Research on Security Protection Technology of Power System Information Network Facing Zero Trust Network Environment

Power system information security is a multi-field and complex large-scale system engineering involving power grid dispatching automation, relay protection and safety devices, plant and station automation, distribution network automation, power load control, power market transaction, power marketing, information network system and other related production, operation and management aspects. This paper attempts to study the security protection technology of power system information network in the environment of zero-trust network. The results show that the packet loss rate of SVM (Support Vector Machine) and PSO (Particle Swarm Optimization) generally reach 45% or more in the test results of packet loss rate, which are higher than the method in this paper. However, in the test of load rate, it can also be found that the load rate of this method is between the best 75-80 ^% . This shows that this method has strong prediction and analysis ability and ensures the intelligence of power system.