On the load impact of dynamic wind farm wake mixing strategies

Joeri A. Frederik, Jan Willem van Wingerden*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)
78 Downloads (Pure)

Abstract

In recent studies, the effectiveness of different so-called wake mixing strategies has been assessed in terms of wind farm power maximization. These studies show that by dynamically varying the pitch angles of a wind turbine, wake mixing can be enhanced to increase the overall power production of a wind farm. However, such strategies also increase the loads experienced by the turbine, which may disqualify such methods as viable wind farm control strategies. In this paper, an extensive analysis of the load effects of two specific wake mixing strategies, Dynamic Induction Control (DIC) and the helix approach, is presented. The damage equivalent load of critical components such as the turbine blades and tower is assessed, and the risk of fatigue damage on the blade pitch bearings is determined. This paper therefore contributes to determining the implementability of such wake mixing strategies in wind farms of the future.

Original languageEnglish
Pages (from-to)582-595
JournalRenewable Energy
Volume194
DOIs
Publication statusPublished - 2022

Keywords

  • Blade bearing damage
  • Damage equivalent load
  • Dynamic induction control
  • Dynamic wake mixing
  • Helix approach
  • Individual pitch control
  • Wind farm control

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