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Electrical Steels for Advanced
Automobiles
—Core Materials for Motors, Generators,
and High-Frequency Reactors— |
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| SENDA Kunihiro NAMIKAWA Misao HAYAKAWA Yasuyuki |
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| Abstract |
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| To develop
electrical steels suitable for the rapidly-progressing
electrification of automobiles and establish
the optimum use technologies, the properties
of core materials in actual machines were
investigated using methods including model
motor measurement, local magnetic measurement
in model motors, and model transformer measurement.
Based on the knowledge obtained as a result
of model motor measurements, “JNE,”
featuring high flux density and low iron loss,
and “JNEH,” with low high frequency
iron loss, were developed as non-oriented
electrical steels for automotive applications.
“JGE” was developed as a grain-oriented
electrical steel suitable for segmented-type
motor cores and features lower iron loss in
directions off the rolling direction than
conventional grain-oriented electrical steel.
Products developed for high frequency reactor
applications include “JFE Super Core
JNEX,” which realizes low noise and low
iron loss in the 400Hz-10kHz region by addition
of 6.5% Si, and “JFE Super Core JNHF,”
which reduces iron loss in the very high frequency
region from 5kHz to 100kHz by a gradient distribution
of Si in the sheet thickness direction. |
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| Full
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Electrical Steels for Advanced Automobiles
—Core Materials for Motors, Generators,
and High-Frequency Reactors—  [
PDF 7P / 625KB ] |
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