The effect of third harmonic flux distortion on the core losses in thin magnetic steel laminations
- 1 November 1977
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. 96 (6) , 1856-1862
- https://doi.org/10.1109/T-PAS.1977.32519
Abstract
A simple and practical method of estimating the effect of 3rd harmonic flux distortion on the total core loss in a thin lamination is described. The necessary eddy current correction factor is derived using simple methods. For distortion levels of less than 30%, it is shown that the hysteresis loss remains unchanged from its sinusoidal value, to a good approximation. Experimentally measured losses in 0.014" and 0.025" laminations, at distorted flux levels ranging from 0.8 to 1.9 T, are used to verify the results of the analysis.Keywords
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