Fault detection based on ROCOV in a multi-terminal HVDC grid

M.J. Perez-Molina, P. Eguia-Lopez, M. Larruskain-Eskobal, A. Etxegarai-Madina, S. Apiñaniz Apiñaniz, A. Etxegarai

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Protection of a meshed VSC-HVDC grid is a challenge due to the behaviour of DC current and voltage signals during fault conditions. Protection systems must operate in a very short time range. Since fault detection should be very fast, local measurement based algorithms are mostly used; communication based algorithms lack the needed speed as a result of the communication time delay. This way, a ROCOV algorithm is proposed in this paper. This algorithm is analysed for different fault conditions.
Original languageEnglish
Article number260
Pages (from-to)167-171
Number of pages5
JournalRenewable Energy and Power Quality Journal
Volume18
DOIs
Publication statusPublished - 2020

Keywords

  • HVDC grid
  • ROCOV
  • Fault detection
  • Protection system
  • VSC

Project and Funding Information

  • Funding Info
  • The authors gratefully acknowledge the support from the Spanish Ministry of Economy, Industry and Competitiveness (project ENE2016-79145-R AEI/FEDER, UE), the Basque Government (GISEL research group IT1191-19), as well as from the University of the Basque Country UPV/EHU (research group funding GIU18/181).

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