Assessment of the Validity of the Warranted Power Curve in non-standard Wind Conditions

Title

Assessment of the Validity of the Warranted Power Curve in non-standard Wind Conditions: An Empirical Study of the effects of density, turbulence intensity, wind shear, wind veer, and inflow angle on the Power Curve

 Author

Marchena, C.J.

Contributor

Bierbooms, W. (mentor)
van Bussel, G. (mentor)
Rindt, C. (mentor)
Coelingh, J.P. (mentor)

Faculty

Aerospace Engineering

 Department

Wind Energy

 Date

2017-06-21

 Abstract

This research aims to investigate the validity of the standard power curve (i.e. measured power curve M-PC) in non-standard wind conditions and the integration of those results into recommended practices for future warranty negotiations. The Power Performance Testing (PPT) is carried out on a ABC1 with rotor diameter between 105-110m and rated power between 3-3.5MW at a hub height 89-92m for two scenarios: i) PPT based on the IEC 61400-12-1:2005 standard (International Electrotechnical Commission - 2005) [1], where the terrain complexity (elevation differences, forestry, etc.) results in requirement for site calibration, and ii) PPT based on non-standard wind conditions. The onshore wind farm considered in this study is the XYZ in UK. Five locations within the wind farm were studied: WTG1, WTG2, WTG3, WTG4, and WTG5. Each location had one met-mast pair, one being the reference position met-mast (RM) and the other being a temporary mast located where the wind turbine will be installed, called site calibration mast (SM). Three months of data from 10 met-mats were obtained from the site calibration test. The result of the site calibration is a table of flow correction factors for all wind directions in the measurement sector. The data collected allowed as well, a detailed analysis of the influence of air density, turbulence intensity (TI), wind shear, wind veer, and inflow...

 Subject

Contract
Windenergy
Power Performance Test
Wind Conditions
Wind Speed
Air Density
Turbulence Intensity
Wind Shear
Wind Veer
Wind Turbines
Inflow Angle
Power Curve
Complex Terrain
IEC 61400-12-1
Supplier Warranties

 To reference this document use:

http://resolver.tudelft.nl/uuid:332b590a-a0ce-4b86-b4e2-d74cf2f6d168

 Part of collection

Student theses

 Document type

master thesis

 Rights

(c) C.J. Marchena
Files
PDF Carelva Marchena r.pdf 8.23 MB
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