NDLI: The use of iron-nickel and iron-cobalt alloys in electrical engineering, and especially for electrical motors

Content Provider	IEEE Xplore Digital Library
Author	Frederic, B. Thierry, W. Herve, F.
Copyright Year	2007
Abstract	Today, one of the most important challenges for electrical motors is increasing the efficiency to obtain more power with the same electrical energy consumed. The use of iron-nickel and iron-cobalt alloys can significantly reduce the magnetic losses, and then increase the efficiency. At the same time, electrical motors are increasing their rotating speed thanks to the progress made in power electronics. The supply to the motors is not only limited to a frequency of 50 or 60 Hz, but will now be hundreds of hertz. Due to this, the magnetic field applied to the material in the stator is a high frequency and then induces high magnetic losses. The use of iron-nickel alloy and iron-cobalt alloys can reduce significantly the magnetic losses The magnetic sensitivity of iron-nickel alloys can not be reached by any other alloy. An example of sensor is presented in this paper. Induction at saturation of iron-cobalt is the highest known. This parameter can be directly linked to the size of the magnetic device. Using iron-cobalt alloys allows a 30% volume reduction.
Starting Page	394
Ending Page	401
File Size	2090294
Page Count	8
File Format	PDF
ISBN	9781424404469
DOI	10.1109/EEIC.2007.4562649
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Iron alloys Electrical engineering Saturation magnetization Magnetic losses Frequency Magnetic materials Power electronics Magnetic fields Stators Magnetic sensors efficiency Iron-Nickel Iron-Cobalt sensitivity sensors motor magnetic losses
Content Type	Text
Resource Type	Article

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