Design of a Ferrite Permanent Magnet Rotor for a Wind Power Generator
Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Due to the insecurity of the supply of raw materials needed for neodymium-iron-boron magnets, typically used in permanent magnet generators, the use of ferrite magnets as an alternative was investigated. The investigation was conducted by attempting to redesign a generator that previously used neodymium-iron-boron magnets for use with ferrite magnets. The major part of the redesign was to find an alternate rotor design with an electromagnetic design adapted to the characteristics of the ferrite magnets.It was found that ferrite magnets can be used to replace neodymium-iron-boron magnets with changes to the electromagnetic design of the rotor. The changes of the electromagnetic design increase the amount of magnetically active material in the rotor and, therefore, require the mechanical design of the rotor to be changed. The new rotor design also requires some changes to the generator support structure. A design for a replacement rotor, using ferrite magnets, along with the required changes to the support structure, is presented.
Place, publisher, year, edition, pages
2013. , 47 p.
UPTEC ES, ISSN 1650-8300 ; 13018
generator design, ferrite permanent magnets, wind power
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:uu:diva-202416OAI: oai:DiVA.org:uu-202416DiVA: diva2:632021
Master Programme in Energy Systems Engineering
2013-06-13, Ångströmlaboratoriet, rum 2002, 13:15 (English)
Pernestål, Kjell, UniversitetslektorEriksson, Sandra, Universitetslektor