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Risk-constrained non-probabilistic scheduling of coordinated power-to-gas conversion facility and natural gas storage in power and gas based energy systems
Sustainable Energy Grids & Networks ( IF 5.4 ) Pub Date : 2021-03-31 , DOI: 10.1016/j.segan.2021.100478
Aijun Ma , Jingbo Ji , Majid Khayatnezhad

Increasing environmental concerns related to fossil fuels has led to an increased desire to utilize renewable energy in the power system. Wind power resources as clean energy have an important role in the long-term energy landscape. However, the probabilistic nature of these resources will make several challenges from the integration point of view with the modern power system. Power-to-gas (P2G) technology as an emerging storage system by converting the power generated from the wind power into natural gas (NG) plays a significant role in integrating more and more wind power into the power system. Besides, the NG-fired (NGF) units have received much attention due to faster response, higher efficiency, and far lower pollution emissions. The emergence of P2G and NGF units has led to the interdependency of NG and electrical networks. This interconnection requires the simultaneous optimization and operation of both networks considering all relevant restrictions. Therefore, this paper presents a developed security-constrained unit commitment (SCUC) problem for integrated power and NG networks in the presence of P2G, NG storage, and wind power resources. The main objective of the proposed problem is to minimize the operation cost by considering all the characteristics and interconnections between the power and NG networks. To handle the uncertainty related to wind power, the information gap decision theory (IGDT)-based non-probabilistic robust approach is applied. The proposed model is implemented on the integrated 6-bus electrical and 6-node NG networks and integrated 24-bus electrical and 10-node NG networks for different cases and numerical results reveal the effectiveness of the proposed approach.



中文翻译:

电力和天然气能源系统中协调的电力到天然气转换设施和天然气存储的风险受限的非概率性调度

与化石燃料有关的环境关注日益增加,导致人们越来越渴望在电力系统中利用可再生能源。风能资源作为清洁能源在长期能源格局中具有重要作用。但是,从与现代电力系统集成的角度来看,这些资源的概率性质将带来一些挑战。电力到天然气(P2G)技术作为一种新兴的存储系统,通过将风力发电产生的电力转换为天然气(NG),在将越来越多的风力发电集成到电力系统中发挥着重要作用。此外,由于反应速度快,效率高,污染排放低得多,NG燃料(NGF)装置备受关注。P2G和NGF单元的出现导致了NG和电气网络的相互依赖。考虑到所有相关限制,这种互连需要同时优化和运行两个网络。因此,本文提出了在存在P2G,NG存储和风力资源的情况下,针对集成电力和NG网络的已开发的安全约束单位承诺(SCUC)问题。提出的问题的主要目的是通过考虑电力网络和NG网络之间的所有特性和互连来最大程度地降低运营成本。为了处理与风电有关的不确定性,应用了基于信息间隙决策理论(IGDT)的非概率鲁棒方法。

更新日期:2021-04-11
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