The analysis of the dynamic behavior of wind turbines is a complex task. These structures present diverse configurations, dependent on the wind conditions. Consequently, the dynamic behavior is highly dependent on their operating conditions. This paper analyzes the dynamic behavior of a 2.0 MW wind turbine during 1 year of operation. In that sense, post-processing tools aiming to decompose the measured vibration response of structures into modal responses, originally developed to be applied with the SSI-DATA algorithm, are implemented and applied. Initially, an original data processing that permits the application of these tools to two additional output-only modal identification algorithms is introduced. Then, these tools are applied for the first time to data collected in a wind turbine during a period of 1 year. The obtained results evidenced the effectiveness of the proposed post-processing procedure and the distinct dynamic response of the wind turbine according to its operating conditions.

中文翻译：

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连续监测一年风电机组动态响应的模态分解

风力涡轮机的动态行为分析是一项复杂的任务。这些结构呈现出不同的配置，取决于风况。因此，动态行为高度依赖于它们的操作条件。本文分析了 2.0 MW 风力涡轮机在运行 1 年期间的动态行为。从这个意义上说，旨在将测量的结构振动响应分解为模态响应的后处理工具，最初是为与 SSI-DATA 算法一起应用而开发的，现已实施和应用。最初，引入了允许将这些工具应用于两个额外的仅输出模态识别算法的原始数据处理。然后，这些工具首次应用于风力涡轮机在 1 年期间收集的数据。