5ANDERSON L,BRUNNER C. Substation automation based on IEC61850 with new process-close technology[C] JJIEEE Power Tech Conference. Bologna, Italy : [ s.n. ], 2003 : 2-6.
6CLEVELAND E IECTC57 Security standards for the power system's information infrastructure beyond simple encryption [C ] //Trans- mission and Distribution Conference and Exhibition,Proceedings of PES TD. IS.1.] :IEC,2006: 1079-1087.