Modeling as the Foundation of Digital Twins

The role of digital twins in the modern world is growing every day. Therefore, modeling issues as the foundation of digital twins are always relevant. The application area of digital twins are discussed in the article, affecting both laboratory equipment for educational institutions and research centers, and the physical product or technical systems in general at all stages of design, manufacture and subsequent operation. An example of a PID controller model is given in the article. The model is implemented in the mathematical package Matlab. The structure and timing diagrams explaining its operation are given. The possibility of implementing controllers of various types based on a multi-zone regulator is shown. The advantages of such a decision are explained. An example of a multi-zone speed stabilization system of a DC motor is also given. The structure of the multi-zone regulator implemented in the Matlab environment is shown, and timing diagrams explaining the work of the model are given. The article may be interesting for students studying electrical engineering or specialists working in the field of automated electric drive.