The impact of MVDC upon conventional distance protection schemes in hybrid ac-dc distribution networks

L. Hunter, C. Booth, A. Dysko, S. Finney, A. Junyent-Ferre

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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Abstract

This paper looks at the protection implications of introducing fully controllable, embedded, medium voltage dc (MVDC) power electronic links into power distribution networks. Studies have indicated, protection notwithstanding, that embedded MVDC can be used to provide economically attractive, enhanced capacity and control of power flows. Through a series of simulation studies, the impact on distance protection schemes (in terms of reach and response time) resulting from the introduction of a controlled MVDC link have been examined for symmetrical faults. The paper also considers under what conditions a dc side fault can be observed from the ac grid. A series of recommendations for system integrators are made.
Original languageEnglish
Title of host publicationIET Conference Publications
Place of PublicationStevenage, UK
Number of pages6
Volume2019
EditionCP751
ISBN (Electronic)9781839530074
DOIs
Publication statusPublished - 5 Feb 2019
Event15th IET International Conference on AC and DC Power Transmission, ACDC 2019 - Coventry, United Kingdom
Duration: 5 Feb 20197 Feb 2019

Conference

Conference15th IET International Conference on AC and DC Power Transmission, ACDC 2019
CountryUnited Kingdom
CityCoventry
Period5/02/197/02/19

Keywords

  • distance protection
  • embedded MVDC
  • MVDC
  • smart grid

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