Fast power flow calculation for distribution networks based on graph models and hierarchical forward-backward sweep parallel algorithm

IF 2.6 4区 工程技术 Q3 ENERGY & FUELS Frontiers in Energy Research Pub Date : 2024-08-28 DOI:10.3389/fenrg.2024.1465900
Xinrui Wang, Wengang Chen, Ruimin Tian, Yuze Ji, Jianfei Zhu
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Abstract

IntroductionIn response to the issues of complexity and low efficiency in line loss calculations for actual distribution networks, this paper proposes a fast power flow calculation method for distribution networks based on Neo4j graph models and a hierarchical forward-backward sweep parallel algorithm.MethodsFirstly, Neo4j is used to describe the distribution network structure as a simple graph model composed of nodes and edges. Secondly, a hierarchical forward-backward sweep method is adopted to perform power flow calculations on the graph model network. Finally, during the computation of distribution network subgraphs, the method is combined with the Bulk Synchronous Parallel (BSP) computing model to quickly complete the line loss analysis.Results and DiscussionResults from the IEEE 33-node test system demonstrate that the proposed method can calculate network losses quickly and accurately, with a computation time of only 0.175s, which is lower than the MySQL and Neo4j graph methods that do not consider hierarchical parallel computing.
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基于图模型和分层前向后扫并行算法的配电网络快速功率流计算
引言针对实际配电网线损计算复杂、效率低等问题,本文提出了一种基于 Neo4j 图模型和分层前向后向扫频并行算法的配电网快速功率流计算方法。方法首先,使用 Neo4j 将配电网结构描述为由节点和边组成的简单图模型。其次,采用分层前后向扫频方法对图模型网络进行功率流计算。最后,在计算配电网络子图时,将该方法与批量同步并行(BSP)计算模型相结合,快速完成线损分析。结果与讨论IEEE 33 节点测试系统的结果表明,所提出的方法可以快速准确地计算网络损耗,计算时间仅为 0.175s,低于未考虑分层并行计算的 MySQL 和 Neo4j 图方法。
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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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