3kW급 풍력발전기용 페라이트 스포크 회전자 형상 특성비교

Most of the generators and electric motors developed in recent years are synchronous machines using permanent magnets of rare earth. As the name suggests, rare earth permanent magnets are expensive because they have a small amount distributed on the earth. In addition, the price fluctuation is large...

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Bibliographic Details
Published in전기학회 논문지 P권, 69(2) Vol. 69P; no. 2; pp. 92 - 98
Main Authors 김수용(Su Yong Kim), 이주(Ju Lee)
Format Journal Article
LanguageKorean
Published 대한전기학회 01.06.2020
Subjects
전기공학
rotor
generator
ferrite
spoke
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ISSN1229-800X
2586-7792
DOI10.5370/KIEEP.2020.69.2.92

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Summary:Most of the generators and electric motors developed in recent years are synchronous machines using permanent magnets of rare earth. As the name suggests, rare earth permanent magnets are expensive because they have a small amount distributed on the earth. In addition, the price fluctuation is large because it is concentrated and mined in a specific region. Therefore, in recent years, research has been actively conducted on developing a generator using a low cost ferrite permanent magnet for stable supply and reduction of the price of the generator. Ferrite magnet has a low magnetic flux density compared to a rare earth permanent magnet, so a large amount of permanent magnet must be used. In particular, the generator rotor is made in the form of a spoke to insert a large amount of permanent magnets. There are three typical spoke type types. This paper compare three types of characteristics at the same size and the same output. KCI Citation Count: 0
ISSN:1229-800X
2586-7792
DOI:10.5370/KIEEP.2020.69.2.92