Research on Information Security Protection System of Distribution Network Based on Zero Trust Architecture

With the large-scale deployment of customer-side equipment such as distributed photovoltaics and charging piles, along with the integration of modern information and communication technologies like the Internet of Things(IoT) and artificial intelligence(AI), the distribution network is gradually evolving into an open power network characterized by cyber-physical fusion and multi-agent interactive participation, facing new challenges in information security protection. Adapting to the needs of the new situation, this paper analyzes the limitations of current protective measures and constructs a distribution network information security protection system that integrates zero trust architecture with boundary defense. It proposes a trust evaluation technology for intelligent terminal driven by cyber-physical fusion and designs a cloud-edge collaboration implementation method, offering new perspectives for the security protection of the energy internet.