Sizing of Power Electronics EMC Filters using Design by Optimization Methodology
Résumé
This paper proposes a synthesis of EMC filter
design method for power electronics converters. It starts with the
description of the legacy approach, using the usual Common
Mode / Differential Mode decomposition, and underlines the need
of symmetry and the associated limits. Then an illustration of a
design by optimization process is provided in the case of a simple
switching cell. Finally, a full system composed of a PFC rectifier
is provided, using EMC filters on both AC and DC sides. This
example requires a design by optimization, since the two filters
exhibit strong interactions.