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地磁暴条件下电网连锁故障风险评估

康小宁 张亚刚 徐旖旎 郭明达 张欣悦

康小宁, 张亚刚, 徐旖旎, 等. 地磁暴条件下电网连锁故障风险评估[J]. 强激光与粒子束, 2019, 31: 070015. doi: 10.11884/HPLPB201931.190171
引用本文: 康小宁, 张亚刚, 徐旖旎, 等. 地磁暴条件下电网连锁故障风险评估[J]. 强激光与粒子束, 2019, 31: 070015. doi: 10.11884/HPLPB201931.190171
Kang Xiaoning, Zhang Yagang, Xu Yini, et al. Power system fault chain simulation model considering effect of geomagnetic storm conditions[J]. High Power Laser and Particle Beams, 2019, 31: 070015. doi: 10.11884/HPLPB201931.190171
Citation: Kang Xiaoning, Zhang Yagang, Xu Yini, et al. Power system fault chain simulation model considering effect of geomagnetic storm conditions[J]. High Power Laser and Particle Beams, 2019, 31: 070015. doi: 10.11884/HPLPB201931.190171

地磁暴条件下电网连锁故障风险评估

doi: 10.11884/HPLPB201931.190171
基金项目: 

国家重点研发计划项目 2016YFC0800100

详细信息
    作者简介:

    康小宁(1968—), 男, 教授, 从事电力系统继电保护与变电站综合自动化系统研究, kangxn@xjtu.edu.cn

    通讯作者:

    张亚刚(1995—), 男, 硕士研究生, 从事重大灾害下电力系统风险评估研究, zhang_yagang@163.com

  • 中图分类号: TM732

Power system fault chain simulation model considering effect of geomagnetic storm conditions

  • 摘要: 地磁扰动会在高压电网中诱发产生地磁感应电流(GIC), 使得电力变压器等发生相继故障, 从而导致电力系统崩溃或者引起大停电事故, 研究地磁暴条件下电网连锁故障风险评估能够为预防其引起的电网事故提供重要参考。对地磁暴条件下电网连锁故障的机理进行了分析, 提出了地磁暴条件下电网连锁故障风险评估流程, 该流程可以识别各个地磁暴条件下电网的薄弱环节; 利用系统的负荷削减量来评估连锁故障各个阶段对系统的危害, 同时利用给定地磁暴条件下该薄弱环节导致电力系统崩溃所削减的临界负荷量来评估其对电力系统的危害。利用IEEE-RTS79系统对于所提出的流程进行验证, 验证结果表明所提出流程的可行性和有效性, 所得结果可以为量化和防范地磁暴电网风险提供参考。
  • 图  1  地磁暴灾害下电网电压崩溃过程

    Figure  1.  Process of voltage collapse under geomagnetic storms

    图  2  地磁暴条件下电网连锁故障风险评估流程

    Figure  2.  Risk assessment process for cascading failures of power grids under geomagnetic storms

    图  3  GIC计算模型

    Figure  3.  Computing model of GIC

    图  4  脆性基元

    Figure  4.  Brittle elements

    图  5  IEEE-RTS79系统拓扑图

    Figure  5.  Topology of IEEE-RTS79

    表  1  各个地磁暴条件下电力系统的薄弱环节

    Table  1.   Vulnerable links of power system under each geomagnetic storm level

    No. E=0 (V/km) $E=3 \sqrt{2} \angle 45^{\circ}(\mathrm{V} / \mathrm{km})$ $E=5 \sqrt{2} \angle 45^{\circ}(\mathrm{V} / \mathrm{km})$ $E=9 \sqrt{2} \angle 45^{\circ}(\mathrm{V} / \mathrm{km})$
    1 L11 L11 L11 L11
    2 L10 L10 L10 L19
    3 L7(T)-L29-L23 L7(T)-L29-L23 L27 L10
    4 L27-L29-L23 L27 L23-L19 L18
    5 L23-L18-L20-L21-L7-L11 L3-L28-L24-L29-L18-L20-L21 L7(T)-L29-L23 L2
    6 L5-L11 L23-L18-L20-L21-L7-L11 L4-L11 L12
    7 L17(T)-L16(T)-L3-L12-L5 L17(T)-L16(T)-L3-L5-L12 L18-L23-L19 L20
    下载: 导出CSV

    表  2  连锁故障评估

    Table  2.   Assessment of cascading failure

    No. branch Δ P/MW P/PD)/%
    1 L23 13.61 0.48
    2 L18 195.49 6.86
    3 L20 166.27 5.83
    4 L21 238.19 8.36
    5 L7(T) 228.40 8.10
    6 L11
    Δ PS 841.96 29.63
    下载: 导出CSV

    表  3  $E=3 \sqrt{2} \angle 45^{\circ}$条件下各个故障链的临界负荷削减量

    Table  3.   Critical load shedding of vulnerable links under $E=3 \sqrt{2} \angle 45^{\circ}$

    No. $E=3 \sqrt{2} \angle 45^{\circ}$ (V/km) Δ PS/MW PS/ PD)/%
    1 L11
    2 L10
    3 L7(T)-L29-L23 76.16 2.67
    4 L27
    5 L3-L28-L24-L29-L18-L20-L21 383.49 13.46
    6 L23-L18-L20-L21-L7(T)-L11 841.96 29.63
    7 L17(T)-L16(T)-L3-L5-L12 288.13 10.11
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-05-17
  • 修回日期:  2019-06-15
  • 刊出日期:  2019-07-15

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