Effect of Pole and Slot Combination on the AC Joule Loss of Outer-Rotor Permanent Magnet Synchronous Motors Using a High Fill Factor Machined Coil
This paper proposes a design guideline for selecting the pole and slot combination of an outer-rotor permanent magnet synchronous motor (PMSM) using a maximum slot occupation (MSO) coil. Because the MSO coil has a large conductor area, the AC Joule loss in the conductors may be increased at high fre...
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doaj-c7b37127eb6f4681ae0dbc409e9709c52021-06-01T01:04:49ZengMDPI AGEnergies1996-10732021-05-01143073307310.3390/en14113073Effect of Pole and Slot Combination on the AC Joule Loss of Outer-Rotor Permanent Magnet Synchronous Motors Using a High Fill Factor Machined CoilSoo-Hwan Park0Eui-Chun Lee1Gi-Ju Lee2Soon-O. Kwon3Myung-Seop Lim4Department of Automotive Engineering, Hanyang University, Seoul 04763, KoreaDepartment of Automotive Engineering, Hanyang University, Seoul 04763, KoreaSafety System R&D Group, Korea Institute of Industrial Technology, Daegu 42994, KoreaSafety System R&D Group, Korea Institute of Industrial Technology, Daegu 42994, KoreaDepartment of Automotive Engineering, Hanyang University, Seoul 04763, KoreaThis paper proposes a design guideline for selecting the pole and slot combination of an outer-rotor permanent magnet synchronous motor (PMSM) using a maximum slot occupation (MSO) coil. Because the MSO coil has a large conductor area, the AC Joule loss in the conductors may be increased at high frequencies. To ensure high-efficiency for the PMSM, it is necessary to reduce the loss. Thus, it is important to select the pole- and slot- combination that has the minimum AC Joule loss. The loss is caused by skin/proximity effects and variations in the slot leakage flux. The skin effect is due to the armature winding and the variation in the slot leakage flux is due to the field flux. A method for separating the AC Joule loss due to each component using the frozen permeability method is proposed. Based on the proposed method, the effect of each cause on the loss at various pole- and slot- combinations is analyzed in this study.https://www.mdpi.com/1996-1073/14/11/3073AC Joule lossfrozen permeabilityMSO coilouter-rotorpole and slot combination |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Soo-Hwan Park Eui-Chun Lee Gi-Ju Lee Soon-O. Kwon Myung-Seop Lim |
spellingShingle |
Soo-Hwan Park Eui-Chun Lee Gi-Ju Lee Soon-O. Kwon Myung-Seop Lim Effect of Pole and Slot Combination on the AC Joule Loss of Outer-Rotor Permanent Magnet Synchronous Motors Using a High Fill Factor Machined Coil Energies AC Joule loss frozen permeability MSO coil outer-rotor pole and slot combination |
author_facet |
Soo-Hwan Park Eui-Chun Lee Gi-Ju Lee Soon-O. Kwon Myung-Seop Lim |
author_sort |
Soo-Hwan Park |
title |
Effect of Pole and Slot Combination on the AC Joule Loss of Outer-Rotor Permanent Magnet Synchronous Motors Using a High Fill Factor Machined Coil |
title_short |
Effect of Pole and Slot Combination on the AC Joule Loss of Outer-Rotor Permanent Magnet Synchronous Motors Using a High Fill Factor Machined Coil |
title_full |
Effect of Pole and Slot Combination on the AC Joule Loss of Outer-Rotor Permanent Magnet Synchronous Motors Using a High Fill Factor Machined Coil |
title_fullStr |
Effect of Pole and Slot Combination on the AC Joule Loss of Outer-Rotor Permanent Magnet Synchronous Motors Using a High Fill Factor Machined Coil |
title_full_unstemmed |
Effect of Pole and Slot Combination on the AC Joule Loss of Outer-Rotor Permanent Magnet Synchronous Motors Using a High Fill Factor Machined Coil |
title_sort |
effect of pole and slot combination on the ac joule loss of outer-rotor permanent magnet synchronous motors using a high fill factor machined coil |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2021-05-01 |
description |
This paper proposes a design guideline for selecting the pole and slot combination of an outer-rotor permanent magnet synchronous motor (PMSM) using a maximum slot occupation (MSO) coil. Because the MSO coil has a large conductor area, the AC Joule loss in the conductors may be increased at high frequencies. To ensure high-efficiency for the PMSM, it is necessary to reduce the loss. Thus, it is important to select the pole- and slot- combination that has the minimum AC Joule loss. The loss is caused by skin/proximity effects and variations in the slot leakage flux. The skin effect is due to the armature winding and the variation in the slot leakage flux is due to the field flux. A method for separating the AC Joule loss due to each component using the frozen permeability method is proposed. Based on the proposed method, the effect of each cause on the loss at various pole- and slot- combinations is analyzed in this study. |
topic |
AC Joule loss frozen permeability MSO coil outer-rotor pole and slot combination |
url |
https://www.mdpi.com/1996-1073/14/11/3073 |
work_keys_str_mv |
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