新型电力系统配电自动化安全可信防护模型及评价体系

Security and trustworthy protection model and evaluation system of distribution automation under the new power system

电力物联网是当前新型电力系统发展的一个重要方向.电力物联网天然在运行方式、拓扑形态等方面可以很好地支撑主动配电网的建设,但由于配电网运行环境复杂,既要基于配电物联网来实现物联和全景感知,也要直接面对由于物联网灵活多样的接入环境和方式、数量庞大的终端造成的配电网结构和边界的动态多变,以及面临的更高安全风险,亟需开展里外兼顾、多维融合的配电自动化安全可信防护研究.本文首先介绍了新型电力系统下配电自动化系统的架构,提出了配电自动化安全可信防护模型;其次,建立了基于可信计算的等保指标评价体系,分析其应用于配电自动化系统安全的可行性;再次,对提出的配电自动化安全可信防护模型做出评价,分析其完整性度量和可信网络连接过程;最后,对该架构下的安全性进行了简要总结.

The ubiquitous power Internet of Things(IoT)is an important direction for the development of the current new power system.The ubiquitous power IoT can naturally support the construction of active distribution networks in terms of operation mode and topology.However,due to the complex operating environment of the distribution network,it is necessary to realize the ubiquitous IoT and panoramic views based on the distribution IoT.In terms of perception,it is also necessary to directly face the dynamic changes in the distribution network structure and boundary caused by the flexible and diverse access environments and methods of the IoT,a large number of terminals,and the higher security risks faced.It is urgent to take into account the inside and outside,multi-dimensional integration of power distribution automation security and trusted protection research.This paper firstly introduces the architecture of the distribution automation system under the new power system,and proposes a trusted protection model for distribution automation security;secondly,establishes an evaluation system of equal protection indicators based on trusted computing,and analyzes the feasibility of its application to the security of distribution automation systems;Furthermore,the proposed distribution automation security trusted protection model is evaluated,and its integrity measurement and trusted network connection process are analyzed.Finally,the security under this architecture is briefly summarized.