Oscillations between Grid-Forming Converters in Weakly Connected Offshore WPPs

Sulav Ghimire*, Kanakesh V. Kkuni, Gabriel Miguel Gomes Guerreiro, Emerson D. Guest, Kim H. Jensen, Guangya Yang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

This paper studies control interactions between grid-forming (GFM) converters exhibited by power and frequency oscillations in a weakly connected offshore wind power plant (WPP). Two GFM controls are considered, namely virtual synchronous machine (VSM) and virtual admittance (VAdm) based GFM. The GFM control methods are implemented in wind turbine generators (WTGs) of a verified aggregated model of a WPP and the control interaction between these GFM WTGs is studied for several cases: cases with the same GFM control methods, and cases with different GFM control methods. A sensitivity analysis is performed for the observed oscillations to understand which system parameter affects the oscillations the most. Several solution methods are proposed and the inapplicability of some of the conventional solution methods are elaborated in this paper.
Original languageEnglish
Title of host publicationProceedings of 2024 IEEE Power & Energy Society General Meeting
Number of pages5
PublisherIEEE
Publication date2024
ISBN (Electronic)979-8-3503-8183-2
DOIs
Publication statusPublished - 2024
Event2024 IEEE Power & Energy Society General Meeting - Seattle, United States
Duration: 21 Jul 202425 Jul 2024

Conference

Conference2024 IEEE Power & Energy Society General Meeting
Country/TerritoryUnited States
CitySeattle
Period21/07/202425/07/2024
SeriesIeee Power and Energy Society General Meeting
ISSN1944-9933

Keywords

  • Grid forming
  • Stability
  • Weak grids
  • Oscillations

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