Method for approaching the Cyber-Physical Systems

The main topics of the Cyber-Physical Systems (CPSs) cover the specification, modeling, control, design, verification and testing. The CPSs implementation consists of reactive programs conceived using models that are capable to sustain the mentioned activities. Component diagrams (introduced by Unified Modeling Language) are used here for the architecture design, with the goal to split the CPS complexity into smaller entities that are easier to tackle. All the components are modeled by Fuzzy Logic Enhanced Time Petri Nets (FLETPNs) that can simultaneously describe the discrete event and the time discrete features. This unique and compact approach facilitates the control synthesis, the software design, the verification and the testing. An example of application to the control of a system composed of a wind turbine generator, a photo-voltaic generator and loads is used to show the model utilization and its benefits.