Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Analysis of the Control System for a Soft Starter of an Induction Motor Based on a Multi-Zone AC Voltage Converter

Version 1 : Received: 21 November 2022 / Approved: 22 November 2022 / Online: 22 November 2022 (09:52:06 CET)

A peer-reviewed article of this Preprint also exists.

Kosykh, E.; Udovichenko, A.; Lopatkin, N.; Zinoviev, G.; Grishanov, E.; Sarakhanova, R. Analysis of the Control System for a Soft Starter of an Induction Motor Based on a Multi-Zone AC Voltage Converter. Electronics 2023, 12, 56. Kosykh, E.; Udovichenko, A.; Lopatkin, N.; Zinoviev, G.; Grishanov, E.; Sarakhanova, R. Analysis of the Control System for a Soft Starter of an Induction Motor Based on a Multi-Zone AC Voltage Converter. Electronics 2023, 12, 56.

Abstract

The development trends of the modern world of power electronics dictate the requirements for the use of AC voltage converters as soft starters for induction motors. A direct connection of the motors to the mains voltage negatively affects both the motor itself and the mains system as a whole due to high starting currents values, which entail, as a rule, more frequent accidents and shorter the drive system service life. The paper presents a study of the control system of a multi-zone AC voltage regulator. The use of capacitive voltage dividers will also compensate for the consumed reactive power. The article analyzes the features of modern soft starters, describes the circuit design, presents a mathematical calculation by the method of algebraization of differential equations, a performed simulation modeling in Matlab/Simulink, and also an assembled experimental stand for further research. Particular attention is paid to the definition of the multizonality concept of the proposed converter and the analysis of the control method. The developed algorithm of the double-loop automatic control system will minimize the influence of induction motors on the mains voltage, and thus improve electromagnetic compatibility.

Keywords

AC voltage converter; multi-zone regulation; soft starter; induction motor; reactive power compensation; improved electromagnetic compatibility

Subject

Engineering, Electrical and Electronic Engineering

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