Modeling and Simulation of Intelligent Substation Relay Protection Based on Adaptive Agent Model

The power information system and the physical system are independent event systems and schedule systems, and their forms are completely different. At present, there is no simulation software based on the unified model of the physical information and the physical system. Some researches combine basic software simulation system elements and specific software simulation system information to develop hybrid simulation environment, but it is difficult to solve the time and accuracy of information interaction between different software. The purpose of this paper is to study the modeling and simulation of relay protection in smart substations based on adaptive proxy models. This paper analyzes the DEVS modeling technology and knowledge devices, and introduces the DEVS++ system library. Implementing DEVS model substation communication tools (switches, ports, channels, transmitters and data link receivers) and DEVS network model, data layer maintenance problems are calculated and analyzed. Intelligent electronic configuration of equipment (transformers, DEVS models of combined units, smart terminals, distance protection) and capabilities of physical systems, as well as the modeling process at the network layer, is a hybrid model for understanding Cyber substations and simulations verify the correctness of the model. Experiments have shown that the model constructed in this paper, with the increase of samples, the local accuracy will first decrease and then increase, but the degree of education is lower, and then steadily increase. The error between the simulated power and the actual power is more accurate within 0.02.