Hysteresis Losses in Sintered NdFeB Permanent Magnets in Rotating Electrical Machines


Autoria(s): Pyrhönen, Juha; Ruoho, Sami; Nerg, Janne; Paju, Martti; Tuominen, Sampo; Kankaanpää, Harri; Stern, Raivo; Boglietti, Aldo; Uzhegov, Nikita
Data(s)

13/04/2015

13/04/2015

2015

Resumo

Permanent magnet materials are nowadays widely used in the electrical machine manufacturing industry. Eddy current loss models of permanent magnets used in electrical machines are frequently discussed in research papers. In magnetic steel materials we have, in addition to eddy current losses, hysteresis losses when AC or a rotating flux travels through the material. Should a similar phenomenon also be taken into account in calculating the losses of permanent magnets? Actually, every now and then authors seem to assume that some significant hysteresis losses are present in rotating machine PMs. This paper studies the mechanisms of possible hysteresis losses in PMs and their role in PMs when used in rotating electrical machines.

Identificador

Juha Pyrhönen, Sami Ruoho, Janne Nerg, Martti Paju, Sampo Tuominen, Harri Kankaanpää, Raivo Stern, Aldo Boglietti, Nikita Uzhegov (2015) Hysteresis Losses in Sintered NdFeB Permanent Magnets in Rotating Electrical Machines. IEEE Transactions on Industrial Electronics 01/2015; 62(2):857-865. DOI:10.1109/TIE.2014.2354597

0278-0046

http://www.doria.fi/handle/10024/104240

URN:NBN:fi-fe201504132543

Idioma(s)

en

Relação

IEEE Transactions on Industrial Electronics

Direitos

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Palavras-Chave #Permanent magnet #permanent magnet material #permanent magnet losses #hysteresis #hysteresis in permanent magnets