| 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 |
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| 引用本文： | 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. DOI: 10.19912/j.0254-0096.tynxb.2021-0084 |
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| 作者姓名： | 熊根 王滨 陆南辛 夏露 祝周杰 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金（52071301; 51909238）; 浙江省自然科学基金（LHY21E090001） |
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| 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。
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| 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 |
| 收稿时间： | 2021-01-15 |
TIME-FREQUENCY ANALYSIS METHOD BASED ON IMPROVED PRONY TRANSFORM AND ITS APPLICATION IN OFFSHORE WIND TURBINES |
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| 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. DOI: 10.19912/j.0254-0096.tynxb.2021-0084 |
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| Authors: | Xiong Gen Wang Bin Lu Nanxin Xia Lu Zhu Zhoujie |
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| Affiliation: | 1. Key Laboratory of Far-shore Wind Power Technology of Zhejiang Province, Hangzhou 311122, China;2. POWERCHINA Huadong Engineering Corporation Limited, Hangzhou 311122, China |
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| 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. |
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| Keywords: | offshore wind power condition monitoring measured data time-frequency analysis Hilbert-Huang transform |
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