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PDE Model for Leakage Detection in High Pressure Gas Networks

机译:高压燃气管网泄漏检测的PDE模型

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In this paper we design a model based method to locate a leakage and estimate its size in a gas network, using a linearised version of an hyperbolic PDE. To do this, the problem is reduced to two identical ODEs, allowing in this way for a representation of the pressure as well as the mass flow in terms of its system of fundamental solutions. Then using the available measurements at the grid boundary points, the correspondent coefficients can be determined. Assuming pressure continuity, we check for consistency of the coefficients in order to find faulty pipelines. Thence, the location of the leakage can be found either graphically or using a numerical method for a specific pipe. Next, its size can also be estimated.
机译:在本文中,我们使用双曲线PDE的线性化版本,设计了一种基于模型的方法来定位泄漏并估计天然气网络中的泄漏量。为此,将问题简化为两个相同的ODE,以这种方式就基本解决方案系统而言既可以表示压力又可以表示质量流量。然后,使用网格边界点处的可用测量值,可以确定相应的系数。假设压力连续性,我们检查系数的一致性,以发现有故障的管道。因此,可以通过图形方式或使用数值方法为特定管道找到泄漏的位置。接下来,还可以估计其大小。

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