| 考虑潮流转移结构特征的输电线路脆弱度在线评估 |
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| 引用本文： | 余兴祥,刘友波,罗辉,林勇,熊阳,陈局.考虑潮流转移结构特征的输电线路脆弱度在线评估[J].电力科学与技术学报,2011(4):80-87. |
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| 作者姓名： | 余兴祥 刘友波 罗辉 林勇 熊阳 陈局 |
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| 作者单位： | 四川省电力公司甘孜公司;四川大学电气信息学院 |
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| 摘 要： | 潮流转移效果常被用于电力系统稳态安全评估.常见方法着重分析线路载荷或输电裕度等参数水平,对线路拓扑位置的影响关注不足.分析输电线路两端节点功率联通强度的熵权度数,将潮流转移结构分布特征融入到衡量输电水平的度量中,构建潮流改变后的输电线路脆弱度评估模型,通过少量计算或测量数据,得到线路脆弱性指标,为调度或运行人员提供更多...
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| 关 键 词： | 朝流转移 熵权修正 隐性故障概率 脆弱度评估 |
On-line assessment for transmission line vulnerability with structure characteristics of power flow transfer considering |
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| YU Xing-xiang,LIU You-bo,LUO Hui,LIN Yong,XIONG Yang,CHEN Ju.On-line assessment for transmission line vulnerability with structure characteristics of power flow transfer considering[J].JOurnal of Electric Power Science And Technology,2011(4):80-87. |
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| Authors: | YU Xing-xiang LIU You-bo LUO Hui LIN Yong XIONG Yang CHEN Ju |
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| Affiliation: | 1(1.Sichuan Electric Power Company,Ganzi subcompany,Kangding 626300,China;2.School of Electrical Engineering and Information,Sichuan University,Chengdu 610065,China) |
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| Abstract: | The results of power flow transfer are usually used to assess steady security of power systems.Conventional methods mainly include load level and margin analysis,whereas,the importance of transmission lines’ location is generally ignored.Based on the entropy weight,structure characteristics of power flow transfer are proposed to quantify the transmission capability,and the vulnerability assessment algorithm of transmission line is established after power flow changed.Only smaller computational complexity,is required in this model,which can provide more useful operation data for dispatchers.New England test results show that the proposed algorithm has high effectivity and practicability |
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| Keywords: | power flow transfer entropy weight correction hidden fault probability vulnerability assessment |
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