Application of Fog Architecture Based on Multi-agent Mechanism in CPPS

In the cyber-physic power system (CPPS) scenario, an increasing number of new devices, such as large-scale electric meters, embedded controllers and powerful computing devices are introduced into the power system. However, the architecture of present power system limits the seamless integration of the information system and physical systems. In this paper, a decentralized CPPS-fog architecture is proposed to address this issue. The proposed architecture distributes computing, communication storage, and control these services to the edge network along the cloud-to-thing continuum while the latter is commonly used in the smart grid. By applying the new architecture to the power system, the intelligence resources of the power system are effectively allocated to the parts closer to end users. Moreover, the realtime monitoring, on-line simulation, information integration, large-scale distributed control, and information security protection are easily achieved. The feasibility and advantages of the CPPS-fog architecture are demonstrated by the application in an island micro CPPS grid project.