Improved Core Loss Calculation for Magnetic components Employed in Power Electronic Systems
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Date
2011
Publication Type
Conference Paper
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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.
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published
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Book title
2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
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Pages / Article No.
1729 - 1736
Publisher
IEEE
Event
26th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2011)
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Date collected
Date created
Subject
Core Losses; Ferrite; Steinmetz; Relaxation; Dual Active Bridge
Organisational unit
03889 - Biela, Jürgen / Biela, Jürgen
03573 - Kolar, Johann W. (emeritus) / Kolar, Johann W. (emeritus)
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