Development of PM Transverse Flux Motors With Soft Magnetic Composite Cores

Compared with the conventional fixed speed drive, a major factor that handicaps the wide acceptance of variable speed drive with high efficiency permanent magnet (PM) motors is its high cost. This paper presents an effort to reduce the material and manufacturing costs of PM motors by using the soft...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2011-10, Vol.47 (10), p.4376-4383
Main Authors: Zhu, Jian Guo, Guo, You Guang, Lin, Zhi Wei, Li, Yong Jian, Huang, Yun Kai
Format: Article
Language:English
Subjects:
Coils
Core loss
Cross-disciplinary physics: materials science
rheology
Electric machines
Exact sciences and technology
Magnetic cores
magnetic properties
Materials science
Other topics in materials science
Permanent magnet motors
Physics
Soft magnetic materials
Steel
Torque
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Summary:Compared with the conventional fixed speed drive, a major factor that handicaps the wide acceptance of variable speed drive with high efficiency permanent magnet (PM) motors is its high cost. This paper presents an effort to reduce the material and manufacturing costs of PM motors by using the soft magnetic composite (SMC), and the highly matured powder metallurgic technology. Because the SMC's magnetic properties are quite different from that of the traditional silicon steel sheets, special efforts have been made on measurement and modelling of vectorial magnetic properties, electrical machine topologies, and drive schemes in order to make the best use of the material. Various PM SMC motors of transverse flux topologies have been designed, fabricated, and tested. The detailed results are presented and discussed.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2011.2157320