Whole-System Assessment of the Benefits of Integrated Electricity and Heat System
Whole-System Assessment of the Benefits of Integrated Electricity and Heat System
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DOI：
10.1109/tsg.2018.2871559
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发表时间：
2019
影响因子：
9.6
通讯作者：
Xi Zhang;G. Strbac;N. Shah;Fei Teng;D. Pudjianto
中科院分区：
文献类型：
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作者：
Xi Zhang;G. Strbac;N. Shah;Fei Teng;D. Pudjianto
电和热系统之间的相互作用将在促进向低碳能源系统、可再生能源普及率高的低碳能源系统的成本效益过渡方面发挥重要作用。本文提出了一种新的综合电热系统模型，该模型首次考虑了运行和投资的时间尺度，同时涵盖了地方和国家级基础设施。该模型被应用于优化英国综合电力和热力系统的脱碳策略，同时量化了整个多能源系统相互作用的好处，并揭示了以下组合之间的权衡：1)低碳发电技术(可再生能源、核能和CCS)和2)基于热网的区域供热系统和基于终端供热技术的分布式供热。总体而言，所提出的模型表明，热电系统一体化(与解耦方法相比)可以通过增加对供热基础设施的投资来带来显著的收益，以增强系统的灵活性，从而在电力系统中实现更大的成本节约，从而以较低的全系统成本实现碳目标。
The interaction between electricity and heat systems will play an important role in facilitating the cost effective transition to a low carbon energy system with high penetration of renewable generation. This paper presents a novel integrated electricity and heat system model in which, for the first time, operation and investment timescales are considered while covering both the local district and national level infrastructures. This model is applied to optimize decarbonization strategies of the U.K. integrated electricity and heat system, while quantifying the benefits of the interactions across the whole multi-energy system and revealing the trade-offs between portfolios of: 1) low carbon generation technologies (renewable energy, nuclear, and CCS) and 2) district heating systems based on heat networks and distributed heating based on end-use heating technologies. Overall, the proposed modeling demonstrates that the integration of the heat and electricity system (when compared with the decoupled approach) can bring significant benefits by increasing the investment in the heating infrastructure in order to enhance the system flexibility that in turn can deliver larger cost savings in the electricity system, thus meeting the carbon target at a lower whole-system cost.