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Performance analysis of tacholess rotation speed estimation methods for condition monitoring of gearboxes of offshore wind farm Peeters, C.; Antoni, J.; Leclère, Q.; Helsen, J. (2021). Performance analysis of tacholess rotation speed estimation methods for condition monitoring of gearboxes of offshore wind farm, in: ASME 2021 3rd International Offshore Wind Technical Conference. pp. V001T01A019. https://dx.doi.org/10.1115/IOWTC2021-3567 In: (2021). ASME 2021 3rd International Offshore Wind Technical Conference. ASME: USA. ISBN 978-0-7918-8476-8. [no pag.] pp., meer

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Documenttype: Congresbijdrage

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Peeters, C., meer Antoni, J. Leclère, Q. Helsen, J., meer

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Abstract

This paper investigates the efficacy and reliability of three different state-of-the-art rotation speed estimation techniques on a very large set of experimental vibration data originating from thirty offshore wind turbine gearboxes. The three methods include the multi-order probabilistic approach, the phase demodulation method based on the frequency-domain energy operator, and the multi-harmonic demodulation technique. The goal is twofold: to assess statistically the performance of present-day vibration-based rotation speed estimation techniques on challenging experimental data, and to establish indirect rotation speed estimation through vibration data as a viable alternate solution to the conventional solution involving a direct measurement with a physical device such as a tachometer or an angle encoder. The results show that while all three techniques attain satisfying results, the multi-harmonic demodulation technique produces the most accurate speed estimate for the majority of all measurements whilst also being flexible in its usage.

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