Modelling transients in high-order electrical circuits in Matlab Simulink

Abstract

The relevance of the study is due to the need to improve and expand the possibilities of calculating electrical circuits in transients. As an object for research, linear electric circuits of the second and higher order with zero initial conditions are considered. The main goal of the research is the task of performing dynamic calculations when simulating transients in linear high-order circuits by the methods of structural simulation in the Matlab Simulink software environment. The main attention is paid to the issues of constructing structural diagrams of high-order electric circuit models. The basis for the description of processes is the equation, compiled according to the laws of Kirchhoff, linking the instantaneous values of currents and voltages of the elements of the electric circuit through their parameters. Examples of numerical modelling using variants of models of structural circuits of the electric circuit are given. The advantages of the method of simulation structural modelling in the calculation of dynamic circuits with respect to existing analytical methods for calculating transients in high-order circuits are also considered in this paper.

Understanding Power Quality using IoT-based Smart Analyzers and Advanced Software Tools

“…On the one hand, it is very common that lecturers propose activities in which students have to simulate and analyze power quality issues in circuits and power systems, in most cases using MATLAB/Simulink software. For example, MATLAB/Simulink is applied in [4] to simulate transients in linear high-order electrical circuits. Other authors have designed a MATLAB application for monitoring the operation and power quality of electrical machines [5].…”