Reduced-Order-VSM-Based Frequency Controller for Wind Turbines

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

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Frequency support capability is becoming an important requirement for wind turbines, as wind power is increasingly integrated into power systems. In this paper, a frequency controller is implemented and validated. Such a controller allows wind turbines to help regulate the system frequency automatically and includes virtual inertia to help limit the rate of change of frequency. Compared with other methods, the controller achieves satisfactory frequency support capability with considerable simplicity. The controller is added to the grid-side converter controls, together with cascaded inner loops, which enables wind turbines to operate in grid-forming mode with overcurrent protection. The influence of the controller parameters on the frequency response is investigated.
Original languageEnglish
Article number528
JournalEnergies
Volume14
Issue number3
Number of pages11
ISSN1996-1073
DOIs
Publication statusPublished - 2021

Keywords

  • Wind turbine
  • Frequency control
  • Virtual synchronous machine

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