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

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

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

1.浙江省深远海风电技术研究重点实验室,杭州 311122;
2.中国电建集团华东勘测设计研究院有限公司,杭州 311122

收稿日期:2021-01-15 出版日期:2022-09-28 发布日期:2023-03-28
通讯作者: 王滨（1982—）,男,博士、正高级工程师,主要从事海上风电场工程结构动力响应耦合机理、健康监测与全寿命期安全评价方面的研究。binwangdut@outlook.com
基金资助:
国家自然科学基金（52071301; 51909238）; 浙江省自然科学基金（LHY21E090001）

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

1. Key Laboratory of Far-shore Wind Power Technology of Zhejiang Province, Hangzhou 311122, China;
2. POWERCHINA Huadong Engineering Corporation Limited, Hangzhou 311122, China

Received:2021-01-15 Online:2022-09-28 Published:2023-03-28

摘要/Abstract

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。

关键词: 海上风电, 状态监测, 实测数据, 时频分析, 希尔伯特黄变换

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.

Key words: offshore wind power, condition monitoring, measured data, time-frequency analysis, Hilbert-Huang transform

中图分类号:

TM513.5

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.

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.

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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

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

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