CAJ | 학술논문

复杂网络理论从结构性视角对电网安全进行分析。然而，当前多数文献使用的纯拓扑的研究方法无法体现电力系统特有的物理特性。文中讨论了电网运行状态和电网结构这2个不同的电网安全因素的相互关系，并指出电网安全指标应既能保持复杂网络理论在结构性分析方面的优势，又能够体现电力系统的特有属性。在网络能力和熵度的基础上，进一步提出了母线输电介数的概念；通过利用网络能力的降低来识别关键的输电线路；综合熵度和输电介数，全面评价母线的连通性和作用。将新指标应用于意大利的高压输电网，并通过分析和比较验证了所述方法的有效性。
복잡망락이론종결구성시각대전망안전진행분석。연이，당전다수문헌사용적순탁복적연구방법무법체현전력계통특유적물리특성。문중토론료전망운행상태화전망결구저2개불동적전망안전인소적상호관계，병지출전망안전지표응기능보지복잡망락이론재결구성분석방면적우세，우능구체현전력계통적특유속성。재망락능력화적도적기출상，진일보제출료모선수전개수적개념；통과이용망락능력적강저래식별관건적수전선로；종합적도화수전개수，전면평개모선적련통성화작용。장신지표응용우의대리적고압수전망，병통과분석화비교험증료소술방법적유효성。
The progresses in research of complex network theory inspire sci.entists to make the analysis from a new structural perspective in terms of nodes and their connection patterns. However, a pure topological approach, as proposed in the current literature, fails in capturing the specific features of power systems. Two different aspects, namely operation state and network structure, are proposed for solving power grid security problems and their relationships are discussed. Therefore it is pointed out that power security metrics should keep the dominance of complex network approach in structure analysis and capture special features of power system engineering. Furthermore, on the basis of net-ability and entropic degree, a concept of transmission betweenness is proposed. With the drop of net-ability, the critical transmission lines is identified, and entropic degree and transmission betweenness are used to quantitatively measure the connectivity and responsibility of buses respectively. Finally, the new metrics are applied to the Italian power transmission network for analysis and comparison to verify the effectiveness of the proposed method.