E-Learning System for Power Electronics Converters

A multimedia and interactive system to help teaching power conversion techniques for AC/DC, DC/AC and AC/AC is described as a tool for both teachers and students. The tool include many different suitable topologies for the aforementioned power systems. In each different topology, the user can select among types of loads: resistive, inductive, capacitive and combinations. Firing angles and modulation schemes can also be selected to show different behavior of the topologies. Some values are selected by introducing the desired value, and remain fixed during simulations while other values can be dynamically adjusted with sliding rules during simulations. During the simulation the circulating current direction and the state of semiconductor switches is shown, by means of changing colors. The multimedia system includes documentation on all the subjects, showing basic concepts and equations, in pdf format and links to industrial manufacturers. One of the main contributions is that all the system is in Spanish language, becoming useful for classroom and laboratories duties without the need of translation. Once finished with the simulations, the students can auto evaluate themselves with an automated test set. This feature helps the students to establish the knowledge level acquired after employing the multimedia tool.