On the load impact of dynamic wind farm wake mixing strategies. (July 2022)

• Record Type: Journal Article
• Authors: Frederik, Joeri A.; van Wingerden, Jan-Willem
• Is Part Of: Renewable energy. Volume 194(2022)
• Page Start: 582
• Page End: 595
• Publication Date: 2022-07
• Subjects: Dynamic wake mixing -- Wind farm control -- Damage equivalent load -- Blade bearing damage -- Dynamic induction control -- Individual pitch control -- Helix approach; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.renene.2022.05.110
• Languages: English
• ISSNs: 0960-1481

Abstract

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.