Safety Risk Analysis and Safety Protection Measures of Power Distribution Internet of Things

With the development of smart grids, a large number of distributed energy equipment, electric vehicles, smart home appliances, etc. are connected to the distribution network, and the interactive operation of the distribution network with users has become more frequent, which brings more security risks to the distribution network. Compared with the main network equipment, the distribution network equipment has greatly reduced its cost and degree of influence. The storage capacity, computing capacity, communication bandwidth and transmission distance of the sensing layer equipment are all more severely restricted than traditional networks. Therefore, it is necessary to fully consider the characteristics of the distribution network and carry out lightweight security protection for the distribution network.This article first studies the overall technical architecture of the power distribution Internet of Things, analyzes the security threats of the perception layer, network layer, and application layer of the power distribution Internet of Things, and formulates security protection measures at each layer according to the characteristics of security threats. Finally, the article focuses on the analysis of lightweight encryption algorithms applicable to the perception layer.The research results of this paper are applicable to the security protection of the Internet of Power Distribution, provide suitable security protection measures for the access of various devices, and provide strong support for the security of the Internet of Power Distribution.