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文章摘要
基于改进功率介数的电网风险评估
Power grid risk assessment based on improved power betweenness
Received:July 14, 2016  Revised:August 04, 2016
DOI：
中文关键词: 改进功率介数  电网风险  网络效率  加权潮流熵  直觉模糊层次分析法
英文关键词: 
基金项目:广东电网有限责任公司电力调度控制中心科技项目(036000QQ00150002)
Author NameAffiliationE-mail
Li Ran North China Electric Power University liranlelele@163.com 
Zhai Chenxi* North China Electric Power University zhaichenximail@163.com 
Li Yongbin North China Electric Power University 286394868@qq.com 
Lv Ziyu North China Electric Power University 441460588@qq.com 
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中文摘要:
      针对国务院599号令《电力安全事故应急处置和调查处理条例》以及《中国南方电网有限责任公司电力事故（事件）调查规程（试行）》中强调电网发生事故后对用户侧产生的影响，本文提出考虑发电机和负荷的社会属性的改进功率介数。利用改进功率介数衡量线路和节点的重要度，并将改进功率介数引入到电网故障后果指标，克服传统风险评估方法对发电机和负荷社会属性及潮流流动影响考虑不足的缺陷。故障后果指标选取了考虑电网一次系统权重和二次系统权重的网络效率、电网的加权潮流熵、电压偏移严重程度以及负荷损失严重程度。针对上述故障后果指标，提出采用直觉模糊层次分析法，同时考虑决策过程中隶属度、非隶属度、犹豫度三方面信息，更为客观地评价电网故障后果的严重度。采用非序贯蒙特卡洛法计算故障概率，最终得到电网故障风险。算例结果表明，本文提出的基于改进功率介数的电网风险评估方法可以在强调负荷社会属性的情况下更好评价电网风险。
英文摘要:
      
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