关键词: 电网, 电力系统安全, 大停电事故, 网络攻击, 信息能源系统, 安全防御体系, 黑色能量, 智能电网

Abstract: On December 23, 2015 and December 16, 2016, the Ukrainian power grid suffered twice serious power outages originated from the malicious code. The first outage was considered as the first public cyber-attack against grid infrastructures in the world. The blackout process, techniques and effects of the 2015 cyber-attack accident are reproduced in the paper, and a general attack framework is then summarized. Considering the critical threats and challenges faced by the cyber information system of China power grid, this paper proposes some ponders and suggestions based on the overall objective of the preliminary construction of Chinese Smart Grid in 2020. The ponders include raising the attention level of cyber security from information war aspect, reassessing the physical isolation method and coordinating cyber security with information open. The suggestions on construction of a strong cyber information security defense system include conducting effective security exercises, promoting localization of core equipment system and others.

Key words: power grid, power system security, blackout, cyber attack, information system, defense hierarchy, black energy, smart grid