智能变电站网络通信流量实时分析及指纹提取技术研究

Research on Real-time Analysis and Fingerprint Extraction Technology of Network Traffic Flow in Intelligent Substation

文中分析了智能变电站控制系统的特点、安全防护现状及防护需求,针对变电站控制系统网络中的流量分析技术开展了全面的研究,通过对智能变电站网络通信流量的实时分析以及控制行为指纹特征的建立,实现通信异常的监测、定位及隔离。通过科学合理的通信网流量检测和动态主动防御方法,及时阻断攻击源,保障电网的安全稳定运行。

In this paper,the characteristics of intelligent substation control system,the current situation of security protection and the demand for protection are analyzed.Aiming at the flow analysis technology in substation control system network,the comprehensive study is carried out.Through the real-time analysis of network traffic flow in intelligent substation and the establishment of control behavior fingerprint characteristics,which enables monitoring,localization and isolation of communications anomalies.Through scientific and reasonable communication network traffic detection and dynamic active defense method,the attack source is blocked in time to ensure the safe and stable operation of the power grid.