Analytical and FEM approach to reduce the cogging torque in in-wheel motors

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Analytical and FEM approach to reduce the cogging torque in in-wheel motors

Gorazd Gotovac [et al.] - Nama Orang;

In-wheel direct drive motors are placed inside drive wheels of electric vehicles and have to deliver large torque without any mechanical gear. Most often these machines are of synchronous type with permanent magnets and large pole-pair number. As a consequence of high peak torque, both cogging torque and torque ripple are increased if no measures are taken to decrease them. The vibrations due to cogging torque and torque ripple result in noise and reduced motor durability. In this paper, analytical equations and finite element method are derived, developed and used in order to analyse the dependence of cogging torque on magnet shape and size.Anovel magnet shape is found that eliminates cogging torque without reducing the motor torque constant
or increasing magnet size. The shape is applicable to any surface mounted permanent magnet motor with high number of pole pairs.

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Judul Seri: ELECTRICAL ENGINEERING
No. Panggil: -
Penerbit: Berlin : Springer-Verlag Berlin Heidelberg., 2015
Deskripsi Fisik: Electr Eng (2015) 97:269–275
Bahasa: English
ISBN/ISSN: DOI 10.1007/s00202-0
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: (2015) 97:269–275
Subjek: ELECTRICAL ENGINEERING
Info Detail Spesifik: -
Pernyataan Tanggungjawab: deliza

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FULLTEXT: Analytical and FEM approach to reduce the cogging torque in in-wheel motors

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