基于可信计算的主动配电网信息安全防护研究

针对智能电网重要组成部分的主动配电网信息安全防护问题,首先对主动配电网"发、输、配、用"电环节中存在的信息安全问题进行分析;然后参考配电自动化系统设计针对区域能源互联网提出总体安全可信防护方案,依据方案建立可信链条,保障节点、网络连接及应用的可信;最后对方案进行示例验证,数据传输、存储主要采用SM2和SM4加密算法。考虑到下行数据会有大量重复密码运算过程,采用批量认证方法,通过使用Merkle哈希树合并多认证请求,提高了数据处理效率。

Research on Information Security Protection of Active Distribution Network Based on Trusted Computing

Aiming at the problem of information security protection for the active distribution network, which is an important component of the smart grid, this paper firstly analyzes the information security problems in the "power generation, transmission, distribution and utilization" links of the active distribution network. Then, referring to the design of the power distribution automation system, an overall safe and credible protection scheme for the regional energy internet is proposed, and a credible chain is established according to the scheme to ensure the credibility of nodes, network connections and applications. Finally, it verifies the scheme by an example. SM2 and SM4 encryption algorithms are mainly used for data transmission and storage. Considering that downlink data will have many repeated cryptographic operations, the paper adopts batch authentication method, and combines multiple authentication requests by using Merkle hash tree to improve data processing efficiency.