Authors: V.Yu. Ostrovlyanchik, I.Yu. Popolzin

Title of the article: Research of the magnetic system of the asynchronous motor under frequency control

Year: 2016, Issue: 2, Pages: 75-83

Branch of knowledge: Electrical engineering

Index UDK: 621.3.07: 621.313.333

DOI: -

Abstract: The urgency of the discussed issue. Frequency control of asynchronous motors are now gaining ground. It is used for specialized machines, designed considering the features of frequency control as well as for general purpose machines, designed for fixed supply voltage frequency 50 Hz. At the same time is often not enough attention is paid to the description of electromagnetic processes in the machine with varying frequency. This problem isn’t very actual for special induction motors with laminated core windings, but it’s very actual for machines designed to operate at a frequency of 50 Hz. The main aim of the study: research changes in the properties of the magnetic circuit of the induction motor, designed to work at a frequency of 50 Hz voltage, at frequencies lower than the nominal. The methods used in the study: method of equivalent circuits, computer simulation. The results: obtained data on the behavior of the engine at a reduced frequency, low energy efficiency at low frequencies is shown.

Key words: frequency control asynchronous motor equivalent circuit saturation magnetization curve inductive reactance energy conversion efficiency

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