中国电力 ›› 2016, Vol. 49 ›› Issue (10): 74-78.DOI: 10.11930/j.issn.1004-9649.2016.10.074.05

• 电网 • 上一篇    下一篇

一种基于广度优先搜索配电网潮流计算的改进编号方法

刘爱国1,张弘2   

  1. 1. 南昌大学 信息工程学院,江西 南昌 330031;
    2. 国网平凉供电公司,甘肃 平凉 744000
  • 收稿日期:2016-04-25 出版日期:2016-10-10 发布日期:2016-11-07
  • 作者简介:刘爱国(1965—),男,江西南昌人,副教授,从事电力系统分析与经济运行研究。E-mail: 1065986590@qq.com

Improved Numbering Method Based on Breadth-First Search

LIU Aiguo1, ZHANG Hong2   

  1. 1. Department of Electrical and Automation Engineering, Nanchang University, Nanchang 330031, China;
    2. State Grid Gansu Electric Power Company, Maintenance department, Pingliang 744000, China
  • Received:2016-04-25 Online:2016-10-10 Published:2016-11-07

摘要: 为简化大规模配电网络编号步骤和提高潮流计算速度,在广度优先搜索编号的基础上,提出了改进的节点编号方法。此方法对于新增分支并不需要考虑同级网络的分支数,只需在父节点的基础上直接添加编号,应用配电网络的代数方程计算出配电网络各台区节点电压值和功率分布。经VBA预处理和Matlab编程对5级中压开式配电网络进行潮流计算测试,整个配电网潮流计算结果在满足配电网潮流计算精度要求的前提下,相比改进前广度优先搜索编号方案计算速度快,验证了该编号方案的有效性和实用性。

关键词: 配电网, 潮流计算, 节点编号, 广度优先搜索, 分支线分层法

Abstract: In order to simplify numbering procedures and improve calculation speed on large-scale distribution network flow, an improved node numbering method is proposed based on breadth first search. With the proposed method, when adding new branch, numbers are added directly in parent node without need to consider branches of the same level network. Distribution network algebraic equations is used to calculate node voltage and power. VBA preprocessing and MATLAB simulation is performed on a 5-level open distribution network. The power flow results show the validity and practicability of proposed method. The calculation speed is faster than traditional method and satisfy the same accuracy requirement in distribution networks calculation.

Key words: distribution network, power flow calculate, node indexing, breadth-first search, branch line layer method

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