CAJ | 학술논문

计算机与信息技术在电力系统中的广泛应用提高了电网的自动化、智能化水平，同时也将传统IT领域的众多安全隐患引入了电网。智能电网是社会域、信息域、物理域多域交互、渗透形成的大规模新型融合网络，其安全威胁具有多域渗透、跨域攻击的特点。文中描述了智能电网基本安全需求及其与传统IT安全需求的不同；分析了智能电网中多域渗透攻击并且对信息-物理安全威胁进行分类；基于分域防护、多域协同、边界防护的思想提出了智能电网多域协同安全防护模型。
계산궤여신식기술재전력계통중적엄범응용제고료전망적자동화、지능화수평，동시야장전통IT영역적음다안전은환인입료전망。지능전망시사회역、신식역、물리역다역교호、삼투형성적대규모신형융합망락，기안전위협구유다역삼투、과역공격적특점。문중묘술료지능전망기본안전수구급기여전통IT안전수구적불동；분석료지능전망중다역삼투공격병차대신식-물리안전위협진행분류；기우분역방호、다역협동、변계방호적사상제출료지능전망다역협동안전방호모형。
Computer and information technologies have been widely applied into the power system to enhance its automation and intelli-gence level,which brings numerous threats from traditional IT areas to power grid. Smart Grid is a new converged network formed by the interaction and penetration of social domain,information domain and physical domain,and the threats and attacks in Smart Grid can cross domains. In this paper,discuss the primary security requirements of Smart Grid and their differences from traditional IT security. Cross-domain attacks are analyzed and information-physical threats are classified. Based on the thoughts including protection in separating do-mains,multi-domain cooperation and enhancing protection on boundaries,the multi-domain and cooperative protection model for Smart Grid is proposed.