Abstract:

Teaching switched mode power electronics is essentially build around theoretical classes and laboratory experiments. The bridge between the two, is the ability to use modeling and simulation of the switched mode power supplies during the theoretical lectures and laboratory exercises. During the theoretical lectures, simulations brings the subject alive, the preparations before doing an experiment can be enhanced by simulation of the experimental set up.
In this paper a multilevel modeling and simulation program Caspoc is presented that is used both during the oral lectures and during laboratory classes. During the oral lectures, the functioning and behavior of switched mode power supplies is shown via simulation and the influence of parameter variations is directly demonstrated. In the laboratory classes, the students first have to study the experiment, using the digital twin of the experimental setup of the switched mode power supply.
Simulation results obtained during the oral lectures and during laboratory classes can be compared and verified with results from the experimental set up.
Important is the comparison in look and feel of the digital twin with the experimental set up, without going to deep into component detail. Especially in education, the focus should be on the parameters that are key to the functioning of the switched mode power supply. Therefore, special generic models are build inside Caspoc that require a minium set of parameters. Using these generic models, the students are able to understand the complex functioning and behavior of closed loop controlled switched mode power supplies.

Keywords:

Modeling, Simulation, Power Electronics, Caspoc, Digital Twin, Closed Loop Control.