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地铁中压环网供电系统可靠性评估方法

林圣 崔臻 杨茜茜 冯玎 臧天磊

林圣, 崔臻, 杨茜茜, 冯玎, 臧天磊. 地铁中压环网供电系统可靠性评估方法[J]. 西南交通大学学报, 2020, 55(6): 1155-1162. doi: 10.3969/j.issn.0258-2724.20190812
引用本文: 林圣, 崔臻, 杨茜茜, 冯玎, 臧天磊. 地铁中压环网供电系统可靠性评估方法[J]. 西南交通大学学报, 2020, 55(6): 1155-1162. doi: 10.3969/j.issn.0258-2724.20190812
LIN Sheng, CUI Zhen, YANG Qianqian, FENG Ding, ZANG Tianlei. Reliability Evaluation Method for Metro Medium-Voltage Ring-Network Power Supply System[J]. Journal of Southwest Jiaotong University, 2020, 55(6): 1155-1162. doi: 10.3969/j.issn.0258-2724.20190812
Citation: LIN Sheng, CUI Zhen, YANG Qianqian, FENG Ding, ZANG Tianlei. Reliability Evaluation Method for Metro Medium-Voltage Ring-Network Power Supply System[J]. Journal of Southwest Jiaotong University, 2020, 55(6): 1155-1162. doi: 10.3969/j.issn.0258-2724.20190812

地铁中压环网供电系统可靠性评估方法

doi: 10.3969/j.issn.0258-2724.20190812
基金项目: 国家自然科学基金(51677153)
详细信息
    作者简介:

    林圣(1983—),男,教授,博士生导师,研究方向为牵引供电系统健康诊断与主动运维、电力系统继电保护与故障定位、城市轨道交通杂散电流分析与抑制等,E-mail:slin@swjtu.edu.cn

  • 中图分类号: V221.3

Reliability Evaluation Method for Metro Medium-Voltage Ring-Network Power Supply System

  • 摘要: 地铁中压环网供电系统起电能分配及传输作用,结构复杂且设备繁多,分析地铁中压环网供电系统可靠性具有重要意义. 本文通过分析地铁中压环网供电系统的拓扑结构和运行方式,采用分区的思想对中压环网供电系统进行区域化、模块化处理,简化复杂系统并提出系统“最小基本单元”的概念,建立系统可靠性评估通用性模型,并运用序贯Monte Carlo法计算中压环网供电系统可靠性评估指标. 通过算例分析可知,在不考虑系统设备磨损的情况下,当抽样次数为50 000次时,求得某条地铁中压环网供电系统稳态可用度为99.996%,验证了通用性模型的可行性.

     

  • 图 1  中压环网供电系统第2分区部分结构

    Figure 1.  Partial structure of second division in medium-voltage ring-network power supply system

    图 2  母线区域最小基本单元FTA模型

    Figure 2.  FTA model diagram of minimum basicbr unit in bus area

    图 3  Ⅰ型最小基本单元FTA模型

    Figure 3.  FTA model of type Ⅰ minimum basic unit

    图 4  Ⅱ型最小基本单元FTA模型

    Figure 4.  FTA model of type Ⅱ minimum basic unit

    图 5  中压环网供电系统母线区域FTA模型

    Figure 5.  FTA model of bus area in medium-voltage ring-network power supply system

    图 6  不含分区联络开关的供电分区FTA模型

    Figure 6.  FTA model of power supply area without zoned connection switch

    图 7  含有分区联络开关的供电分区FTA模型

    Figure 7.  FTA model of power supply area containing zone liaison switch

    图 8  中压环网供电系统通用性FTA模型

    Figure 8.  Universal FTA model of medium-voltage ring-network power supply system

    图 9  某中压环网供电系统FTA模型

    Figure 9.  FTA model of some medium-voltage ring-network power supply system

    图 10  中压环网供电系统及其各区域不可用度

    Figure 10.  Unavailability of medium-voltage ring-network power supply system and its regions

    表  1  中压环网供电系统设备故障参数

    Table  1.   Fault parameters of medium-voltage ring-network power supply system

    具体设备失效率 λ/ × 10−6修复率 μ
    中压断路器 C1~C52 0.285 1/12
    分区联络开关 QF1~QF2 1.784 1/12
    主变电所中压母线 B131~B142 0.024 1/14
    主变电所母联开关 K13~K14 2.511 1/12
    牵引变电所母线 B11~B122 20.550 1/14
    牵引变电所母联开关 K1~K12 1.784 1/12
    中压电缆 D1~D24 21.000 1/14
    下载: 导出CSV

    表  2  中压环网供电系统故障指标统计表

    Table  2.   Fault index statistics of medium-voltage ring-network power supply system

    可靠性指标tMTTR/htMTBF/(× 106 h)A′/ × 10−6A/%
    中压环网
    供电系统
    13.712 036.25837.81899.996 0
    母线区域13.993 62.0276.90399.999 3
    供电分区13.519 840.57829.98499.997 0
    第 1、4 分区13.538 258.68523.06499.997 6
    第 2、3 分区13.557 11.9318.65499.999 1
    Ⅰ型连接8.143 80.6820.15999.999 9
    Ⅱ型连接13.718 662.03922.20599.997 8
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-08-26
  • 修回日期:  2020-02-09
  • 网络出版日期:  2020-07-28
  • 刊出日期:  2020-12-15

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