Computation of Core Losses in Electrical Steel Laminations with Impacts of Normal Flux and PWM Switching Considered

Normal flux (perpendicular to the lamination plane) and pulse width modulation (PWM) can have significant impacts on the losses of steel laminations, e.g. in converter-fed synchronous machines or transformers. This paper proposes a model for computing the losses of steel laminations with the impacts...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2024-03, Vol.60 (3), p.1-1
Main Authors: Zhang, Zhaoqiang, Ceballos, Julen Iradi, Nysveen, Arne, Haugan, Thomas S.
Format: Article
Language:English
Subjects:
Computational modeling
Computing time
Core loss
Electrical steels
end-region field
Loss measurement
Magnetic cores
normal flux
Pulse duration modulation
Pulse width modulation
Steel
Steel converters
Switching
Synchronous machines
Voltage measurement
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Summary:Normal flux (perpendicular to the lamination plane) and pulse width modulation (PWM) can have significant impacts on the losses of steel laminations, e.g. in converter-fed synchronous machines or transformers. This paper proposes a model for computing the losses of steel laminations with the impacts of normal flux and PWM switching considered. The total core losses are computed by modifying the core losses of a reference sinusoidal case with the global statistics about supply voltage. A dedicated test setup was developed to validate the loss model. The measurement shows that the proposed model can compute core losses with acceptable accuracy, reasonable computing time, and moderate demand for computing resources.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2023.3305841