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Development of a torque calibration procedure under rotation for nacelle test benches

Author(s): Paula Weidinger, Gisa Foyer, Stefan Kock Person, Jonas Gnauert and Rolf Kumme
Year: 2018
Month: June
Day: 22
Series: IOP Conf. Series: Journal of Physics: Conf. Series 1037 (2018) 052030
Publisher: IOP Publishing Ltd.
Event name: The Science of Making Torque from Wind (TORQUE 2018)
Event place: Milan, Italy
Event date: 20.-22.06.2018
DOI: 10.1088/1742-6596/1037/5/052030
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Abstract: Precise torque measurement in multi-MW nacelle test benches (NTBs) is crucial for the effciency determination of wind turbines. However, because the torque transducers of NTBs are not yet traceable to national standards, their accuracy is not yet known. To rectify this, a calibration procedure was developed for torque M under rotation using a torque transfer standard. The results of measurements performed on an NTB are presented for a validation and adjustment of the method planned. Dierent inuences on the calibration measurements are discussed, such as static and rotational zero point determination, rotational speed n, and ambient conditions.

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