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Author:Manninen, Aino
Title:Evaluation of the effects of design choices on surface mounted permanent magnet machines using an analytical dimensioning tool
Kestomagnetoidun tahtikoneen suunnitteluparametrien vaikutuksen arviointi analyyttisen mitoitustyökalun avulla
Publication type:Master's thesis
Publication year:2012
Pages:76 + [7]      Language:   eng
Department/School:Sähkötekniikan laitos
Main subject:Sähkömekaniikka   (S-17)
Supervisor:Arkkio, Antero
Instructor:Pippuri, Jenni ; Tammi, Kari
Electronic version URL: http://urn.fi/URN:NBN:fi:aalto-201209213169
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Electronic archive copy is available via Aalto Thesis Database.
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Location:P1 Ark Aalto  1168   | Archive
Keywords:permanent magnet synchronous machine
design
dimensioning tool
kestomagnetoitu tahtikone
suunnittelu
mitoitustyökalu
Abstract (eng): During the design of a permanent magnet machine, there are several parameters that can be chosen quite freely.
These parameters affect the machine properties such as efficiency, power factor, size and volume of the permanent magnets.
By choosing these parameters well, a compact design is obtained.
The purpose of this Master's Thesis is to evaluate the effect of different design parameters.
The study concentrates on surface mounted permanent magnet machines with single layer winding in the stator.

To be able to evaluate the effect of the design choices, a dimensioning tool is implemented with MATLAB software.
The tool is based on analytical equations that can be found from the literature.
The implemented dimensioning tool was verified by comparing the results with FEM calculations.
The results show that the machine size can be reduced by for example increasing the pole pair number, the current density in the stator winding or the magnetic flux density in the stator.
On the other hand, the efficiency is decreased.
Abstract (fin): Tämä diplomityö käsittelee kestomagnetoidun tahtikoneen suunnitteluparametrien kuten esimerkiksi napapariluvun tai ilmavälivuontiheyden vaikutusta koneen ominaisuuksiin.
Työssä toteutettiin analyyttisiin laskentakaavoihin perustuva mitoitustyökalu pintamagneettikoneelle, jonka staattorissa on yksikerroskäämitys.
Tämän avulla pyrittiin selvittämään, miten eri suunnitteluparametrien valinta vaikuttaa koneen hyötysuhteeseen, tehokertoimeen, kokoon sekä kestomagneettimateriaalin määrään.
Erityisesti pyrittiin selvittämään, miten koneesta voitaisiin saada mahdollisimman kompakti.

Toteutettu mitoitustyökalu verifioitiin vertaamalla sen antamia tuloksia elementtimenetelmällä laskettuihin tuloksiin.
Esimerkkinä työkalua testattiin kuvitteellisen 22 kW teollisuuspumpun suunnittelemiseen.
Suunnitteluparametrien vaikutuksen selvittämiseksi työkalulla laskettiin joukko erilaisia mitoituksia valitulle koneelle.
Havaittiin, että koneesta saadaan kevyempi kasvattamalla napaparilukua, virran tiheyttä staattorikäämityksessä sekä magneettivuon tiheyttä staattorissa.
Tällöin haittapuolena oli hyötysuhteen huononeminen.
ED:2012-08-20
INSSI record number: 45055
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