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Sensors 2014, 14(7), 12425-12436; doi:10.3390/s140712425
Article

Synchronous Motor with Hybrid Permanent Magnets on the Rotor

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Received: 29 April 2014 / Revised: 18 June 2014 / Accepted: 24 June 2014 / Published: 10 July 2014

Abstract

Powder metallurgy allows designers of electric motors to implement new magnetic circuit structures. A relatively new concept is the use of a magnet system consisting of various types of magnets on one rotor, for example sintered and bonded magnets. This concept has been applied to the design and manufacture of the four-pole rotor of a synchronous motor with 400 W power and a rotational speed of 1500 rpm. In this motor, the stator of an asynchronous motor type Sh 71-4B is applied. The application of the new construction of the rotor resulted in an increase in motor efficiency and power factor compared to an asynchronous motor with the same volume.
Keywords: magnet system; soft magnetic materials; electric motors magnet system; soft magnetic materials; electric motors
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Slusarek, B.; Kapelski, D.; Antal, L.; Zalas, P.; Gwoździewicz, M. Synchronous Motor with Hybrid Permanent Magnets on the Rotor. Sensors 2014, 14, 12425-12436.

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