary Modes

Abstract

Currently, increasing the accuracy of the power systems elements modeling is an urgent task. Modeling of elements in nonstationary modes is complicated by elements nonlinearity. The authors have developed a method for modeling the electromagnetic and electric fields. The issues of identification of equivalent load, power transformers, overhead power lines are considered. One of the most relevant applications is proposed on the basis of the developed method. This is the determination of the distance to short circuit location.As a result, the authors concluded that the use of the proposed method for identifying the parameters of equivalent elements in nonstationary modes makes it possible to increase the accuracy of dynamic processes simulation in the power system, and the accuracy of devices for determining the damage location of overhead power lines.