Takemoto, Masatsugu - OU Author List - OKAYAMA UNIVERSITY SCIENTIFIC ACHIEVEMENT REPOSITORY

Development of 50 krpm Ultra-High Speed IPMSM For EV Traction

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Author	Tsunata, Ren\| Kimura, Masaki\| Takemoto, Masatsugu\| Imai, Jun\|
Keywords	IPMSM winding traction motor 50 krpm eddy current loss
Note	EVTeC 2025, the 7th International Electric Vehicle Technology Conference\| Publication code: 20259018\|
Published Date	2025-05
Publisher	JSAE
Content Type	Conference Paper
language	English
OAI-PMH Set	岡山大学
Copyright Holders	© 2025 Society of Automotive Engineers of Japan, Inc.
File Version	publisher

Impact of SMC Property on Axial-Flux Permanent Magnet Machine in Traction Applications

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Author	Tsunata, Ren\| Takemoto, Masatsugu\| Imai, Jun\| Saito, Tatsuya\| Ueno, Tomoyuki\|
Keywords	Axial gap electrical machine axial flux electrical machine traction applications soft magnetic composite (SMC) WLTC cycle ferrite magnet carbon fiber rotor output power permanent magnet
Published Date	2025-04-01
Publication Title	IEEE Transactions on Industry Applications
Volume	volume61
Issue	issue5
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Start Page	6848
End Page	6860
ISSN	0093-9994
NCID	AA00667900
Content Type	Journal Article
language	English
OAI-PMH Set	岡山大学
Copyright Holders	© 2025 The Authors.
File Version	publisher
DOI	10.1109/tia.2025.3556657
Web of Science KeyUT	001554456300034
Related Url	isVersionOf https://doi.org/10.1109/tia.2025.3556657

Time-Efficient and Practical Design Method for Skewed PMSMs: Integrating Numerical Calculations With Limited 3-D-FEA

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Author	Tsunata, Ren\| Ichimura, Yu\| Takemoto, Masatsugu\| Imai, Jun\|
Keywords	Design method efficiency field weakening control interior permanent magnet synchronous motor (IPMSM) PMSMs skew torque ripple voltage harmonics
Published Date	2025-08-15
Publication Title	IEEE Open Journal of the Industrial Electronics Society
Volume	volume6
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Start Page	1370
End Page	1386
ISSN	2644-1284
Content Type	Journal Article
language	English
OAI-PMH Set	岡山大学
Copyright Holders	© 2025 The Authors.
File Version	publisher
DOI	10.1109/ojies.2025.3599390
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Skewing Technology for Permanent Magnet Synchronous Motors: A Comprehensive Review and Recent Trends

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Author	Tsunata, Ren\| Takemoto, Masatsugu\|
Keywords	Additive manufacturing (AM) axial leakage flux cogging torque electrical machine finite element analysis (FEA) induction motor (IM) interior permanent magnet synchronous motor (IPMSM) noise patents permanent magnet synchronous motor (PMSM) skew surface permanent magnet synchronous motor (SPMSM) torque ripple total harmonic distortion (THD) traction motor transportation vibration
Published Date	2024
Publication Title	IEEE Open Journal of the Industrial Electronics Society
Volume	volume5
Publisher	Institute of Electrical and Electronics Engineers
Start Page	1251
End Page	1273
ISSN	2644-1284
Content Type	Journal Article
language	English
OAI-PMH Set	岡山大学
Copyright Holders	© 2024 The Authors.
File Version	publisher
DOI	10.1109/OJIES.2024.3491295
Web of Science KeyUT	001370102500001
Related Url	isVersionOf https://doi.org/10.1109/OJIES.2024.3491295

Superior Efficiency Under PWM Harmonic Current in an Axial-Flux PM Machine for HEV/EV Traction: Comparison With a Radial-Flux PM Machine

FullText URL	fulltext.pdf
Author	Tsunata, Ren\| Takemoto, Masatsugu\| Imai, Jun\| Saito, Tatsuya\| Ueno, Tomoyuki\|
Keywords	Axial gap motor axial-flux machine carbon-fiber-reinforced plastic ferrite magnet iron loss PWM drive PWM harmonic current radial-flux machine soft magnetic composite switching frequency WLTC drive
Published Date	2024-09
Publication Title	IEEE Transactions on Industry Applications
Volume	volume60
Issue	issue5
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Start Page	6736
End Page	6751
ISSN	0093-9994
NCID	AA00667900
Content Type	Journal Article
language	English
OAI-PMH Set	岡山大学
Copyright Holders	© 2024 The Authors.
File Version	publisher
DOI	10.1109/tia.2024.3410241
Web of Science KeyUT	001319511900110
Related Url	isVersionOf https://doi.org/10.1109/tia.2024.3410241

Designing and Prototyping an Axial-Flux Machine Using Ferrite PM and Round Wire for Traction Applications: Comparison With a Radial-Flux Machine Using Nd-Fe-B PM and Rectangular Wire

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Author	Tsunata, Ren\| Izumiya, Kosuke\| Takemoto, Masatsugu\| Imai, Jun\| Saito, Tatsuya\| Ueno, Tomoyuki\|
Keywords	Axial gap motor axial-flux machine carbon fiber rotor carbon fiber-reinforced plastic city commuter ferrite magnet flat copper wire high circumferential speed radial-flux machine
Published Date	2024-03-01
Publication Title	IEEE Transactions on Industry Applications
Volume	volume60
Issue	issue3
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Start Page	3934
End Page	3949
ISSN	0093-9994
NCID	AA00667900
Content Type	Journal Article
language	English
OAI-PMH Set	岡山大学
Copyright Holders	© 2024 The Authors.
File Version	publisher
DOI	10.1109/tia.2024.3371959
Web of Science KeyUT	001230196400039
Related Url	isVersionOf https://doi.org/10.1109/tia.2024.3371959

A Proposal of an Axial-Flux Permanent-Magnet Machine Employing SMC Core With Tooth-Tips Constructed by One-Pressing Process: Improving Torque and Manufacturability

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Author	Tsunata, Ren\| Takemoto, Masatsugu\| Imai, Jun\| Saito, Tatsuya\| Ueno, Tomoyuki\|
Keywords	Pressing Stator cores Magnetic cores Torque Atmospheric modeling Presses Manufacturing Mass production Axial-flux permanent magnet machine soft magnetic composite (SMC) PMSM tooth-tips torque press process semi-closed slot structure axial gap motor mass production YASA motor shoe
Published Date	2023-10-04
Publication Title	IEEE Access
Volume	volume11
Publisher	Institute of Electrical and Electronics Engineers
Start Page	109435
End Page	109447
ISSN	2169-3536
Content Type	Journal Article
language	English
OAI-PMH Set	岡山大学
Copyright Holders	© 2023 The Authors.
File Version	publisher
DOI	10.1109/ACCESS.2023.3321829
Web of Science KeyUT	001086321100001
Related Url	isVersionOf https://doi.org/10.1109/ACCESS.2023.3321829

Comparison of Thermal Characteristics in Various Aspect Ratios for Radial-Flux and Axial-Flux Permanent Magnet Machines

FullText URL	fulltext20231025-01.pdf
Author	Tsunata, Ren\| Takemoto, Masatsugu\| Imai, Jun\| Saito, Tatsuya\| Ueno, Tomoyuki\|
Keywords	Aspect ratio axial-flux machine axial-gap motor cooling high efficiency mass production PMSM radial-flux machine soft magnetic composite thermal characteristic
Note	© 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.\| This fulltext file will be available in Mar. 2025.\|
Published Date	2023-03-13
Publication Title	IEEE Transactions on Industry Applications
Volume	volume59
Issue	issue3
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Start Page	3353
End Page	3367
ISSN	0093-9994
NCID	AA00667900
Content Type	Journal Article
language	English
OAI-PMH Set	岡山大学
Copyright Holders	© 2023 IEEE.
File Version	author
DOI	10.1109/tia.2023.3255845
Web of Science KeyUT	001061319100099
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Design and Analysis of Hybrid-Excitation Variable Flux Memory Motor for Traction Applications: Improving Output Power in High-Speed Area During Six-Step Operation Mode

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Author	Tsunata, Ren\| Yokomichi, Keito\| Takemoto, Masatsugu\| Imai, Jun\|
Keywords	Variable flux memory motor hybrid excitation motor traction applications EV HEV six-step operation one-pulse drive output power density
Published Date	2023-08-03
Publication Title	IEEE Access
Volume	volume11
Publisher	Institute of Electrical and Electronics Engineers
Start Page	82024
End Page	82036
ISSN	2169-3536
Content Type	Journal Article
language	English
OAI-PMH Set	岡山大学
File Version	publisher
DOI	10.1109/ACCESS.2023.3301809
Web of Science KeyUT	001047221300001
Related Url	isVersionOf https://doi.org/10.1109/ACCESS.2023.3301809

Reduction in Eddy Current Loss of Special Rectangular Windings in High-Torque IPMSM Used for Wind Generator

FullText URL	fulltext20230213-2.pdf
Author	Tao, Xianji\| Takemoto, Masatsugu\| Tsunata, Ren\| Ogasawara, Satoshi\|
Keywords	IPMSM IPMSG high-torque concentrated windings rectangular windings eddy current loss wind generator
Published Date	2023-01-11
Publication Title	IEEE Access
Volume	volume11
Publisher	IEEE
Start Page	4740
End Page	4751
ISSN	2169-3536
Content Type	Journal Article
language	English
OAI-PMH Set	岡山大学
File Version	publisher
DOI	10.1109/ACCESS.2023.3236105
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Novel Rotor Structure Employing Large Flux Barrier and Disproportional Airgap for Enhancing Efficiency of IPMSM Adopting Concentrated Winding Structure

FullText URL	fulltext20230213-1.pdf
Author	Tao, Xianji\| Takemoto, Masatsugu\| Tsunata, Ren\| Ogasawara, Satoshi\|
Keywords	Rotors Magnetic flux Atmospheric modeling Torque Iron Copper Costs IPMSM concentrated winding structure high efficiency flux barrier disproportional airgap
Published Date	2022-12-28
Publication Title	IEEE Access
Volume	volume11
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Start Page	2848
End Page	2862
ISSN	2169-3536
Content Type	Journal Article
language	English
OAI-PMH Set	岡山大学
File Version	publisher
DOI	10.1109/access.2022.3232843
Web of Science KeyUT	000912337500001
Related Url	isVersionOf https://doi.org/10.1109/access.2022.3232843