Performance of a fractional dc electric motor equipped with plastic bonded Nd2Fe14B stator poles

Nicolaides, GK; Atanassova, YK; Ioannides, MG; Tsamakis, DM; Gamari-Seale, H

dc.contributor.author	Nicolaides, GK	en
dc.contributor.author	Atanassova, YK	en
dc.contributor.author	Ioannides, MG	en
dc.contributor.author	Tsamakis, DM	en
dc.contributor.author	Gamari-Seale, H	en
dc.date.accessioned	2014-03-01T01:13:15Z
dc.date.available	2014-03-01T01:13:15Z
dc.date.issued	1997	en
dc.identifier.issn	0021-8979	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12392
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0040383420&partnerID=40&md5=cd964f348f2e30829556b5969b166d7f	en
dc.subject.classification	Physics, Applied	en
dc.title	Performance of a fractional dc electric motor equipped with plastic bonded Nd2Fe14B stator poles	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	Injection molding Nd2Fe14B plastic bonded magnetic material is pressed into the form of cylindrical ring segments in order to investigate its performance when used in the manufacturing of stator poles of fractional power de motors. Measurements of speed and armature current versus different load torques were performed. The experimental results obtained for stator poles made by three plastic bonded Nd2Fe14B magnetic materials of different densities, are compared to those results obtained by using a pair of typical barium ferrite stator poles. The torque versus speed curves, the obtained mechanical power versus speed and the efficiency of the motor as a function of the speed are presented. The torque speed data in high speeds follow a linear law, as is expected by theory, while at low speeds, below a crossover point, a deviation from this linearity appears. This is attributed to temperature effects. In this work it is shown that in the region of light loads and high speeds, at a certain speed, the injection molded Nd2Fe14B permanent magnet stators produce a higher electromagnetic torque, higher mechanical power, and higher efficiency than the barium ferrite ones. (C) 1997 American Institute of Physics.	en
heal.publisher	AMER INST PHYSICS	en
heal.journalName	Journal of Applied Physics	en
dc.identifier.isi	ISI:A1997WV53700140	en
dc.identifier.volume	81	en
dc.identifier.issue	8 PART 2B	en
dc.identifier.spage	5100	en
dc.identifier.epage	5102	en