Abstract
Abstract:
This paper further elaborates on the topic of
conductor optimization for planar helical foil windings. Part 1 of
this work briefly covers the classical design methods and new
schemes suggested for ac-inductors supported by two case
studies. Optimisation of the windings used in filter inductors,
carrying both ac- and dc-currents simultaneously, are handled in
Part 2 of the publication. Winding shaping techniques, formerly
used for cylindrical conductor windings, are adapted for helical
foil windings placed in gapped cores. The concept of varying
conductor thickness is further used here to achieve substantial
reduction in overall losses with the further advantage of
drastically reducing the time needed for obtaining the optimal
winding shape. The calorimetric methods used to verify results
experimentally are also included in this part.