基于改进Prony变换的时频分析方法及其在海上风电结构中的应用研究

熊根; 王滨; 陆南辛; 夏露; 祝周杰

doi:10.19912/j.0254-0096.tynxb.2021-0084

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太阳能学报 ›› 2022, Vol. 43 ›› Issue (9) : 280-286. DOI: 10.19912/j.0254-0096.tynxb.2021-0084

基于改进Prony变换的时频分析方法及其在海上风电结构中的应用研究

熊根^1,2, 王滨^1,2, 陆南辛², 夏露², 祝周杰²

作者信息 +

TIME-FREQUENCY ANALYSIS METHOD BASED ON IMPROVED PRONY TRANSFORM AND ITS APPLICATION IN OFFSHORE WIND TURBINES

Xiong Gen^1,2, Wang Bin^1,2, Lu Nanxin², Xia Lu², Zhu Zhoujie²

Author information +

文章历史 +

摘要

针对现行的时频分析方法（包括小波变换和希尔伯特黄变换等）在分析海上风力机的实测信号时的不足,发展一种基于改进Prony变化的短时时频分析方法,并使用风电基础结构与风电整机结构的海上实测数据验证该方法的正确性。通过与现有的几种主要使用的时频分析方法进行对比研究,对比论证新方法及传统时频分析方法在应用于海上风电结构时的实用性和可行性。

Abstract

In view of the shortcomings of the existing time-frequency analysis methods such as wavelet transform and Hilbert-Huang transform in the analysis of measured signals of offshore wind turbines, this paper developed a short-time time-frequency analysis method based on the improved Prony method, and the correctness of the proposed method is verified by the measured data of the foundation of an offshore wind turbine and the offshore wind turbine structure. The practicability and feasibility of the proposed time-frequency analysis method are demonstrated by comparing with several existing time-frequency analysis methods.

导出引用

熊根, 王滨, 陆南辛, 夏露, 祝周杰. 基于改进Prony变换的时频分析方法及其在海上风电结构中的应用研究[J]. 太阳能学报. 2022, 43(9): 280-286 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0084

Xiong Gen, Wang Bin, Lu Nanxin, Xia Lu, Zhu Zhoujie. TIME-FREQUENCY ANALYSIS METHOD BASED ON IMPROVED PRONY TRANSFORM AND ITS APPLICATION IN OFFSHORE WIND TURBINES[J]. Acta Energiae Solaris Sinica. 2022, 43(9): 280-286 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0084

中图分类号： TM513.5

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