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Optimal centralized integrated energy station site approach based on energy transmission loss analysis
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2020-11-16 , DOI: 10.1002/er.5980 Dongwen Chen 1 , Zulkarnain Abbas 1 , Yong Li 2 , Xiao Hu 1 , Shunqi Zeng 3 , Yuquan Liu 3
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2020-11-16 , DOI: 10.1002/er.5980 Dongwen Chen 1 , Zulkarnain Abbas 1 , Yong Li 2 , Xiao Hu 1 , Shunqi Zeng 3 , Yuquan Liu 3
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Centralized integrated energy station, which combines electrical power, gas, and heat supplying source together, is emerging with the development of an integrated energy system. In the previous works, the site optimization approaches of energy stations were developed for electrical power and gas sources. In these approaches, the candidate sites only include user nodes. However, with the development of the integrated energy system, the previous approach cannot be applied effectively for the system containing heating networks with high energy transmission loss. The energy transmission loss must be calculated accurately in the optimization approach rather than valued by the simple linear model. This paper aims to propose an optimal site approach of a centralized integrated energy station, in which all possible candidates of energy station sites are considered. The candidates can be any point in the whole energy supplying area. The analysis of energy transmission losses, based on nodal energy flow models, in pipelines and feeders, are incorporated. The simultaneous optimization of the station site and energy distribution networks is conducted. It is found that the energy transmission loss is significant in heating networks; therefore, network optimization should be carried out considering exact energy transmission loss. The optimal station site obtained in the present work has reduced 2.3% of the life cycle cost much more than that obtained from the previous method selecting a site from the user node. A noticeable reduction in life cycle cost, 2.6%, can also be achieved when using the proposed approach for a single energy source station. Moreover, for integrated energy systems, it is found that the adoption of the centralized integrated energy stations is more competitive comparing with the adoption of the single energy source station.
中文翻译：
基于能量传输损耗分析的最优集中式综合能源站选址方法
随着综合能源系统的发展，集中式综合能源站将电力，天然气和供热源结合在一起。在以前的工作中，能源站的站点优化方法是针对电力和气源开发的。在这些方法中，候选站点仅包括用户节点。然而，随着集成能源系统的发展，先前的方法不能有效地应用于包含具有高能量传输损耗的加热网络的系统。能量传输损失必须以优化方法准确计算，而不是通过简单的线性模型进行估算。本文旨在提出一种集中式综合能源站的最佳现场方法，其中考虑了能源站的所有可能候选者。候选对象可以是整个能源供应区域中的任何一点。结合了基于节点能量流模型的管道和支线能量传输损失的分析。同时进行站址和能量分配网络的优化。发现在热力网络中能量传输损失是显着的。因此，应考虑确切的能量传输损耗来进行网络优化。与从用户节点中选择站点的先前方法相比，本工作中获得的最佳站点站点减少了2.3％的生命周期成本。生命周期成本显着降低2.6％，当将建议的方法用于单个能源站时，也可以实现此目的。此外，对于集成能源系统，发现采用集中式集成能源站比采用单个能源站更具竞争性。
更新日期：2020-12-22
中文翻译：
基于能量传输损耗分析的最优集中式综合能源站选址方法
随着综合能源系统的发展，集中式综合能源站将电力，天然气和供热源结合在一起。在以前的工作中，能源站的站点优化方法是针对电力和气源开发的。在这些方法中，候选站点仅包括用户节点。然而，随着集成能源系统的发展，先前的方法不能有效地应用于包含具有高能量传输损耗的加热网络的系统。能量传输损失必须以优化方法准确计算，而不是通过简单的线性模型进行估算。本文旨在提出一种集中式综合能源站的最佳现场方法，其中考虑了能源站的所有可能候选者。候选对象可以是整个能源供应区域中的任何一点。结合了基于节点能量流模型的管道和支线能量传输损失的分析。同时进行站址和能量分配网络的优化。发现在热力网络中能量传输损失是显着的。因此，应考虑确切的能量传输损耗来进行网络优化。与从用户节点中选择站点的先前方法相比，本工作中获得的最佳站点站点减少了2.3％的生命周期成本。生命周期成本显着降低2.6％，当将建议的方法用于单个能源站时，也可以实现此目的。此外，对于集成能源系统，发现采用集中式集成能源站比采用单个能源站更具竞争性。
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