NAGAI SAKAHISA 永井栄寿

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Nagai Sakahisa 永井栄寿

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Researcher Number	10898159
Other IDs
Affiliation (Current)	2026: 東京大学, 大学院新領域創成科学研究科, 准教授
Affiliation (based on the past Project Information) *help	2023 – 2025: 東京大学, 大学院新領域創成科学研究科, 特任講師 2022: 東京大学, 大学院新領域創成科学研究科, 特任助教
Review Section/Research Field	Principal Investigator Basic Section 21010:Power engineering-related Except Principal Investigator Medium-sized Section 21:Electrical and electronic engineering and related fields
Keywords	Principal Investigator 高速スイッチング / GaNインバータ / 漏洩電磁界 / ワイヤレス給電 Except Principal Investigator ワイヤレス給電 / モーションコントロール / ドローン / Tilt wing / 飛行中ワイヤレス給電 / 姿勢制御 / 電動フライングモビリティ

Innovative Developments of Flying Mobility Pioneered by Wireless Power Transfer and Motion Control Technologies
- Principal Investigator
  
  藤本博志
- Project Period (FY)
  2023 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 21:Electrical and electronic engineering and related fields
- Research Institution
  The University of Tokyo
Study on Leakage Electromagnetic Field Reduction of Wireless Power Transfer for Electric Vehicles Using GaN-InverterPrincipal Investigator
- Principal Investigator
  
  Nagai Sakahisa
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 21010:Power engineering-related
- Research Institution
  The University of Tokyo

All 2025 2024 2023 2022

All Journal Article Presentation Book

[Book] ワイヤレス電力伝送と5G通信の連携・融合に向けた干渉対策と今後の展望（第14章）2023
- Author(s)
  橋本修，永井栄寿，他
- Total Pages
  289
- Publisher
  シーエムシー出版
- ISBN
  9784781317311
- Data Source
  KAKENHI-PROJECT-22K14234
[Journal Article] Optimizing the Number of Parallel SiC MOSFET Chips in a Wireless Power Transfer Inverter With Pulse Width Control2025
- Author(s)
  Yanagi Tatsuya、Nakahara Ken、Nagai Sakahisa、Shimizu Osamu、Fujimoto Hiroshi
- Journal Title
  
  IEEE Transactions on Industrial Electronics
  
  Volume: - Issue: 9 Pages: 1-10
- DOI
  10.1109/tie.2025.3531459
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23H00175
[Journal Article] Wind Tunnel Verification of Velocity Control in Wing Coordinate System using Acceleration-Based Disturbance Observer for Tilt-Wing eVTOL2025
- Author(s)
  Katagiri Takuma、Yokota Kentaro、Fujimoto Kota、Nagai Sakahisa、Fujimoto Hiroshi
- Journal Title
  
  IEEJ Journal of Industry Applications
  
  Volume: 14 Issue: 2 Pages: 188-195
- DOI
  10.1541/ieejjia.24005235
- ISSN
  2187-1094, 2187-1108
- Year and Date
  2025-03-01
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23H00175
[Journal Article] Effect of the Conduction Resistance of SiC MOSFET on the Harmonics of Inverter Voltage in Wireless Power-Transfer Systems for Electric Vehicles2024
- Author(s)
  Yanagi Tatsuya、Nakahara Ken、Sumiya Hayato、Nagai Sakahisa、Shimizu Osamu、Fujimoto Hiroshi
- Journal Title
  
  IEEE Access
  
  Volume: 12 Pages: 86886-86895
- DOI
  10.1109/access.2024.3416810
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23H00175
[Journal Article] Mode-Switching Algorithm to Improve Variable-Pitch-Propeller Thrust Generation for Drones Under Motor Current Limitation2023
- Author(s)
  Naoki Yuto、Nagai Sakahisa、Fujimoto Hiroshi
- Journal Title
  
  IEEE/ASME Transactions on Mechatronics
  
  Volume: 28 Issue: 4 Pages: 2003-2011
- DOI
  10.1109/tmech.2023.3275618
- Data Source
  KAKENHI-PROJECT-23H00175
[Journal Article] Reduction of Magnetic Field by Low-order Harmonics in Magnetic Resonant Wireless Power Transfer System Using High-frequency Switching2022
- Author(s)
  Nagai Sakahisa、Fujita Toshiyuki、Sumiya Hayato、Shimizu Osamu、Fujimoto Hiroshi
- Journal Title
  
  IEEJ Transactions on Industry Applications
  
  Volume: 142 Issue: 5 Pages: 385-392
- DOI
  10.1541/ieejias.142.385
- ISSN
  0913-6339, 1348-8163
- Year and Date
  2022-05-01
- Language
  Japanese
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K14234
[Presentation] Basic Study on Short Distance Landing Control with Reverse Thrust of Variable Pitch Propeller for Fixed Wing Electric Aircraft2025
- Author(s)
  Pinzhe Feng, Yuto Naoki, Kota Fujimoto, Kentaro Yokota, Sakahisa Nagai, Hiroshi Fujimoto
- Organizer
  IEEE International Conference on Mechatronics (ICM2025)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] Experimental Verification of Thrust-Vibration-Suppression for Multirotor Propeller based on Wind Direction Estimation in Rotational Plane2025
- Author(s)
  Yuto Naoki, Sakahisa Nagai, Hiroshi Fujimoto
- Organizer
  IFAC Joint Symposia on Mechatronics & Robotics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] Trajectory Tracking Control of Tilt-Wing eVTOL Using Aerodynamic Coupling Observer and Wing Angle Correction Method2025
- Author(s)
  Takuma Katagiri, Kota Fujimoto, Sakahisa Nagai, Hiroshi Fujimoto
- Organizer
  IEEE International Conference on Mechatronics (ICM2025)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] Thrust Force Vibration Suppression of Drone Rotor by Higher Harmonic Rotational Speed Control2024
- Author(s)
  Yuto Naoki, Sakahisa Nagai, Hiroshi Fujimoto
- Organizer
  The 27th IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM 2024)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] 6自由度ドローンにおける風外乱力推定2024
- Author(s)
  神谷万人, 永井栄寿, 藤本博志
- Organizer
  2024年電気学会メカトロニクス制御研究会「精密サーボシステムと制御技術」
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] 位置依存プロペラ反トルク高調波を用いた回転平面内風向推定の横風状況下推力振動の抑制への活用2024
- Author(s)
  猶木雄登, 永井栄寿, 藤本博志
- Organizer
  2024年電気学会メカトロニクス制御研究会「精密サーボシステムと制御技術」
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] Two-pulse Width Modulation for Voltage Regulation and Reduction of Electromagnetic Field Radiated by Third Harmonic Current in Wireless Power Transfer System2024
- Author(s)
  Sakahisa Nagai, Toshiyuki Fujita, Osamu Shimizu, Hiroshi Fujimoto
- Organizer
  The 50th Annual conference of the IEEE Industrial Electronics Society, IECON2024
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K14234
[Presentation] Basic Study on Velocity Control in Wing Coordinate System Using Acceleration-based Disturbance Observer for Tilt-wing eVTOL2024
- Author(s)
  Takuma Katagiri, Kentaro Yokota, Kota Fujimoto, Sakahisa Nagai, Hiroshi Fujimoto
- Organizer
  The 10th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization (SAMCON2024)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] 重量制約を考慮したドローンの飛行中磁界共振型無線電力伝送のための受電側システム設計に関する基礎検討2024
- Author(s)
  藤本　浩太, 佐藤　悠介, 永井　栄寿, 藤本　博志
- Organizer
  電気学会電力技術/電力系統技術/半導体電力変換合同研究会
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] ドローンへの飛行中給電のための地面効果領域におけるモータ電流を用いた姿勢推定のベンチ検証2024
- Author(s)
  藤本浩太, 永井栄寿, 阮平明, 藤本博志
- Organizer
  2024年電気学会産業応用部門大会
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] Sensorless Drone Detection for In-Flight Inductive Power Transfer Using Transmitter-Side Voltage Pulses2024
- Author(s)
  Sakahisa Nagai, Yusuke Satoh, Kota Fujimoto, Hiroshi Fujimoto
- Organizer
  The IEEE Wireless Power Technology Conference and Expo
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] Basic Study on Vortex Ring State Detection of Multi-rotor UAV Using Motor Counter Torque Observer2024
- Author(s)
  Manto Kamiya, Sakahisa Nagai, Hiroshi Fujimoto
- Organizer
  IECON 2024 50th Annual Conference of the IEEE Industrial Electronics Society
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] Test Bench Study on Attitude Estimation in Ground Effect Region Based on Motor Current for In-Flight Inductive Power Transfer of Drones2023
- Author(s)
  Kota Fujimoto, Sakahisa Nagai, Binh-Minh Nguyen, Hiroshi Fujimoto
- Organizer
  The 49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] Basic Study on Received Power Control of In-Flight Inductive Power Transfer for Drones by Active Rectifier Switching and Altitude Regulation2023
- Author(s)
  Yusuke Sato, Kota Fujimoto, Ryo Matsumoto, Binh-Minh Nguyen, Sakahisa Nagai, Hiroshi Fujimoto
- Organizer
  The 49th Annual Conference of the IEEE Industrial Electronics Society (IECON 2023)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H00175
[Presentation] Wind Vector Estimation Considering Difference of Propeller Model Characteristics for Fully Actuated Drone2023
- Author(s)
  Manto Kamiya, Sakahisa Nagai, Hiroshi Fujimoto
- Organizer
  The 26th IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM 2023)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H00175

1. 藤本博志 (20313033)

# of Collaborated Projects: 1 results

# of Collaborated Products: 17 results
2. 鈴木宏二郎 (10226508)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

NAGAI SAKAHISA 永井 栄寿

Nagai Sakahisa 永井 栄寿

Research Projects

Research Products

Co-Researchers

Innovative Developments of Flying Mobility Pioneered by Wireless Power Transfer and Motion Control Technologies

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Study on Leakage Electromagnetic Field Reduction of Wireless Power Transfer for Electric Vehicles Using GaN-InverterPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Book] ワイヤレス電力伝送と5G通信の連携・融合に向けた干渉対策と今後の展望（第14章）2023

Author(s)

Total Pages

Publisher

ISBN

Data Source

[Journal Article] Optimizing the Number of Parallel SiC MOSFET Chips in a Wireless Power Transfer Inverter With Pulse Width Control2025

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Wind Tunnel Verification of Velocity Control in Wing Coordinate System using Acceleration-Based Disturbance Observer for Tilt-Wing eVTOL2025

Author(s)

Journal Title

DOI

ISSN

Year and Date

Language

Data Source

[Journal Article] Effect of the Conduction Resistance of SiC MOSFET on the Harmonics of Inverter Voltage in Wireless Power-Transfer Systems for Electric Vehicles2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Mode-Switching Algorithm to Improve Variable-Pitch-Propeller Thrust Generation for Drones Under Motor Current Limitation2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Reduction of Magnetic Field by Low-order Harmonics in Magnetic Resonant Wireless Power Transfer System Using High-frequency Switching2022

Author(s)

Journal Title

DOI

ISSN

Year and Date

Language

Data Source

[Presentation] Basic Study on Short Distance Landing Control with Reverse Thrust of Variable Pitch Propeller for Fixed Wing Electric Aircraft2025

Author(s)

Organizer

Data Source

[Presentation] Experimental Verification of Thrust-Vibration-Suppression for Multirotor Propeller based on Wind Direction Estimation in Rotational Plane2025

Author(s)

Organizer

Data Source

[Presentation] Trajectory Tracking Control of Tilt-Wing eVTOL Using Aerodynamic Coupling Observer and Wing Angle Correction Method2025

Author(s)

Organizer

Data Source

[Presentation] Thrust Force Vibration Suppression of Drone Rotor by Higher Harmonic Rotational Speed Control2024

Author(s)

Organizer

Data Source

[Presentation] 6自由度ドローンにおける風外乱力推定2024

Author(s)

Organizer

Data Source

[Presentation] 位置依存プロペラ反トルク高調波を用いた回転平面内風向推定の横風状況下推力振動の抑制への活用2024

Author(s)

Organizer

Data Source

[Presentation] Two-pulse Width Modulation for Voltage Regulation and Reduction of Electromagnetic Field Radiated by Third Harmonic Current in Wireless Power Transfer System2024

Author(s)

NAGAI SAKAHISA 永井栄寿

Nagai Sakahisa 永井栄寿

[Presentation] 重量制約を考慮したドローンの飛行中磁界共振型無線電力伝送のための受電側システム設計に関する基礎検討2024