| 基于混沌特性的输油管道泄漏识别方法 |
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| 引用本文： | 张宇,李健,陈世利,张景川,靳世久.基于混沌特性的输油管道泄漏识别方法[J].纳米技术与精密工程,2009,7(4):337-341. |
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| 作者姓名： | 张宇 李健 陈世利 张景川 靳世久 |
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| 作者单位： | 天津大学精密测试技术与仪器国家重点实验室,天津,300072 |
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| 基金项目： | 国家自然科学基金重点资助项目，天津市自然科学基金资助项目 |
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| 摘 要： | 探讨了输油管道的动态压力信号存在混沌特性的可能性.以动态压力变送器的管道运行信号为研究对象,对一维的动态压力时间序列进行相空间重构,求得最大Lyapunov指数,验证了输油管道的动态压力信号确实存在混沌的特性.提出了一种利用混沌理论中的关联维数对管道泄漏进行识别的方法,根据关联维数所属数值区间对不同类型的动态压力信号进行区分.在兰成渝成品油管道的现场实验结果表明,该方法能够有效地识别管道泄漏事件,其总体识别正确率达到93.3%,具有较强的工况识别能力.
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| 关 键 词： | 管道 泄漏检测 动态压力信号 混沌 关联维数 |
Recognition Method for Oil Pipeline Leak Based on Chaotic Characteristics |
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| ZHANG Yu,LI Jian,CHEN Shi-li,ZHANG Jing-chuan,JIN Shi-jiu.Recognition Method for Oil Pipeline Leak Based on Chaotic Characteristics[J].Nanotechnology and Precision Engineering,2009,7(4):337-341. |
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| Authors: | ZHANG Yu LI Jian CHEN Shi-li ZHANG Jing-chuan JIN Shi-jiu |
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| Affiliation: | State Key Laboratory of Precision Measurement Technology and Instruments;Tianjin University;Tianjin 300072;China |
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| Abstract: | The chaos analysis theory was used to discuss whether the dynamic pressure signal of oil pipeline has chaotic characteristics.With the normal running pipeline signal of dynamic pressure transmitter as research object,the one-dimensional dynamic pressure time series were reconstructed in the high-dimensional phase space,and then the largest Lyapunov exponent was calculated to validate the existence of chaotic characteristics of the dynamic pressure signal.A recognition method for oil pipeline leak was propos... |
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| Keywords: | pipeline leak detection dynamic pressure signal chaos correlation dimension |
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