A unified feedback secondary control for bipolar-type DC microgrids with interlinking converter

  • Zhichao Wang
  • , Haiyang Jiang
  • , Yao Yao
  • , Feng Zuo
  • , Panbao Wang*
  • *Corresponding author for this work

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

Abstract

In this paper, an interlinking converter and secondary control strategy for a bipolar DC microgrid are proposed to achieve inter-pole and full-domain current balance as well as bus voltage compensation. Compared with the traditional bipolar DC microgrid with independent operation of positive and negative poles, the coordinated operation of the bipolar converter is realized. Firstly, the designed high reliable interlinking converter and the corresponding control strategy enable voltage balancing function to achieve the inter-pole current equalization. Then, a unified voltage feedback secondary control is designed to achieve full-domain current sharing and bipolar bus voltage regulation under unmatched line impedance. Finally, a bipolar DC microgrid simulation model is established for testing. The results show that the proposed interlinking converter and secondary control can realize the control objectives under various operating conditions.

Original languageEnglish
Title of host publicationSixth International Conference on Information Science, Electrical, and Automation Engineering, ISEAE 2024
EditorsTao Lei, Dehai Zhang
PublisherSPIE
ISBN (Electronic)9781510682924
DOIs
StatePublished - 2024
Event6th International Conference on Information Science, Electrical, and Automation Engineering, ISEAE 2024 - Wuhan, China
Duration: 19 Apr 202421 Apr 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13275
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference6th International Conference on Information Science, Electrical, and Automation Engineering, ISEAE 2024
Country/TerritoryChina
CityWuhan
Period19/04/2421/04/24

Keywords

  • Interlinking converter
  • bipolar DC microgrid
  • component
  • current balance
  • secondary control
  • voltage compensation

Fingerprint

Dive into the research topics of 'A unified feedback secondary control for bipolar-type DC microgrids with interlinking converter'. Together they form a unique fingerprint.

Cite this