CAJ | 학술논문

为评估节点故障对电网的静态性能的影响，构建了一种基于复杂网络理论的电网脆弱性综合评价指标。在由最大连通子集与网络平均效率组成的结构脆弱性指标，以及由失负荷比例与电网功率传输效率组成的功能脆弱性指标的基础上，构建了一种基于熵值模糊综合评价法的脆弱性综合指标。该方法克服了多种指标赋权时，主观性强、容易出现与实际数据不相符的现象。最后通过对IEEE-118节点系统的仿真、分析，比较了随机、节点度、节点电气介数、传统线路介数以及线路电气介数5种不同的攻击对电网的脆弱性综合指标、各个单一指标的影响，同时验证了该综合指标的合理性。
위평고절점고장대전망적정태성능적영향，구건료일충기우복잡망락이론적전망취약성종합평개지표。재유최대련통자집여망락평균효솔조성적결구취약성지표，이급유실부하비례여전망공솔전수효솔조성적공능취약성지표적기출상，구건료일충기우적치모호종합평개법적취약성종합지표。해방법극복료다충지표부권시，주관성강、용역출현여실제수거불상부적현상。최후통과대IEEE-118절점계통적방진、분석，비교료수궤、절점도、절점전기개수、전통선로개수이급선로전기개수5충불동적공격대전망적취약성종합지표、각개단일지표적영향，동시험증료해종합지표적합이성。
To assess the impact of node￣fault on the static performance of power grid, this paper proposed the vulnerability comprehensive index for power grid based on the complex network theory. This paper constructed the structural vulnerability index consisting of the largest connected subset and the average efficiency of the network, as well as the functional vulnerability index consisting of the proportion of the loss load and the grid power transmission efficiency. On this basis, this paper proposed a vulnerability comprehensive index based on the entropy value fuzzy comprehensive assessment method, which could overcome the strong subjectivity and the inconsistency with the real data when its vulnerability indexes were empowered. Finally, the numerical simulations and analyses for the attacks: random, node degree, node electrical betweenness, traditional line betweenness and line electrical betweenness, were investigated based on the IEEE￣118 bus system respectively. The impacts of these five types of attacks on the grid comprehensive vulnerability index and every single index were analyzed, meanwhile, the rationality of the comprehensive index was verified.