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Title: Magnetic properties of 6.5% silicon steel sheets under PWM voltage excitation

Abstract

Power losses of 6.5% silicon steel sheets under PWM (Pulse Width Modulation) voltage excitation were examined. The PWM wave was composed of a 50Hz fundamental wave, a 16kHz carrier frequency wave and some other higher harmonics. It was found that the power losses of the inductor cores were much larger than those of the transformer cores when the cores were driven by a PWM inverter, although such a great difference was not observed under sinusoidal voltage excitation. Power losses of the inductor made of 6.5% silicon steel sheets and conventional grain oriented 3% silicon steel sheets under PWM voltage excitation were also investigated. It was found that the power losses of the inductor made of 6.5% silicon steel sheets were reduced by more than 30% compared to those of the inductor made of grain oriented 3% silicon steel sheets. This was because the grain oriented 3% silicon steel sheets had higher losses at higher harmonics found in the PWM excitation. Therefore, it was clearly shown that 6.5% silicon steel sheet was a suitable material for the inductor under PWM voltage excitation.

Authors:
; ; ;  [1]
  1. NKK Corp., Kawasaki (Japan). Materials and Processing Research Center
Publication Date:
OSTI Identifier:
649518
Report Number(s):
CONF-980102-
Journal ID: IEMGAQ; ISSN 0018-9464; TRN: IM9825%%131
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics
Additional Journal Information:
Journal Volume: 34; Journal Issue: 4Pt1; Conference: 7. joint MMM-intermag conference, San Francisco, CA (United States), 6-9 Jan 1998; Other Information: PBD: Jul 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 24 POWER TRANSMISSION AND DISTRIBUTION; STEELS; SILICON ALLOYS; MAGNETIC PROPERTIES; POWER LOSSES; INVERTERS; TRANSFORMERS; GRAIN ORIENTATION; EXPERIMENTAL DATA

Citation Formats

Namikawa, M, Ninomiya, H, Tanaka, Y, and Takada, Y. Magnetic properties of 6.5% silicon steel sheets under PWM voltage excitation. United States: N. p., 1998. Web. doi:10.1109/20.706469.
Namikawa, M, Ninomiya, H, Tanaka, Y, & Takada, Y. Magnetic properties of 6.5% silicon steel sheets under PWM voltage excitation. United States. https://doi.org/10.1109/20.706469
Namikawa, M, Ninomiya, H, Tanaka, Y, and Takada, Y. 1998. "Magnetic properties of 6.5% silicon steel sheets under PWM voltage excitation". United States. https://doi.org/10.1109/20.706469.
@article{osti_649518,
title = {Magnetic properties of 6.5% silicon steel sheets under PWM voltage excitation},
author = {Namikawa, M and Ninomiya, H and Tanaka, Y and Takada, Y},
abstractNote = {Power losses of 6.5% silicon steel sheets under PWM (Pulse Width Modulation) voltage excitation were examined. The PWM wave was composed of a 50Hz fundamental wave, a 16kHz carrier frequency wave and some other higher harmonics. It was found that the power losses of the inductor cores were much larger than those of the transformer cores when the cores were driven by a PWM inverter, although such a great difference was not observed under sinusoidal voltage excitation. Power losses of the inductor made of 6.5% silicon steel sheets and conventional grain oriented 3% silicon steel sheets under PWM voltage excitation were also investigated. It was found that the power losses of the inductor made of 6.5% silicon steel sheets were reduced by more than 30% compared to those of the inductor made of grain oriented 3% silicon steel sheets. This was because the grain oriented 3% silicon steel sheets had higher losses at higher harmonics found in the PWM excitation. Therefore, it was clearly shown that 6.5% silicon steel sheet was a suitable material for the inductor under PWM voltage excitation.},
doi = {10.1109/20.706469},
url = {https://www.osti.gov/biblio/649518}, journal = {IEEE Transactions on Magnetics},
number = 4Pt1,
volume = 34,
place = {United States},
year = {Wed Jul 01 00:00:00 EDT 1998},
month = {Wed Jul 01 00:00:00 EDT 1998}
}