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A new protection principle of Modular Multilevel Converter Based High Voltage Direct Current transimission lines using series inductance voltage of one-end converter

  • Xi'an University of Science and Technology
  • State Grid Tongchuan Electric Power Supply Company
  • Xi'an Jiaotong University

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

Abstract

Modular Multilevel Converter Based High Voltage Direct Current (MMC-HVDC) technology has been developed rapidly. However, the fault of DC line is the key problem of the safe operation of MMC-HVDC transmission system. In engineering practice, series small inductance is installed at both ends of MMC-HVDC transmission line, which creates favorable conditions to solve the problem of DC line fault in MMC-HVDC transmission system. In this paper, characteristics of various short-circuit faults that may occur on the DC line of MMC-HVDC system are analyzed firstly. According to analysis result, it is obtained that the polarity of the series inductance voltage is differrent and the change rate of the fault component of the series inductance voltage is also different when fault occurs on the DC line or not. Simulation results showed that the proposed protection principle was correct in PSCAD and MATLAB.

Original languageEnglish
Title of host publicationAPAP 2019 - 8th IEEE International Conference on Advanced Power System Automation and Protection
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages104-108
Number of pages5
ISBN (Electronic)9781728117225
DOIs
StatePublished - Oct 2019
Event8th IEEE International Conference on Advanced Power System Automation and Protection, APAP 2019 - Xi'an, China
Duration: 21 Oct 201924 Oct 2019

Publication series

NameAPAP 2019 - 8th IEEE International Conference on Advanced Power System Automation and Protection

Conference

Conference8th IEEE International Conference on Advanced Power System Automation and Protection, APAP 2019
Country/TerritoryChina
CityXi'an
Period21/10/1924/10/19

Keywords

  • MMC-HVDC
  • PSCAD
  • fault analysis
  • relay protection
  • series inductance voltage

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