A new method for transient simulation of natural gas pipeline networks based on fracture-dimension-reduction algorithm

被引：0

作者：

Guo Q. ^{[1
]}

Xie W. ^{[2
]}

Nie Z. ^{[3
]}

Lu P. ^{[4
]}

Xi X. ^{[1
]}

Wang S. ^{[1
]}

机构：

[1] College of Petroleum Engineering, Xi'an Shiyou University, Shaanxi, Xi'an

[2] College of Science, Xi'an Shiyou University, Shaanxi, Xi'an

[3] PipeChina North Pipeline Co., Ltd., Hebei, Langfang

[4] China Changqing Engineering Design Co., Ltd., Shaanxi, Xi'an

[5] Chengdu Natural Gas Chemical Plant General, PetroChina Southwest Oil & Gasfield Company, Sichuan, Chengdu

来源：

Natural Gas Industry | 2023年 / 43卷 / 05期

关键词：

Calculation efficiency; Equation set dimension; Fracture-dimension-reduction algorithm; Inter-station pipeline network model; Natural gas pipeline network; Nonlinear equations; Station model; Transient simulation;

D O I：

10.3787/j.issn.1000-0976.2023.05.009

中图分类号：

学科分类号：

摘要：

The transient simulation technology of natural gas pipeline networks plays an increasingly prominent role in the scheduling management of a natural gas pipeline network system. The increasingly large and complex natural gas pipeline network requires more strictly on the calculation efficiency of transient simulation. A new method for the transient simulation of natural gas pipeline networks based on fracture-dimension-reduction algorithm was proposed. Firstly, a pipeline network model is abstracted into a station model, inter-station pipeline network model and connection node model. Secondly, the pressure at the connection node connecting the station and the inter-station pipeline network was applied as the basic variable to solve the general solution of the flow rate at the connection node, reconstruct the simulation model of the inter-station pipeline network, and reduce the equation set dimension of the inter-station pipeline network model. Thirdly, the transient simulation model of the natural gas pipeline network system was constructed based on the reconstructed simulation model of the inter-station pipeline network. Finally, the calculation accuracy and efficiency of the proposed algorithm are compared and analyzed for the two working conditions of slow change of compressor speed and rapid shutdown of the compressor.

引用

页码：78 / 87

页数：9

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