Torsional oscillation damping in wind turbines with virtual synchronous machine‐based frequency response

Liang Lu*, Oscar Saborío‐Romano, Nicolaos A. Cutululis

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In the quest of improving the frequency response capability of wind turbines, control solutions trying to emulate synchronous machines have been proposed. While their performance in terms of frequency support is relatively good, they may trigger torsional oscillations, cause fatigue and damage in the drivetrain, and reduce its lifetime. In this paper, the torsional oscillations caused by a virtual synchronous machine (VSM)-based frequency controller are illustrated, and methods for damping them are introduced. Two torsional oscillation damping methods are compared and combined to derive an improved method. Dynamic simulation results show better damping performance from the combined damping method.
Original languageEnglish
JournalWind Energy
Volume25
Issue number7
Pages (from-to)1157-1172
Number of pages16
ISSN1095-4244
DOIs
Publication statusPublished - 2022

Keywords

  • Fast frequency response
  • Torsional oscillation damping
  • Virtual synchronous machine control
  • Wind turbine drivetrain

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