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Natural gas pipeline transient operation optimization method

A technology for natural gas pipelines and operation optimization, which is applied in instruments, data processing applications, forecasting, etc., and can solve problems such as complex constraints, large number of variables, and difficulty in solving models

Inactive Publication Date: 2020-01-21
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

However, the existing transient operation optimization model involves a large number of variables, complex constraints, and difficult model solution

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  • Natural gas pipeline transient operation optimization method
  • Natural gas pipeline transient operation optimization method
  • Natural gas pipeline transient operation optimization method

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Embodiment Construction

[0144] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0145] The present invention provides a method for optimizing the transient operation of a natural gas pipeline, comprising: establishing a transient optimization model including compressor operation energy consumption and compressor switching cost, the transient optimization model selects the outlet pressure of the compressor station that changes with time and The number of start-up compressor stations is used as an optimization variable; the constraints of the transient optimization model are established, and the constraints include transient natural gas pipeline constraints, node constraints, compressor and station constraints, and terminal conditions; through a heuristic algorithm The transient optimization model is solved to obtain an optimal feasible solution; the natural gas pipeline is operated by using the optimal feasible solution to realize tr...

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Abstract

The invention discloses a natural gas pipeline transient operation optimization method, which comprises the steps of establishing a transient optimization model comprising compressor operation energyconsumption and compressor switch cost, and selecting compressor station outlet pressure changing with time and the number of started compressor stations as optimization variables by the transient optimization model; establishing constraint conditions of the transient optimization model, wherein the constraint conditions comprise transient natural gas pipeline constraints, node constraints, compressor and station yard constraints and terminal conditions; solving the transient optimization model through a heuristic algorithm to obtain an optimal feasible solution; and the natural gas pipeline operating by utilizing the optimal feasible solution to realize transient optimization. The transient optimization model is high in solving speed, frequent opening and closing of the compressor can beavoided, and the opening and closing cost of the compressor is reduced. The problem that in order to reduce energy consumption, the pipe stock is excessively utilized, and the output is reduced is avoided, and stable operation of the natural gas pipeline system is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of natural gas dispatching, in particular to a method for optimizing the transient operation of a natural gas pipeline. Background technique [0002] For a long time, my country's natural gas supply has been dominated by pipeline natural gas, which accounts for more than 85% of the national natural gas supply market. However, during the actual operation of long-distance natural gas pipelines, they will be affected by fluctuations in gas supply from gas sources and gas consumption by users, and their operating status is constantly changing. In addition, the structure of the large-scale pipeline network and its input and output boundary conditions are very complex, and the steady-state optimization model cannot meet the actual operation of the pipeline network. Therefore, in the process of operation and management of natural gas pipeline system, it is more accurate and reliable to use transient optimization t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06
Inventor 刘恩斌彭善碧
Owner SOUTHWEST PETROLEUM UNIV
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