Abstract

This paper proposes an adaptive voltage DC power supply design to overcome the voltage sag problem that occurs when starting an induction motor. When an induction motor is started, the inrush current drawn by the motor causes a decrease in the voltage across the grid-connected to this motor. This voltage sag can be compensated by injecting voltage into the grid. Because the voltage drop fluctuates, the injection voltage also needs to be adj usted in magnitude. Instead of using duty cycle control to obtain the appropriate voltage magnitude required, this paper proposes to use a variable resistor (VR) combination to control the output voltage of a boost converter. In this preliminary study, the voltage drop is divided into four regions, with different compensation voltage magnitudes for each region. The magnitude of the injected voltage during the voltage sag will be adjusted according to the magnitude of the voltage drop that occurs. The results of this study indicate that the voltage magnitude required to be injected into the grid can be met appropriately. The selection of the VR resistance value according to the magnitude of the voltage drop provides the appropriate inj ection voltage value as well. Further research is needed to increase the voltage area to be inj ected by the voltage from this power supply so that the voltage difference between the grid and the power supply can be reduced and produce a smaller voltage ripple.

Original languageEnglish
Title of host publication2021 1st International Conference on Electronic and Electrical Engineering and Intelligent System, ICE3IS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages97-101
Number of pages5
ISBN (Electronic)9781665405461
DOIs
Publication statusPublished - 2021
Event1st International Conference on Electronic and Electrical Engineering and Intelligent System, ICE3IS 2021 - Virtual, Online, Indonesia
Duration: 15 Oct 202116 Oct 2021

Publication series

Name2021 1st International Conference on Electronic and Electrical Engineering and Intelligent System, ICE3IS 2021

Conference

Conference1st International Conference on Electronic and Electrical Engineering and Intelligent System, ICE3IS 2021
Country/TerritoryIndonesia
CityVirtual, Online
Period15/10/2116/10/21

Keywords

  • Adaptive DC power supply
  • Boost converter
  • Variable resistor
  • Voltage sag
  • induction motor

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