Constant Power Load Instability Mitigation in DC Shipboard Power Systems Using Negative Series Virtual Inductor Method

Zheming Jin, Lexuan Meng, Josep M. Guerrero

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

14 Citations (Scopus)
629 Downloads (Pure)

Abstract

DC distribution technology has become the new choice and the trending technology of shipboard power systems for its advancement over its AC counterpart. In DC shipboard power systems, the bus voltage stability is a critical issue. The presence of tightly controlled high-power constant power load can induce system-level voltage instability. To mitigate such a problem, a novel compensation method based on model-derived specially designed negative virtual inductance loop is proposed in this paper. The mechanism of the proposed method is presented in detail. In addition to that, the proposed compensation method is compliable with both voltage-controlled and droop-controlled converters. Simulations are carried out to validate the proposed method, and the results show enhanced stability margin and capability when feeding constant power loads.
Original languageEnglish
Title of host publicationProceedings of 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
PublisherIEEE Press
Publication dateOct 2017
ISBN (Electronic)978-1-5386-1127-2
DOIs
Publication statusPublished - Oct 2017
Event43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, China
Duration: 29 Oct 20171 Nov 2017

Conference

Conference43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Country/TerritoryChina
CityBeijing
Period29/10/201701/11/2017
SponsorChinese Association of Automation (CAA), Chinese Power Supply Society, et al., IEEE Industrial Electronics Society (IES), Systems Engineering Society of China, The Institute of Electrical and Electronics Engineers (IEEE)
SeriesProceedings of the Annual Conference of the IEEE Industrial Electronics Society
ISSN1553-572X

Keywords

  • All-electric ship
  • Shipboard power system
  • Constant power load
  • Stability
  • Virtual impedance

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