Distributed Fixed-Time Secondary Control for DC Microgrid with Less Information Exchange

Junwei Chai, Xue Lyu, Minghao Wang, Zhao Xu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

DC microgrids are a feasible grid system to host multiple distributed generators (DGs). In terms of the control and coordination of hosted DGs, it is required that the integrated secondary control scheme of DC microgrids can achieve fast dynamics. To fulfill this target, a novel fixed-time secondary control scheme is put forward in this paper to achieve a concurrent DC bus voltage regulation and current sharing among DGs within a fixed time. Notably, the proposed method only needs to transmit one variable to the neighboring DGs, which can considerably reduce the communication traffic compared to the existing latest method. Moreover, this control scheme need not sample the DC bus voltage, benefiting an easier implementation and improved system reliability. The stability of the proposed scheme is theoretically proved. The results of studied cases are provided to demonstrate the effectiveness of the proposed strategy.

Original languageEnglish
Title of host publication2023 8th International Conference on Power and Renewable Energy, ICPRE 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages652-657
Number of pages6
ISBN (Electronic)9798350328813
DOIs
Publication statusPublished - 20 Dec 2023
Event8th International Conference on Power and Renewable Energy, ICPRE 2023 - Shanghai, China
Duration: 22 Sept 202325 Sept 2023

Publication series

Name2023 8th International Conference on Power and Renewable Energy, ICPRE 2023

Conference

Conference8th International Conference on Power and Renewable Energy, ICPRE 2023
Country/TerritoryChina
CityShanghai
Period22/09/2325/09/23

Keywords

  • Current sharing
  • DC microgrid
  • distributed secondary control
  • fixed-time stability

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Control and Optimization

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