Dynamic Identification of Equivalent Parameters of Mathematical Models of Power Electrical Equipment of Electromechanical Power Systems

Abstract

The article describes a method for dynamic identification of AC and DC hybrid power network parameters. The inaccuracy of the parameters of the electromechanical transient simulation model of the power system has caused the obvious difference between the simulation results and the actual measurement, which has restricted its online application. Over the years, the dynamic parameter identification technology based on field test and test has made great progress, but it is far from satisfactory and accurate. There is still a long research journey for the requirements of performance. The online identification method based on the actual dynamic parameters of the power system is a way to solve the problem. The article includes the main microprocessor modules for system parametric identification of load (SIP L) and an overhead power transmission line (SIP TL). The article will analyze the active electrical network and passive electrical network

A Research Method of IGBT Non-Stationary Mode for Power and Electrical Equipment Control

“…When creating a mathematical description of the transient processes of power electrical equipment, the main provisions of the theory of stationary, non-stationary and non-linear filtering of signals, methods of the theory of analysis and synthesis of linear and nonlinear electrical circuits, as well as methods of the theory of electromagnetic, electromechanical transient processes and the stability of electric power systems are used. The methodology consists in conducting numerical experiments to study the dynamic nonlinear characteristics of power electrical equipment and its control and automation tools Studies to identify the features of the dynamic properties and electrophysical characteristics of IGBT modules that are part of the power converter devices are carried out in non-stationary (including emergency) modes of electromagnetic and electromechanical frequency and power conversion [2][3][4][5][6].…”