Improved Core Loss Calculation for Magnetic components Employed in Power Electronic Systems


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Date

2011

Publication Type

Conference Paper

ETH Bibliography

yes

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Abstract

In modern power electronic systems, voltages across inductors/transformers generally show rectangular shapes, as the voltage across an inductor/transformer can be positive, negative or zero. In the stage of zero applied voltage (constant flux) core losses are not necessarily zero. At the beginning of a period of constant flux, losses still occur in the material. This is due to relaxation processes. A physical explanation about magnetic relaxation is given and a new core loss modeling approach that takes such relaxation effects into consideration is introduced. The new loss model is called i 2 GSE and has been verified experimentally.

Publication status

published

Editor

Book title

2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

Journal / series

Volume

Pages / Article No.

1729 - 1736

Publisher

IEEE

Event

26th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2011)

Edition / version

Methods

Software

Geographic location

Date collected

Date created

Subject

Core Losses; Ferrite; Steinmetz; Relaxation; Dual Active Bridge

Organisational unit

03889 - Biela, Jürgen / Biela, Jürgen check_circle
03573 - Kolar, Johann W. (emeritus) / Kolar, Johann W. (emeritus)

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