NDLI: Heating method for ferromagnetic metal by power factor control

Content Provider	IEEE Xplore Digital Library
Author	Kubota, S. Yamamoto, N. Ito, F. Shimaoka, Y.
Copyright Year	2011
Description	Author affiliation: Toba National College of Maritime Technology, 1-1 Ikegami-cho, Toba, Mie, Toba, Japan (Kubota, S.; Yamamoto, N.; Ito, F.; Shimaoka, Y.)
Abstract	This paper presents a novel heating method for ferromagnetic metal and the power supply for induction heating. It is known that ferromagnetic metals are heated more easily than paramagnetic metals. However, when ferromagnetic metals are heated more than Curie temperature, their physical properties become the same as paramagnetic metals. In other words, a power supply may be destroyed because a soft switching cannot be maintained. Therefore the power supply and control method are newly proposed. This power supply always achieves a soft switching although metals are heated from low temperature to high temperature. In this power supply, not frequency control but power factor control is applied as new control method. A power factor is controlled with Pulse Width Modulation. It is realized with the simple circuit composition which is connecting one auxiliary switch and one capacitor to full bridge inverter.
Starting Page	1
Ending Page	10
File Size	1318355
Page Count	10
File Format	PDF
ISBN	9781612841670
e-ISBN	9789075815146
e-ISBN	9789075815153
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-30
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	EPE ASSOCIATION
Subject Keyword	Reactive power Temperature Power supplies Heating ZCS converters Metals Switches Zero current switching Resonant converter Induction heating
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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