Wake effect in wind farm performance: Steady-state and dynamic behavior

F. González-Longatt, P. P. Wall, V. Terzija

Research output: Contribution to journalArticlepeer-review

216 Citations (Scopus)

Abstract

The aim of this paper is to evaluate the impact of the wake effect on both the steady-state operation and dynamic performance of a wind farm and provide conclusions that can be used as thumb rules in generic assessments where the full details of the wind farms are unknown. A simplified explicit model of the wake effect is presented, which includes: the cumulative impact of multiple shadowing, the effects of wind direction and the wind speed time delay. The model is implemented in MATLAB® and then integrated into a power system simulation package to describe the wake effect and its impact on a wind farm, particularly in terms of the wake coefficient and overall active power losses. Results for two wind farm layouts are presented to illustrate the importance of wind turbine spacing and the directionality of wind speeds when assessing the wake effect during steady-state operation and dynamic behavior.

Original languageEnglish
Pages (from-to)329-338
Number of pages10
JournalRenewable Energy
Volume39
Issue number1
DOIs
Publication statusPublished - Mar 2012
Externally publishedYes

Keywords

  • Dynamic behavior
  • Power system
  • Steady-state behavior
  • Steady-state wake effect
  • Wind farm

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