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含特殊负荷的配电网分层故障定位方法

高锋阳 李昭君 袁成 李晓峰 齐晓东

高锋阳, 李昭君, 袁成, 李晓峰, 齐晓东. 含特殊负荷的配电网分层故障定位方法[J]. 西南交通大学学报, 2020, 55(3): 570-578. doi: 10.3969/j.issn.0258-2724.20190414
引用本文: 高锋阳, 李昭君, 袁成, 李晓峰, 齐晓东. 含特殊负荷的配电网分层故障定位方法[J]. 西南交通大学学报, 2020, 55(3): 570-578. doi: 10.3969/j.issn.0258-2724.20190414
GAO Fengyang, LI Zhaojun, YUAN Cheng, LI Xiaofeng, QI Xiaodong. Hierarchical Fault Location Method for Distribution Network with Special Load[J]. Journal of Southwest Jiaotong University, 2020, 55(3): 570-578. doi: 10.3969/j.issn.0258-2724.20190414
Citation: GAO Fengyang, LI Zhaojun, YUAN Cheng, LI Xiaofeng, QI Xiaodong. Hierarchical Fault Location Method for Distribution Network with Special Load[J]. Journal of Southwest Jiaotong University, 2020, 55(3): 570-578. doi: 10.3969/j.issn.0258-2724.20190414

含特殊负荷的配电网分层故障定位方法

doi: 10.3969/j.issn.0258-2724.20190414
基金项目: 甘肃省重点研发计划(18YF1FA058)
详细信息
    作者简介:

    高锋阳(1970—),男,教授级高工,博士,硕士生导师,研究方向为配电网健康评估,E-mail:329365048@qq.com

  • 中图分类号: TM727

Hierarchical Fault Location Method for Distribution Network with Special Load

  • 摘要: 特殊负荷接入配电网,增强了电源、负荷与电网之间的互动性,对故障定位提出了更高的要求,为此,提出了一种快速定位故障点的分层定位方法. 首先分析基于遗传算法的单层含特殊负荷配电网故障定位的不完备性;其次在单层模型的理论基础上,提出改进量子免疫算法的区域定位方法和隐枚举法的区段定位方法;最后对所提模型和基于单一智能算法的单层模型进行了对比仿真实验. 结果表明:与遗传算法、免疫算法和改进量子免疫算法构建的单层定位模型相比,所提分层定位方法大大简化了故障辨识模型的复杂度,在提高定位效率的同时保证了定位的容错性和稳定性,可将故障搜索维度降低69%,故障定位耗时在1 s以内,故障辨识率达到100%.

     

  • 图 1  含特殊负荷的配电网

    Figure 1.  Distribution network with special load

    图 2  支路的等效二端网络

    Figure 2.  Equivalent two-end network of branch

    图 3  配电网分层故障定位模型

    Figure 3.  Hierarchical fault location model for distribution network

    图 4  单层配电网故障定位仿真

    Figure 4.  Fault location simulation of single-layer distribution network

    图 5  分层配电网故障定位仿真

    Figure 5.  Simulation of fault location in layered distribution network

    表  1  故障区域、节点和电流方向

    Table  1.   Fault areas,nodes,and current directions

    区域区域端节点故障电流方向
    1 1
    3 1
    9 −1
    12 0
    15 −1
    17 −1
    22 0
    24 −1
    下载: 导出CSV

    表  2  单一故障仿真结果

    Table  2.   Single failure simulation results

    假定
    故障区段
    {K1,K2,K3}畸变
    位置
    区域
    定位结果
    区段
    定位结果
    (5){0,0,1}(5)
    (9){0,1,1}(9)
    (18){0,1,1}(18)
    (7){1,1,1}(7)
    (5){1,1,1}10(5)
    (7){1,1,1}24(7)
    (24){1,1,1}11(24)
    下载: 导出CSV

    表  3  双重故障仿真结果

    Table  3.   Double-fault simulation results

    假定
    故障区段
    {K1,K2,K3}畸变
    位置
    区域
    定位结果
    区段
    定位结果
    (5)、(7){0,0,1}(5)、(7)
    (7)、(9){0,1,1}二、三(7)、(9)
    (15)、(18){0,1,1}五、六(15)、(18)
    (21)、(24){1,1,1}10六、八(21)、(24)
    (19)、(25){1,1,1}18六、八(19)、(25)
    下载: 导出CSV

    表  4  区段定位结果

    Table  4.   Segment positioning results

    判断故障区域适应度区段状态编码区域状态信息
    1.000[0 0 0 0 0 0]0
    0.667[0 1 0]1
    0.667[0 1 0 0 0]1
    1.000[0 0 0]0
    下载: 导出CSV

    表  5  4种定位模型性能对比

    Table  5.   Performance comparison of four positioning models

    模型准确次数/次平均迭代次数/次
    GA 24 36
    IA 27 21
    IQIA1 30 18
    QIA+IEM 30 10
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-05-13
  • 修回日期:  2019-12-12
  • 网络出版日期:  2020-01-16
  • 刊出日期:  2020-06-01

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