| 基于慢变流理论的管网泄漏检测模型的建立 |
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| 引用本文： | 曹慧哲,杨宗森,谈和平,吴凤山.基于慢变流理论的管网泄漏检测模型的建立[J].给水排水,2011(Z1). |
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| 作者姓名： | 曹慧哲 杨宗森 谈和平 吴凤山 |
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| 作者单位： | 哈尔滨工业大学市政与环境工程学院;哈尔滨工业大学能源学院;辽河石油勘探局油田建设工程一公司; |
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| 基金项目： | 中国博士后科学基金(20090460912); 哈尔滨市科技创新人才基金(2009RFQXS001) |
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| 摘 要： | 提出一种基于慢变流理论的给水管网泄漏诊断与定位模型,即首先对管网施加随时间缓慢变化的压力激励,如果管网中存在泄漏,随着压力的不同泄漏程度也不一样,进而影响到管网中其他节点压力和管段流量等参数的变化;依据系统辨识反问题分析方法,实时监测管网监测点处的状态参数,运用贝叶斯算法对模型的预测参数——泄漏位置和泄漏量的概率值大小进行寻优,寻找模型计算值与测量值之间吻合程度最好的预测参数,得到最可能的泄漏位置与泄漏量。通过对算例管网的计算结果表明,采用该模型能够对漏失点和漏失量进行满足概率要求的准确诊断。
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| 关 键 词： | 给水管网 慢变流 泄漏检测 贝叶斯理论 |
Leak diagnosis model of network based on the theory of slow transient flow |
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| Cao Huizhe,Yang Zongsen,Tan Heping,Wu Fengshan.Leak diagnosis model of network based on the theory of slow transient flow[J].Water & Wastewater Engineering,2011(Z1). |
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| Authors: | Cao Huizhe Yang Zongsen Tan Heping Wu Fengshan |
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| Affiliation: | Cao Huizhe1,2,Yang Zongsen1,Tan Heping2,Wu Fengshan3(1.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China,2.School of Energy Science and Engineering,Harbin 150001,3.Oilfield ConstructionProject of LiaoHe Petroleum Exploration Bureau,Panjin 124120,China) |
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| Abstract: | This paper proposes a mathematical model for leak diagnosis and localization based on the slow transient theory.That is that the pipe network is constantly applied stimulation with time.If there is leakage in the pipe network,the degree of leak is different under different pressure,which will affect the node pressure and pipe discharge,and so on.According to the inverse analysis of system identification,record the monitoring value of state parameters,and then search the optimal value in forecast parameters(... |
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| Keywords: | Network Slow transient flow Leak diagnosis Bayesian theory |
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