title: Synchronous motor with hybrid permanent magnets on the rotor.
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.
authors.affiliation: Tele and Radio Research Institute, 11 Ratuszowa St., 03-450 Warsaw, Poland. barbara.slusarek@itr.org.pl.
authors.forename: Barbara
authors.initials: B
authors.lastname: Slusarek
authors.affiliation: Tele and Radio Research Institute, 11 Ratuszowa St., 03-450 Warsaw, Poland. dariusz.kapelski@itr.org.pl.
authors.forename: Dariusz
authors.initials: D
authors.lastname: Kapelski
authors.affiliation: Wroclaw University of Technology, 27 Wybrzeze Wyspianskiego St., 50-370 Wroclaw, Poland. ludwig.antal@pwr.edu.pl.
authors.forename: Ludwik
authors.initials: L
authors.lastname: Antal
authors.affiliation: Wroclaw University of Technology, 27 Wybrzeze Wyspianskiego St., 50-370 Wroclaw, Poland. pawel.zalas@pwr.edu.pl.
authors.forename: Pawel
authors.initials: P
authors.lastname: Zalas
authors.affiliation: Wroclaw University of Technology, 27 Wybrzeze Wyspianskiego St., 50-370 Wroclaw, Poland. maciej.gwozdziewicz@pwr.edu.pl.
authors.forename: Maciej
authors.initials: M
authors.lastname: Gwoździewicz
mesh_terms: D011211:Electric Power Supplies; D004867:Equipment Design / Q000295:instrumentation*; D008280:Magnetics / Q000295:instrumentation*; D059346:Magnets