Abstract:

On the basis of analyzing the security threats in smart substation,a security situation awareness framework was proposed,combined with integrated physical security,network security,system security,protocol security,data security and so on.And a network security monitoring solution for substations was provided.It was a special intelligent substation network security situation awareness device which could collect the security events,analyze them and generate situation analysis results.Further more,everal key technologies used in our frameworks were focused on.Finally,a design scheme including hardware and software for the smart substation network security awareness system and its implementation architecture were described,in which a multi-layer software architecture was adopted by the system,and a combinatory of the Intel Sandy Bridge,the bus structure and a modular design technology,was adopted in order to meet the need of high performance.

Key words: situation awareness, network security, smart substation