Large-signal stability analysis of two power converters solutions for DC shipboard microgrid

Daniele Bosich, Madeleine Gibescu, Giorgio Sulligoi

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

5 Citations (Scopus)

Abstract

Bus voltage stability is an essential requirement in DC shipboard microgrids. In presence of Constant Power Loads, voltage instability is strictly dependent on RLC filters. This paper evaluates two power converter solutions (Thyristor Converters, TCs, and diode rectifiers + DC-DC Converters, DCs) for interfacing AC machines and DC bus. Firstly, TCs and DCs filters are sized maintaining same targets, i.e. voltage ripple and small-signal damping factor. Secondly, Lyapunov stability analysis investigates the large-signal behavior of TCs and DCs power systems. Identical Regions of Asymptotic Stability prove the feasibility of TCs, which can therefore constitute a cost-effective alternative to DCs solution.

Original languageEnglish
Title of host publication2017 IEEE 2nd International Conference on Direct Current Microgrids, ICDCM 2017
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages125-132
Number of pages8
ISBN (Electronic)978-1-5090-4479-5
ISBN (Print)978-1-5090-4480-1
DOIs
Publication statusPublished - 3 Aug 2017
Event2nd IEEE International Conference on Direct Current Microgrids (ICDCM 2017) - Nurnberg, Germany
Duration: 27 Jun 201729 Jun 2017
Conference number: 2

Conference

Conference2nd IEEE International Conference on Direct Current Microgrids (ICDCM 2017)
Abbreviated titleICDCM 2017
CountryGermany
CityNurnberg
Period27/06/1729/06/17

Keywords

  • constant power loads
  • DC microgrid
  • DC-DC converter
  • large-signal stability
  • Lyapunov theory
  • MVDC power system
  • RLC filter
  • thyristor converter

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