Performance evaluation of ice detectors on wind turbine rotors
Wind power
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Nergica compared the performance of three wind turbine rotor ice detectors: the BLADEcontrol from Weidmüller, the Rotor Ice Control from fos4X, and the Eologix. The performance of these rotor detectors installed on a wind turbine belonging to Nergica was evaluated in terms of technical availability, total duration of icing measured during the period, severity and temporal accuracy.
Images taken every 10 minutes by two cameras installed on the hub of the wind turbine - known as hub cameras - and the turbine's status codes were used for reference.
Highlights
Nergica compared three wind turbine rotor ice detection systems, BLADEcontrol, Rotor Ice Control and Eologix, using hub-mounted cameras as a reference. Here are the main results.
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During the winter of 2017-2018, cameras located on one of the 2 MW Senvion wind turbines at the Nergica research site observed an average of 1,023 hours of instrumental icing.
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All the detection methods used showed adequate levels of technical availability, ranging from 89% to 99%.
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The detection systems were all evaluated according to the Hanssen-Kuipers Skill Score (KSS), an index that represents the system's ability to detect ice when it is actually present. KSS scores ranged from 10% to 75%.
