基于PFWA算子的层次化网络安全风险量化评估方法  

Hierarchical Network Security Risk Quantitative Assessment Method Based on PFWA Operator

作　　者：常杰 董蕴萌 刘硕 郭禹伶 CHANG Jie;Dong Yunmeng;LIU Shuo;GUO Yuling(State Grid Hebei Electric Power Research Institute,Shijazhuang 050021,China;State Grid International Debelopment Co.,Ltd.,Beijing 10031,China)

机构地区：[1]国网河北省电力有限公司电力科学研究院,河北石家庄050021 [2]国网国际发展有限公司,北京100031

出　　处：《河北电力技术》2023年第1期62-65,共4页Hebei Electric Power

摘　　要：电力系统数据分析是影响电力系统稳定运行的关键因素,在实际运行过程中,电力系统层次化网络安全风险量化评估结果与实际安全威胁态势变化具有差异性,导致电力系统安全风险量化评估精度较低,本文提出了基于PFWA算子的层次化网络安全风险量化评估方法。首先,构建电力系统层次化网络安全风险评估指标体系,挖掘电力系统层次化网络安全风险产生原因和评价标准,分析了安全信息属性;其次,引入PFWA算子、提出量化行为预期值理论、计算层次化矩阵、准确定位网络安全风险结果;最后,量化处理网络安全风险数值,并对电力系统不同阶段风险进行排序,实现层次化网络安全风险量化评估,保证电力系统网络环境安全可靠。实验结果表明,评估结果与实际变化情况偏差较小,能够有效提高电力系统网络安全风险量化评估精度。Power system data analysis is a key factor that affects the stable operation of the power system.In the actual operation process,the evaluation results of the power system hierarchical network security risk quantitative assessment method are differ-ent from the actual security threat situation changes,leading to the accuracy of the power system security risk quantitative as-sessment Therefore,this paper proposes a hierarchical network security risk quantitative assessment method based on the PF-WA operator.First,build a hierarchical network security risk assessment index system for power systems,explore the causes and evaluation criteria of hierarchical network security risks in the power system,and analyze security information attributes;secondly,introduce PFW A operators,provide quantitative behavior expected value theory,and calculate hierarchical levels Ma-trix,accurately locate the network security risk results finally,quantify the network security risk value,and sort the risks of different stages of the power system,realize the quantitative assessment of the power hierarchical network security risk,and en-sure the basic safety of the power system network environment.The experimental results show that the evaluation results of this paper have a small deviation from the actual changes,which can effectively improve the accuracy of the quantitative evaluation of power system network security risks.

关 键 词：PFWA算子 电力系统层次化 安全风险 量化评估 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]