What is it about?
A small parameter method realized in frequency domain was used in the analytical analysis of electric circuits with semiconductor converters. An automated method of formation of orthogonal harmonic components of electrical values on the basis of discrete convolution algorithm was used to provide the possibility of realization of calculation in frequency domain.
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Why is it important?
It is shown that application of a small parameter method with its realization in frequency domain enables significant simplification of the process of the analysis of electric circuits with semiconductor converters in an analytical form and facilitation of calculation automation. Analytical and numerical calculation of a circuit with a diode under active-inductive load demonstrated efficiency and sufficient accuracy of the proposed method. It is shown that increase of the order of approximating polynomial and of the number of the analysed harmonics provides the improvement of the accuracy of numerical calculations.
Perspectives
The results of the work can be used in calculation of electrotechnical devices containing semiconductor appliances and electric devices with nonlinear characteristics. Moreover, the obtained results enable studying the processes of compensation of current higher harmonics in electric networks with a nonlinear load containing semiconductor converters.
Mrs Mariia Maliakova
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This page is a summary of: Analysis of electric circuits with semiconductor converters with the use of a small parameter method in frequency domain, COMPEL The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, May 2015, Emerald,
DOI: 10.1108/compel-10-2014-0260.
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