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天然气管网优化对于降低管网运营成本、提升天然气供应可靠性具有重要意义。将天然气管网优化模型分为基于物理属性与基于经济属性两类,系统总结回顾了天然气长输管网优化建模及求解的研究进展。现有研究多集中于解决特定阶段下单一属性的管网优化问题,但要提高管网的经济性、可靠性及可持续性,需要综合考虑经济属性与物理属性,并系统统筹设计优化与运行优化。当前,中国在天然气管网优化建模方面的研究主要集中在基于物理属性的建模方法上,未来还需关注天然气市场均衡模型在管网优化中的应用。在模型求解方面,总结了多种启发式算法。从管道安全优化、非稳态优化及市场均衡建模3个方面,对未来天然气管网优化建模的发展趋势进行了展望。
The optimization of the natural gas pipeline network is of great significance to reduce the operating cost of the pipeline network and improve the reliability of the natural gas supply. In this paper, the optimization model of natural gas pipeline network is divided into two types based on physical attributes and economic attributes, and the research progress of long-distance natural gas pipeline network optimization modeling is systematically reviewed. Existing research mostly focuses on solving the single-attribute pipeline network optimization problem at a specific stage. However, to improve the economy, reliability, and sustainability of the pipeline network, it is necessary to consider economic and physical attributes comprehensively and systematically plan design and operation optimization. China's research on the optimization model of natural gas pipeline networks mainly focuses on modeling methods based on physical attributes. In the future, more attention should be paid to applying natural gas market equilibrium models in pipeline network optimization. Finally, this paper looks forward to the future development trend of natural gas pipeline network optimization from three aspects: pipeline safety optimization, unsteady optimization, and market equilibrium modeling.
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