Wind resource analyses at Westermost Rough Wind Farm
Master thesis
Permanent lenke
https://hdl.handle.net/11250/3087783Utgivelsesdato
2023Metadata
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Sammendrag
A transition towards renewable energy sources is a pressing concern for society and governmentofficials, and the offshore wind industry is more relevant than ever. The industry has thepotential to meet Europe’s energy demand by seven times, if fully realized. Reliable windresource assessments and energy production methods are vital in order to determine thefeasibility of new offshore wind farms and for technology to evolve. According to the IEC61400-12-1 standard procedure for power curve validation of wind turbines, measurements ofthe wind speed is taken at hub height. The standard procedure assumes that the hub height windspeed makes a sufficient representation of the wind speed experienced across the entire rotorswept area. As the wind industry is moving offshore and the turbine rotor gets bigger, the IEC61400-12-1 assumption becomes questionable.This thesis examines the theoretical energy output of a reference wind turbine through hubheight wind speed (HHWS) and rotor equivalent wind speed (REWS) and compare it to theactual power output retrieved from SCADA. A new method for calculating the real power curvethrough SCADA data has also been applied and deals with the velocity deficit caused by rotordistortion. The thesis further examines the validity of complementing reanalysis data with localmeasurements through scaling, using WindPRO and WAsP. This method could be stronglybeneficial when the data quality in the local measurements is low.