| 用小波包分析提取水轮机尾水管动态特性信息 |
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| 引用本文： | 肖若富,韦彩新,韩凤琴,陈秋.用小波包分析提取水轮机尾水管动态特性信息[J].华中科技大学学报(自然科学版),2001,29(12):43-44. |
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| 作者姓名： | 肖若富 韦彩新 韩凤琴 陈秋 |
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| 作者单位： | 1. 华中科技大学能源与动力工程学院
2. 湖北省白莲河水力发电厂 |
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| 基金项目： | 国家自然科学基金资助项目 ( 5 99790 0 7)，湖北省自然科学基金资助项目 ( 98J0 65 ) . |
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| 摘 要： | 研究了小波包在水轮机尾水管的压力脉动信号处理中的应用，提出了基于小波包分解的特征提取方法。并应用此方法对水机尾水管压力脉动数据的实例进行分析。
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| 关 键 词： | 水轮机 尾水管 小波包分析 压力脉动 特征提取 特征向量 信号处理 |
| 文章编号： | 1000-8616(2001)12-0043-02 |
| 修稿时间： | 2001年7月4日 |
Extracting Dynamic Characteristic Information on Draft Tube of Hydraulic Turbine by Using Wavelet Packet |
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| Xiao Ruofu Wei Caixin Han Fengqin Chen Qiu Doctral Candidate, College of Energy & Power Eng.,HUST,Wuhan ,China..Extracting Dynamic Characteristic Information on Draft Tube of Hydraulic Turbine by Using Wavelet Packet[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2001,29(12):43-44. |
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| Authors: | Xiao Ruofu Wei Caixin Han Fengqin Chen Qiu Doctral Candidate College of Energy & Power Eng HUST Wuhan China |
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| Institution: | Xiao Ruofu Wei Caixin Han Fengqin Chen Qiu Doctral Candidate, College of Energy & Power Eng.,HUST,Wuhan 430074,China. |
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| Abstract: | The wavelet packet used in signal processing of the pressure fluctuation of the draft tube is studied and a new method for extracting the characteristic based on wavelet packet is suggested. And the data on the pressure fluctuation of the draft tube is analyzed by using the method. At the same time, the energy characteristic vector based on wavelet packet can be the input vector of the model identification of the pressure fluctuation of the draft tube. |
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| Keywords: | hydraulic turbine draft tube wavelet packet pressure fluctuation extract characteristic |
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