Comparative analysis of fault detection and classification techniques for HVDC grid protection

V.A. Lacerda, D. Campos-Gaona, R. Pena-Alzola, R.M. Monaro, D.V. Coury, O. Anaya-Lara

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

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Abstract

Dealing with high short-circuit currents with a fast rise rate in Voltage Source Converters (VSCs) still poses as a challenge for High Voltage Direct Current (HVDC) multiterminal system (MTDC) reliability. Several fault detection algorithms have been proposed for multiterminal VSC-HVDC grids, such as undervoltage, overcurrent and their respective time derivatives. This work investigates their performance in terms of speed, sensitivity and correctness concerning classification. Tests were conducted by simulating pole-to-pole and pole-to-ground faults in different locations and fault resistances in a four-terminal VSC-HVDC grid. The results confirmed that voltage-based algorithms performed better than current-based algorithms in most cases. Furthermore, a voltage ratio method is proposed to increase fault classification performance during low-resistance faults.
Original languageEnglish
Title of host publication15th International Conference on Developments in Power System Protection (DPSP 2020)
Place of PublicationLondon
Number of pages6
DOIs
Publication statusPublished - 12 Mar 2020
EventThe 15th International Conference on Developments in Power System Protection - Liverpool, United Kingdom
Duration: 9 Mar 202012 Mar 2020
Conference number: 15th
https://dpsp.theiet.org/

Conference

ConferenceThe 15th International Conference on Developments in Power System Protection
Abbreviated titleDPSP 2020
Country/TerritoryUnited Kingdom
CityLiverpool
Period9/03/2012/03/20
Internet address

Keywords

  • short-circuit currents
  • power grids
  • HVDC power transmission
  • power transmission faults
  • voltage-source convertors
  • power transmission protection
  • HVDC power convertors
  • fault diagnosis

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