RESEARCH ON CROSS-WIND AERODYNAMIC DAMPING CHARACTERISTICS OF OFFSHORE WIND TURBINE STRUCTURE

Jiang Junni; Dong Xiaofeng; Wang Haijun; Lian Jijian

doi:10.19912/j.0254-0096.tynxb.2021-0103

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (9) : 267-272. DOI: 10.19912/j.0254-0096.tynxb.2021-0103

RESEARCH ON CROSS-WIND AERODYNAMIC DAMPING CHARACTERISTICS OF OFFSHORE WIND TURBINE STRUCTURE

Jiang Junni^1,2, Dong Xiaofeng^1,2, Wang Haijun^1,2, Lian Jijian^1~3

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Abstract

Taking the NREL-5 MW offshore wind turbine as an example, the value of cross-wind aerodynamic damping in operational condition was calculated based on the theoretical calculation model and the results were verified by FAST software. Then, the influence of rotor speed, blade-pitch angle and operation mode on the cross-wind aerodynamic damping was studied. The research results show that the cross-wind aerodynamic damping of the NREL-5 MW offshore wind turbine varies from 0% to 0.8% in operational conditions, and it increases with the increase of the rotor speed and blade-pitch angle. In addition, different operation modes of offshore wind turbine will also have an impact on the cross-wind aerodynamic damping.

Key words

offshore wind power / damping / numerical models / cross-wind / analysis of influencing factors

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Jiang Junni, Dong Xiaofeng, Wang Haijun, Lian Jijian. RESEARCH ON CROSS-WIND AERODYNAMIC DAMPING CHARACTERISTICS OF OFFSHORE WIND TURBINE STRUCTURE[J]. Acta Energiae Solaris Sinica. 2022, 43(9): 267-272 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0103

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