| KEYWORD |
Design of an active EMC filter for a high-voltage traction inverter
Thesis in external company
keywords ELECTRIC AND HYBRID VEHICLES, ELECTROMAGNETIC COMPATIBILITY, EMC FILTERS
Reference persons CLAUDIO SANSOE'
External reference persons Ing. Maurizio Tranchero
Thesis type DESIGN AND EXPERIMENTS
Description DC-to-AC power converters (i.e., inverters) are based on power transistors that switch between the off- and the on-stage multiple times per second. These transitions are characterized by steep edges that are generating harmonics polluting the environment. This electromagnetic noise can reach other electronic units and cause malfunction. Passive filtering is a well-known approach to limit the effect of these disturbances, but the usage of simple passive components leads to bulky objects that are non-negligible with respect to the size of the power converter. Another approach exploits noise cancelling techniques to improve filter effectiveness and reduce its size (active filtering).
The aim of this work is to investigate different active filter topologies to find the best candidate for a power inverter for automotive traction (800V, 150A). Once the best topology will be found, the student will have to select the best components for the application, design a PCB, and test the prototypes, when they will be available.
Required skills Problem-solving capability
Good knowledge of analog electronics
Good knowledge of power electronics
Basic knowledge of electromagnetic compatibility
Basic knowledge of SPICE simulators and their usage
Notes 50% in University, 50% in external design centre
Deadline 13/07/2024
PROPONI LA TUA CANDIDATURA