MODELING AND EXPERIMENTAL ANALYSIS OF THREE-PHASE POWER CONVERTERS FOR THE CONTROL OF ASYNCHRONOUS MOTORS

Abstract

This article presents the results of modeling and experimental
investigation of three-phase electromagnetic current converters equipped with
sensitive elements, applied in asynchronous motors. The aim of the study is to
evaluate the stray magnetic feld and output signal characteristics to enhance
the monitoring efficiency of reactive power. Different connection schemes (series,
parallel, and differential) of the converters are examined, and their static and
dynamic characteristics are obtained. The models were built using Matlab, and
experimental measurements were carried out with the CassyLAB device. The
study analyzes the steady-state time, harmonic distortion levels, and output
signal amplitude. The results demonstrate that differential connection of sensitive
elements provides the most effective performance. This approach may be employed
to improve energy efficiency and develop monitoring systems in industrial electric
drives.