Research on supply-demand balance in China’s five southern provinces amidst fluctuations in regional wind and solar power generation and transmission faults

IF 2.6 4区 工程技术 Q3 ENERGY & FUELS Frontiers in Energy Research Pub Date : 2024-08-26 DOI:10.3389/fenrg.2024.1450765
Jincan Zeng, Lang Tang, Minwei Liu, Guori Huang, Nan Shang, Xi Liu, Songyan Ren, Peng Wang
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Abstract

To investigate the supply-demand balance of regional power systems under extreme scenarios, this study employs the high-resolution power optimization model SWITCH-China to simulate the regional heterogeneity and randomness of extreme weather events in detail. Focusing on the five southern provinces, this study explores various impacts on the power generation side and the grid side under scenarios of reduced wind and solar power output, transmission line failures, and combined scenarios, proposing strategies for constructing a new power system. The main conclusions are: the reduction in wind and solar power output significantly affects provinces with a high proportion of these installations, like Guizhou, necessitating other stable power generation forms to compensate. Transmission line failures notably impact provinces like Guangdong, which rely heavily on imported electricity, requiring increased investment in new wind and solar installations and more self-generated power to offset the reduction in imported electricity. The combination of these factors amplifies their individual impacts, leading to the highest carbon reduction and electricity costs. The simulation results of this study are valuable for China’s five southern provinces in coping with extreme scenarios. As these provinces work on building a new power system and gradually retire fossil fuel units, they should expand the number and capacity of inter-provincial high-voltage transmission lines while considering system economics. Additionally, accelerating the deployment of energy storage is crucial for maintaining power system stability.
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中国南方五省在区域风能和太阳能发电及输电故障波动中的供需平衡研究
为了研究极端情况下区域电力系统的供需平衡,本研究采用高分辨率电力优化模型 SWITCH-China,详细模拟了极端天气事件的区域异质性和随机性。本研究以南方五省为研究对象,探讨了风能和太阳能发电量减少、输电线路故障以及综合情况下对发电侧和电网侧的各种影响,提出了构建新电力系统的策略。主要结论是:风能和太阳能发电量的减少对贵州等风能和太阳能发电装置比例较高的省份影响较大,需要其他稳定的发电形式来弥补。输电线路故障对广东等严重依赖进口电力的省份影响显著,需要增加对新的风能和太阳能发电设施的投资,并增加自发电量,以抵消进口电力的减少。这些因素的综合作用放大了各自的影响,导致最高的碳减排量和电力成本。本研究的模拟结果对中国南方五省应对极端情况具有重要价值。这些省份在建设新的电力系统、逐步淘汰化石燃料机组的同时,应在考虑系统经济性的前提下,扩大省际高压输电线路的数量和容量。此外,加快储能的部署对于维护电力系统的稳定也至关重要。
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来源期刊
Frontiers in Energy Research
Frontiers in Energy Research Economics, Econometrics and Finance-Economics and Econometrics
CiteScore
3.90
自引率
11.80%
发文量
1727
审稿时长
12 weeks
期刊介绍: Frontiers in Energy Research makes use of the unique Frontiers platform for open-access publishing and research networking for scientists, which provides an equal opportunity to seek, share and create knowledge. The mission of Frontiers is to place publishing back in the hands of working scientists and to promote an interactive, fair, and efficient review process. Articles are peer-reviewed according to the Frontiers review guidelines, which evaluate manuscripts on objective editorial criteria
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