Research on Unified Access Technology of Multi-Service and Multi-Scenario Power Iot Terminals

The intelligent terminals of the power system are widely interconnected and ubiquitous, and the terminals are easy to become the main target and springboard for attacking the power grid. Based on this research background, this paper proposes a terminal authentication platform for electric Internet of Things based on zero-trust security architecture. It provides multiple functions, including device authorization, identity authentication, key management, encrypted transmission, session management, and data signature. The system has realized the design of three-layer power distribution terminal access architecture with the characteristics of multi-network cooperation and self-healing. A variety of application scenarios are proposed, and three-dimensional applications of "multi-service access, multi-domain slice, and flexible management and control of multidimensional resources" are carried out. Through simulation experiments, it is found that the system can meet the massive small data connection requirements of energy Internet businesses, including power plants, substations, electric transportation infrastructure, distributed generation operation and maintenance, and environmental monitoring.