Construction of User Identity Authentication Model for New Electric Power System

Under the extensive interconnection of power terminals, the traditional security and stability control architecture has gradually changed to a distributed security and stability control system with the intelligent cooperation of terminals. It has become an urgent problem to establish an interactive authentication and trust mechanism between security and stability control terminals, so as to avoid network attacks on Electric power system (EPS) as much as possible. Blockchain is a chained data structure, and the data in the block can not be tampered with or forged by cryptographic algorithm, which can make up for the single point failure defect of public key certificate authentication. Aiming at the lack of authentication mechanism in the interaction between EPS security and stability control terminals, this article puts forward a new EPS user identification authentication model based on blockchain technology, which realizes the credible communication between various communication entities in the security and stability control system and improves the ability of the security and stability control system to deal with malicious attacks on the network. The simulation results show that this model can achieve 94.2% recall and 96.4% accuracy. It is feasible to use this model to construct the identity authentication and trust system of distributed security and stability control terminals.