随着网络攻击事件的层出不穷,单一安全防护设备越来越难以应对,迫切需要多种安全防护设备的组合应对.针对电网中多种信息安全防护设备相互独立、缺少联动、难以发现潜在的网络攻击等问题,本文提出电网信息安全三道防线在线联动的模型.该模型通过连接信息映射,实现电力专用安全防护设备与多种不同类型的防火墙的精确在线联动,通过对全局的安全事件关联分析,实现电网信息安全的主动防御.%With the development of cyber-attack technology, it is more and more difficult for a single safety product to respond to cyber-attacks, so combination of various safety products is required. In power grid, various safety products are independent, lack interactions and can not find potential cyber-attack. So an online interaction module of power grid information secure three-defen-ses is proposed. With the mapping of connections information, this module achieves accurate interaction of power special safety protection products with various firewalls. By the global association analysis of security event, the module can achieve active de-fense in power grid.
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