Power Electronics

• Understand the interest and role of power electronics;
• Know : the fundamental concepts which govern this discipline, the main structures of electronic power converters;
• Be able to trace the waveforms of currents and voltages in an electronic power converter from a schematic;
• Be able to select the electronic power switches for a given converter and specifications;
• Be able to assess the losses in an electronic power switch;
• Know the technologies used for the production of passive components in power electronics;
• Be able to size the passive components of a converter based on specifications;
• Understand how to achieve a closed-loop control of a power converter (current and/or voltage regulation);
• Have notions of EMC (ElectroMagnetic Compatibility);
• Be aware of current trends in research and open issues in this thematic.

The course focuses on two power converters topologies, dividing the learning objectives into two distinct parts :

• The first part is dedicated to the study of an isolated DC/DC converter (Flyback) for LED applications. The student will learn how to analyze the operation of the converter (current/volatge waveforms analysis), the selection of active and passive devices, the thermal management and the closed-loop control of the converter. A practical work based on a pedagogical test bench will allow the validation of the theoritical analysis.
• The second part aims to study DC to AC power conversion (single phase inverter). The student will learn how to analyze the operation of the converter and its applications as well as the different possible control techniques (PWM, hysteresis...) and their implementation A lecture will be dedicated to the electromagnetic compatibility (EMC) issues in power electronics.