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Tidal Turbine Apparatus Vibration and Its Effect on Power Production Measurement

Lookup NU author(s): Professor Pengfei LiuORCiD



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


© 2022 by the authors. Licensee MDPI, Basel, Switzerland.The effect of vibration and oscillation of an instrumented testing apparatus on horizontal axis tidal turbine rotor energy generation performance was examined and analyzed. Enforcement struts and an accelerometer were installed to measure and record vibration during the test with and without struts. Three rotors with a solidity (i.e., expanded area ratio, EAR) of 0.25, 0.4, and 0.51 were tested to obtain the rotor energy generation performance data. The analysis of the results is focused on the rotor open-water performance, in terms of the drag and power coefficient, respectively. The results show the reduced overall oscillation/vibration achieved an improvement in the measured power coefficient of about 6% and the drag measurement improved by about 3%. The allowable inflow velocity was also extended from 2 to 4 m/s. These results indicate that the enhanced vibration reduction method is effective and necessary for tidal turbine apparatus and its instrumentation.

Publication metadata

Author(s): Xu Y, Zhao J, Sun S, Liu P

Publication type: Article

Publication status: Published

Journal: Journal of Marine Science and Engineering

Year: 2022

Volume: 10

Issue: 2

Print publication date: 01/02/2022

Online publication date: 27/01/2022

Acceptance date: 24/01/2022

Date deposited: 15/02/2022

ISSN (electronic): 2077-1312

Publisher: MDPI


DOI: 10.3390/jmse10020172


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