综合能源天然气网混氢输运的仿真与调度综述

Review of Simulation and Scheduling of Hydrogen-blended Transportation in Natural Gas Network of Integrated Energy System

发展清洁、安全、高效且来源广泛的氢能对建设低碳清洁的能源结构体系至关重要。天然气网混氢输运是综合程度更高的综合能源系统,通过将氢气掺混进入天然气管网,实现高效、经济的氢气大规模消纳和长距离运输。提出了综合能源天然气网混氢输运的2个关键问题:考虑掺混过程瞬态特性与输运过程分布参数特性的混氢输运天然气管网仿真方法和考虑管材、气网设备和用户终端设备约束的混氢输运天然气管网调度方法。在此基础上,综述了现有文献中氢气的掺混特性、输运特性、瞬态特性、冷凝和渗透特性及混氢天然气对管材、设备的影响。最后,总结了世界范围内现有的混氢示范项目,提出了综合能源天然气网混氢输运的未来研究方向。

The development of the clean,safe,efficient and widely sourced hydrogen energy is very important for the construction of low-carbon and clean energy structure system.Hydrogen-blended transportation in natural gas network is an integrated energy system with higher comprehensive degree.By blending hydrogen into the natural gas network,efficient and economic large-scale hydrogen consumption and long-distance transportation can be realized.In this paper,two key problems of hydrogen-blended transportation in natural gas network were proposed.A simulation method of hydrogen-blended transportation in natural gas network considering transient characteristics of blending process and distribution parameter characteristics of transportation process,and a scheduling method of hydrogen-blended transportation in natural gas network considering constraints of pipe material,gas network equipment and user terminal equipment were proposed.On this basis,the blending characteristics,transportation characteristics,transient characteristics,condensation and permeability characteristics of hydrogen in existing literature and the influence of hydrogen-blended natural gas on pipes and equipment were summarized.Finally,the existing hydrogen blending demonstration projects in the world were summarized,and the future research direction of hydrogen mixing transportation in integrated energy natural gas network was proposed.