Reliability Assessment of Meshed DC Shipboard Power Systems Using Stochastic Simulation

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

In DC shipboard power systems (DC-SPS), the enhanced network complexity and high penetration of power electronic devices make the system level reliability a critical design aspect. This paper proposes a stochastic framework for the reliability assessment of DC-SPSs based on a three-stage Monte Carlo (MC) simulation, including component failure sampling, active fault propagation, and reliability index calculation. The proposed MC framework is verified for a simplified meshed DC grid through comparison with an analytical method. Later, the advantages of the MC method are demonstrated for a dynamic positioning vessel equipped with a ring-type DC power system architecture. The results quantify the impact of redundancy on the reliability of a DC-SPS, show the spread in the subsystem repair times, and reveal the system's availability during both the initialization and steady-state. Combined, the simulation results reveal the strengths and weaknesses of the designed grid, guiding the focus for future reliability enhancements.

Original languageEnglish
Title of host publicationProceedings of the 2024 IEEE Sixth International Conference on DC Microgrids (ICDCM)
PublisherIEEE
Number of pages7
ISBN (Electronic)979-8-3503-6363-0
ISBN (Print)979-8-3503-6364-7
DOIs
Publication statusPublished - 2024
Event6th IEEE International Conference on Direct Current Microgrids, ICDCM 2024 - Columbia, United States
Duration: 5 Aug 20248 Aug 2024

Conference

Conference6th IEEE International Conference on Direct Current Microgrids, ICDCM 2024
Country/TerritoryUnited States
CityColumbia
Period5/08/248/08/24

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • DC grid
  • Monte Carlo
  • Reliability
  • Shipboard power systems

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