Grid-Forming Capability Transfer and Active Power Flow Control in a VSC-HVDC System

Cheng Ai, Yitong Li, Chunpeng Li, Yuexi Yang, Minsung Kim, Jinjun Liu

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

Abstract

Voltage-source-converter-based high-voltage direct current (VSC-HVDC) technology proves to be an efficient solution for renewable energy sources generation and long-distance power transmission. Conventionally, at least one port of VSC in the HVDC systems should operate in grid-following (GFL) mode to maintain system stability. By contrast, this paper investigates a full grid-forming (GFM) control method for both-ports of VSCs in the HVDC system, so that the HVDC system can bidirectionally support the dc line voltage and the ac grid voltage at all ports, i.e., bidirectional grid-forming capability transfer, and meanwhile actively control the active power flow. A full order state-space model is established to assess the small-signal stability of this method. The precision of active power control performance and the bidirectional grid-forming capability transfer are confirmed through several simulation cases.

Original languageEnglish
Title of host publication2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages591-596
Number of pages6
ISBN (Electronic)9798350351330
DOIs
StatePublished - 2024
Event10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia - Chengdu, China
Duration: 17 May 202420 May 2024

Publication series

Name2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia

Conference

Conference10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
Country/TerritoryChina
CityChengdu
Period17/05/2420/05/24

Keywords

  • active power flow control
  • Grid-forming capability transfer
  • matching control
  • VSCHVDC system

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