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文章摘要
基于有限PMU的输电网广域后备保护方法
A Backup Wide-Area Protection Technique for Power Transmission Network with limited PMUs
Received:September 27, 2019  Revised:September 27, 2019
DOI：10.19753/j.issn1001-1390.2021.10.015
中文关键词: 相量量测单元  广域后备保护  故障定位  输电线路保护
英文关键词: phasor measurement units  wide-area protection  fault locationing  transmission line
基金项目:国家电网有限公司科技项目,名称：异构网络和异构数据融合的变电站一体化智能运维关键技术研究与应用,(521205190006)
Author NameAffiliationE-mail
Wang Yu* Electric Power Research Institute,State Grid Anhui Electric Power Company Limited wycnmg@sina.com 
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中文摘要:
      提出了一种仅利用有限个PMU对输电线路实现广域保护。首先在满足故障完全可观性的条件下,利用二进制整数线性规划求解PMU最小数量；然后计算装有PMU节点的正序电压幅值的最大与最小瞬时值之差的绝对值,得到该绝对值最大的节点。再利用基尔霍夫电流定律确定故障距离以及故障线路。最后在IEEE9节点系统上的仿真验证了所提模型的有效性,在不同负荷水平、外部故障、频率波动、量测和同步误差、不同故障类型以及故障初相角下都有较高的鲁棒性。
英文摘要:
      
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