Data traffic scheduling for cyber physical systems with application in voltage control of microgrids

The design of communication infrastructure in cyber physical system (CPS) is of key importance since it conveys information from sensors to controllers. Different from traditional scheduling algorithms designed for pure data communication networks, the scheduling in CPS is for the purpose of optimizing the physical dynamics and should be designed with the awareness of the dynamics. In this paper, the scheduling problem in CPS is fitted into the framework of hybrid systems, in which different selections of communication links correspond to different dynamics modes. Both centralized and distributed scheduling algorithms are discussed. The proposed algorithms are also applied in the background of voltage control of distributed energy generations (DEGs) in microgrids. Numerical simulations show that the proposed framework and algorithms achieve good performance.