Soft Starters of Powerful Electric Motors and Economic Aspects of Their Application

Tytiuk, Valerii; Rozhnenko, Zhanna; Baranovska, Mila; Berdai, Abdelmajid; Chornyi, Oleksii; Saravas, Viktoriya

doi:10.1109/paep49887.2020.9240859

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…A negative impact on the power network 3 of 25 should be understood as a decrease in voltage throughout the network, which negatively affects the operation of other consumer devices connected to it. Currently, special attention is paid to emergency cases, as well as their analysis [11,12] and diagnostics [13,14], with a discussion of the economic aspects of their application [15].…”

Section: Introductionmentioning

confidence: 99%

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

Kosykh¹,

Udovichenko²,

Lopatkin³

et al. 2022

Preprint

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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.

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