Reduction of Cogging Torque in Interior-Magnet Brushless Machines

Z. Q. Zhu; S. Ruangsinchaiwanich; N. Schofield; D. Howe

doi:10.1109/TMAG.2003.816733

Reduction of Cogging Torque in Interior-Magnet Brushless Machines

Z. Q. Zhu, S. Ruangsinchaiwanich, N. Schofield, D. Howe

Research output: Contribution to journal › Conference article › peer-review

106 Citations (Scopus)

Abstract

An investigation into the cogging torque in a four-pole interior-magnet brushless machines having either a six-slot stator and a short-pitched nonoverlapping winding or a 12-slot stator and a full-pitched overlapping winding is described. It is shown by finite-element analyses and measurements that, by appropriately defining the pole-arc to pole-pitch ratio, the optimal pole-arc to pole-pitch ratio for minimum cogging torque, which has been derived for surface-mounted magnet machines, is equally applicable to interior-magnet machines.

Original language	English
Article number	1233357
Pages (from-to)	3238-3240
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	39
Issue number	5 II
DOIs	https://doi.org/10.1109/TMAG.2003.816733
Publication status	Published - 23 Sep 2003
Externally published	Yes
Event	International Magnetics Conference - Boston Marriott Copley Place, Boston, United States Duration: 30 Mar 2003 → 3 Apr 2003

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title = "Reduction of Cogging Torque in Interior-Magnet Brushless Machines",

abstract = "An investigation into the cogging torque in a four-pole interior-magnet brushless machines having either a six-slot stator and a short-pitched nonoverlapping winding or a 12-slot stator and a full-pitched overlapping winding is described. It is shown by finite-element analyses and measurements that, by appropriately defining the pole-arc to pole-pitch ratio, the optimal pole-arc to pole-pitch ratio for minimum cogging torque, which has been derived for surface-mounted magnet machines, is equally applicable to interior-magnet machines.",

keywords = "Brushless machines, Cogging torque, Permanent magnets, Permanent-magnet machines",

author = "Zhu, {Z. Q.} and S. Ruangsinchaiwanich and N. Schofield and D. Howe",

year = "2003",

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doi = "10.1109/TMAG.2003.816733",

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T1 - Reduction of Cogging Torque in Interior-Magnet Brushless Machines

AU - Zhu, Z. Q.

AU - Ruangsinchaiwanich, S.

AU - Schofield, N.

AU - Howe, D.

PY - 2003/9/23

Y1 - 2003/9/23

N2 - An investigation into the cogging torque in a four-pole interior-magnet brushless machines having either a six-slot stator and a short-pitched nonoverlapping winding or a 12-slot stator and a full-pitched overlapping winding is described. It is shown by finite-element analyses and measurements that, by appropriately defining the pole-arc to pole-pitch ratio, the optimal pole-arc to pole-pitch ratio for minimum cogging torque, which has been derived for surface-mounted magnet machines, is equally applicable to interior-magnet machines.

AB - An investigation into the cogging torque in a four-pole interior-magnet brushless machines having either a six-slot stator and a short-pitched nonoverlapping winding or a 12-slot stator and a full-pitched overlapping winding is described. It is shown by finite-element analyses and measurements that, by appropriately defining the pole-arc to pole-pitch ratio, the optimal pole-arc to pole-pitch ratio for minimum cogging torque, which has been derived for surface-mounted magnet machines, is equally applicable to interior-magnet machines.

KW - Brushless machines

KW - Cogging torque

KW - Permanent magnets

KW - Permanent-magnet machines

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U2 - 10.1109/TMAG.2003.816733

DO - 10.1109/TMAG.2003.816733

M3 - Conference article

AN - SCOPUS:0141918523

VL - 39

SP - 3238

EP - 3240

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

SN - 0018-9464

IS - 5 II

M1 - 1233357

T2 - International Magnetics Conference

Y2 - 30 March 2003 through 3 April 2003

ER -

Reduction of Cogging Torque in Interior-Magnet Brushless Machines

Abstract

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