Analyzing wind turbine flow interaction through vibration data

The Science of Making Torque from Wind

Castellani, Francesco^1 ; D'Elia, Gianluca^2 ; Astolfi, Davide^1 ; Mucchi, Emiliano^2 ; Giorgio, Dalpiaz^2 ; Terzi, Ludovico^3

University of Perugia, Department of Engineering, Via G. Duranti 93, Perugia

06125, Italy^1

University of Ferrara, Department of Engineering, Via G. Saragat 1, Ferrara

44122, Italy^2

Renvico Srl, Via San Gregorio 34, Milan

20124, Italy^3

关键词: Flow Phenomena;    Non-stationary flows;    Structural levels;    Testing grounds;    Tower vibrations;    Very complex terrain;    Vibration data;    Wind conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/11/112008/pdf
DOI  :  10.1088/1742-6596/753/11/112008

来源: IOP

【 摘 要 】

Wind turbines commonly undergo non-stationary flow and, not rarely, even rather extreme phenomena. In particular, rough terrains represent a challenging testing ground, because of the combination of terrain-driven flow and wakes. It is therefore crucial to assess the impact of dynamic loads on the turbines. In this work, tower and drive-train vibrations are analyzed, from a subcluster of four turbines of a wind farm sited in a very complex terrain. The main outcome of the study is that it is possible to start from the analysis of wind conditions and interpret how wakes manifest in the vibrations of the turbines, both at structural level (tower vibrations) and at the drive-train level. This wind to gear approach therefore allows to build a connection between a flow phenomenon and a mechanical phenomenon (vibrations) and can be precious to assess loads in different working conditions.