Physical Modeling of Core Losses in Ferrite E-Cores | IEEE Journals & Magazine | IEEE Xplore

Physical Modeling of Core Losses in Ferrite E-Cores


Abstract:

The development of advanced power electronic converters requires an accurate calculation of core losses in magnetic devices. But the losses in the widely used ferrite cor...Show More

Abstract:

The development of advanced power electronic converters requires an accurate calculation of core losses in magnetic devices. But the losses in the widely used ferrite cores depend on the shape of the core, especially above 10 kHz, meaning that core losses can not be estimated by simply scaling reference data with respect to the volume of the core. To include efficiently the geometry of the core into the calculation of core losses, this article presents the Combined Field and Material Model (CFM2) for E- or U-cores. This method combines an analytical solution of the field in the core with a non-linear material model of ferrite, modelling all relevant loss phenomena such as hysteresis losses and non-linear resonant eddy currents. The CFM2 enables an accurate calculation of core losses over a wide range of frequency and flux density using a reduced set of physical parameters.
Published in: IEEE Open Journal of Power Electronics ( Volume: 6)
Page(s): 597 - 612
Date of Publication: 26 March 2025
Electronic ISSN: 2644-1314

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