CAJ | 학술논문

随着智能电网的发展，未来电力系统将更加依赖于强大的信息系统，这样如何定量评估电力信息系统的脆弱性就成为一个值得研究的重要课题。在此背景下，提出了基于邻接矩阵的电力信息系统脆弱性的定量评估方法，从攻击者的角度出发，将针对电力信息系统的攻击过程分为2个阶段：首先选择攻击接入点，然后从被选中的接入点出发对网络中其他节点进行攻击。此外，采用节点间转移可能性指标来描述攻击者对攻击节点的智能选择能力。之后，建立了一个配电子站的信息模型作为算例进行了计算分析，证明了所提方法的有效性。
수착지능전망적발전，미래전력계통장경가의뢰우강대적신식계통，저양여하정량평고전력신식계통적취약성취성위일개치득연구적중요과제。재차배경하，제출료기우린접구진적전력신식계통취약성적정량평고방법，종공격자적각도출발，장침대전력신식계통적공격과정분위2개계단：수선선택공격접입점，연후종피선중적접입점출발대망락중기타절점진행공격。차외，채용절점간전이가능성지표래묘술공격자대공격절점적지능선택능력。지후，건립료일개배전자참적신식모형작위산례진행료계산분석，증명료소제방법적유효성。
With the development of smart grids,a power system and its information system are going to be seamlessly integrated.Hence the quantitative vulnerability assessment for a power information system becomes an important research topic.Given this background,a quantitative vulnerability assessment method based on the adjacency matrix is developed first. The proposed method employs the transition probability to describe the characteristics of attackers at two stages,i.e.selecting the access point first,and then attacking other nodes in the network from the access point.Besides,the transfer probability index between nodes is used to describe the intelligent ability of the attacker to choose the attack node.Next,the effectiveness of the method developed is demonstrated through an established evaluation example based on the information model of a slave station of a distribution automation system.