Cooperation Scheme of DC 100 Hz Protection and AC Protection Based on Analysis of Converter Fault Characteristics

  • Lishuai Yin
  • , Guobing Song
  • , Junjie Hou
  • , Bing Guo
  • , Jiangtao Lv
  • , Jian Xue
  • , Liyang Yin

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

Abstract

Aiming at the traditional 100 Hz protection using a long delay strategy without considering the limitation of AC and DC side protection cooperation, an improved 100 Hz protection scheme is proposed. In this paper, according to the transfer characteristics and equivalent impedance of the AC/DC side of the converter, combined with the fault composite sequence network, a calculation method of 100 Hz component fault current is proposed. On this basis, through cooperation with the AC side protection settings and timing, an improved 100 Hz protection scheme with short delay capability is proposed. Simulation verification shows that the protection scheme can effectively identify the asymmetric fault and valve fault on the AC side of the fault, and can be used as remote backup protection for the AC side system.

Original languageEnglish
Title of host publicationProceedings of 2020 International Top-Level Forum on Engineering Science and Technology Development Strategy and The 5th PURPLE MOUNTAIN FORUM, PMF2020
EditorsYusheng Xue, Yuping Zheng, Anjan Bose
PublisherSpringer Science and Business Media Deutschland GmbH
Pages732-748
Number of pages17
ISBN (Print)9789811597459
DOIs
StatePublished - 2021
EventInternational Top-Level Forum on Engineering Science and Technology Development Strategy and 5th PURPLE MOUNTAIN FORUM on Smart Grid Protection and Control, PMF2020 - Nanjing, China
Duration: 15 Aug 202016 Aug 2020

Publication series

NameLecture Notes in Electrical Engineering
Volume718
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceInternational Top-Level Forum on Engineering Science and Technology Development Strategy and 5th PURPLE MOUNTAIN FORUM on Smart Grid Protection and Control, PMF2020
Country/TerritoryChina
CityNanjing
Period15/08/2016/08/20

Keywords

  • 100 Hz protection
  • Backup protection
  • Converter
  • HVDC

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