天然气管网仿真分层计算方法-337d23ef.pdf

工程设计

DOI：10.3969/j.issn.1001-2206.2024.01.012

天然气管网仿真分层计算方法

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阎涛，刘天尧，王雪莉，薛向东，康阳，朱峰

1.国家管网集团科学技术研究总院分公司，河北廊坊065000

2.西安交通大学软件学院，陕西西安710049

摘要：随着用气需求的日益增加，天然气管网的规模逐渐复杂化，管网仿真消耗的计算资源和计算时间亦趋

庞大。对于管网仿真过程中出现的大型代数方程组，结合天然气管网的拓扑结构特征，提出一种分层计算方

法，该方法将管网自上而下分解为若干层，每层又包含若干独立的子管网，从而使得每个子管网的计算可以独

立执行。这种处理方法降低单次求解方程组的规模，同时也使得每层中各子管网的求解可以并行实现，从而有

效提高仿真计算的效率。最后基于一个复杂管网的数值案例对算法的计算精度和效率进行分析，结果表明：相

比于传统直接求解方法，分层算法可以在维持同等计算精度的前提下，提高仿真求解速度，在该案例中平均加

速比达到了2倍左右。

关键词：天然气管网；数值仿真；分层求解

Layeredcalculationmethodofnaturalgaspipelinenetwork

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YANTao,LIUTianyao,WANGXueli,XUEXiangdong,KANGYang,ZHUFeng

1.PipeChinaInstituteofScienceandTechnology,Langfang065000,China

2.SchoolofSoftwareEngineering,Xi′anJiaotongUniversity,Xi′an710049,China

Abstract：Asthedemandforgasincreases,thenaturalgaspipelinenetworkisbecomingmoreandmorecomplicated,andthe

computationalresourcesandtimeconsumedbypipelinenetworksimulationarealsoincreasing.Forthelargealgebraicequationsinthe

pipelinenetworksimulation,thispaperproposesalayeredcalculationmethod,combinedwiththetopologicalstructurecharacteristicsof

thenaturalgaspipelinenetwork.Thismethoddecomposesthepipelinenetworkintoseverallayersfromtoptobottom,andeachlayer

containsseveralindependentsub-pipelinenetworkssothatthecalculationofeachsub-pipelinenetworkcanbeperformed

independently.Themethodreducesthesizeofthesinglesolutionequationsetandmakesthesolutionofeachsub-pipenetworkineach

layerrealizedinparallel,thuseffectivelyimprovingtheefficiencyofsimulationcalculation.Finally,thispaperanalyzesthecalculation

accuracyandefficiencyofthealgorithmbasedonanumericalcaseofacomplexpipenetwork.Theresultsshowthatcomparedwiththe

traditionaldirectsolutionmethod,thelayeredalgorithmcanimprovethesimulationspeedunderthepremiseofmaint