Design and Analysis of Low-Voltage AC-DC Switching Power Supply System for Low-Voltage Management at the End of Power Grid

  • Lei Ertao
  • , Jin Li
  • , Ma Kai
  • , Huang Hua
  • , Lai Zhenhong
  • , Yi Hao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

With the improvement of people's living standards, the problem of voltage qualification rate in remote rural areas has become increasingly prominent. Under heavy load, the line voltage drop is relatively large, which is likely to cause the user voltage at the end of the line to be low. To this end, from an economic point of view, this paper proposes to use the original line to construct a DC transmission path, design a converter group and a switch network, and form an AC-DC distribution modal conversion system for a low-voltage distribution network. By detecting the voltage and current changes on both sides, there is no need for remote communication lines to determine the logic timing of the switches on both sides. The simulation results verify the feasibility of the scheme.

Original languageEnglish
Title of host publicationProceedings - 2021 IEEE Sustainable Power and Energy Conference
Subtitle of host publicationEnergy Transition for Carbon Neutrality, iSPEC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2857-2861
Number of pages5
ISBN (Electronic)9781665414395
DOIs
StatePublished - 2021
Event2021 IEEE Sustainable Power and Energy Conference, iSPEC 2021 - Nanjing, China
Duration: 22 Dec 202124 Dec 2021

Publication series

NameProceedings - 2021 IEEE Sustainable Power and Energy Conference: Energy Transition for Carbon Neutrality, iSPEC 2021

Conference

Conference2021 IEEE Sustainable Power and Energy Conference, iSPEC 2021
Country/TerritoryChina
CityNanjing
Period22/12/2124/12/21

Keywords

  • Diode clamp three-level converter
  • Line transformation
  • low-voltage at the terminal
  • switching logic sequence

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