The Power Curve Working Group's Assessment of Wind Turbine Power Performance Prediction Methods

Cheuk Yi Joseph Lee, Michael Fields, Jordan Perr-Sauer, Lindy Williams, Peter Stuart, Andrew Clifton, Lee Cameron, Taylor Geer, Paul Housley

Research output: NRELPoster

Abstract

A wind turbine power curve is often only strictly valid for a subset of all atmospheric conditions (i.e., the inner range), while wind turbines also operate in other scenarios (i.e., the outer range). Hence, modeling the power output in real-world conditions is a fundamental challenge. For example, the power deviation matrix (PDM) in Figure 1 displays an overprediction of power production using a reference power curve when wind speed (WS) and turbulence intensity (TI) are both low. Many experts use the PDM approach to observe any systematic bias in power curves and correct this in energy yield models. The mission of the Power Curve Working Group (PCWG) is to bring together wind industry stakeholders to help identify, validate, and develop ways to improve modeling of wind turbine performance in all atmospheric conditions.
Original languageAmerican English
StatePublished - 2019

Publication series

NamePresented at the Wind Resource and Project Energy Assessment Conference, 10-11 September 2019, Renton, Washington

NREL Publication Number

  • NREL/PO-5000-74924

Keywords

  • energy yield model
  • power-curve modeling
  • turbines
  • wind energy

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