热值计量模式下川气东送管道运行优化研究

doi:10.11885/j.issn.1674-5086.2021.09.23.01

摘要/Abstract

摘要： 天然气长输管道是将上游天然气气源输送给下游用户使用的主要设施。相较于传统的天然气体积计量交易模式，采用热值计量交易能够更大程度体现天然气的能量价值，实现更加公平的市场竞争。在考虑天然气由体积计量向热值计量转换方式的基础上，创新性地建立了热值计量模式下的管道运行优化模型。该模型旨在最大化管道运行经济效益，并以气源流量、压缩机开机数和压缩机转速为决策变量。将所建立的优化模型应用于川气东送管道，并采用通用数学建模系统（General Algebraic Modeling System，GAMS）和DICOPT求解器对优化问题进行了求解。优化结果表明，热值计量模式下川气东送管道的天然气销售利润较传统的体积计量模式提高了10.82%，压气站能耗减少约3.4%，虽购气成本有所增加，但售气收入的增幅高于购气成本的增幅。

关键词: 天然气, 热值计量, 运行优化, 管道运行效益, 计量转换

Abstract: Long distance natural gas pipeline is the main facility connecting upstream gas source and downstream users. Compared with the traditional natural gas volume measurement transaction mode, the calorific value measurement transaction can reflect the energy value of natural gas to a greater extent and realize more fair market competition. On the basis of considering the conversion mode of natural gas from volume measurement to calorific value measurement, this paper creatively establishes the pipeline operation optimization model under calorific value measurement mode. The model aims to maximize the economic benefits of pipeline operation, and takes the air source flow, compressor startup number and compressor speed as decision variables. The established optimization model is applied to the Sichuan-east gas transmission pipeline, and the optimization problem is solved by GAMS modeling system and DICOPT solver. The optimization results show that compared with the traditional volume metering model, the sales profit of east Sichuan Gas Transmission Pipeline under the calorific value measurement model is 10.82% higher, and the energy consumption of compressor station is about 3.4% lower. Although the cost of purchasing gas increases, the increase of gas selling income is higher than that of gas purchasing cost.

Key words: natural gas, calorific value measurement, operation optimization, pipeline operation benefit, metering conversion

中图分类号:

TE973

袁献忠. 热值计量模式下川气东送管道运行优化研究[J]. 西南石油大学学报(自然科学版), 2023, 45(5): 140-151.

YUAN Xianzhong. Operation Optimization of Sichuan East Gas Transmission Pipeline Under Calorific Value Measurement Mode[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2023, 45(5): 140-151.

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