Research Output 1997 2017

  • 885 Citations
  • 14 h-Index
  • 107 Conference contribution
  • 63 Article
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Article
2017
Torque control
Synchronous motors
Permanent magnets
Simulators
Finite element method

A research trend of electric machines with development of finite element analysis

Hijikata, H. & Akatsu, K. 2017 Jun 1 In : IEEJ Transactions on Electrical and Electronic Engineering. 12, p. S171-S176

Research output: Contribution to journalArticle

Electric machinery
Finite element method
Torque
Magnetic fields

Complex vector form PI control for harmonic current control of a PMSM

Okajima, Y. & Akatsu, K. 2017 In : IEEJ Transactions on Industry Applications. 137, 3, p. 238-245 8 p.

Research output: Contribution to journalArticle

Electric current control
Transient analysis
Controllers
Permanent magnets
Poles
Variable speed drives
Reluctance motors
Controllability
Pulse width modulation
Hysteresis

Electromagnetic Force Acquisition Distributed in Electric Motor to Reduce Vibration

Ito, T. & Akatsu, K. 2017 Mar 1 In : IEEE Transactions on Industry Applications. 53, 2, p. 1001-1008 8 p., 7723868

Research output: Contribution to journalArticle

Electric motors
Stators
Torque
Reluctance motors
Strain gages

Experimental studies of variable leakage flux type IPMSM

Hijikata, H., Akatsu, K. & Kato, T. 2017 In : IEEJ Transactions on Industry Applications. 137, 9, p. 737-743 7 p.

Research output: Contribution to journalArticle

Synchronous motors
Fluxes
Permanent magnets
Traction motors
Automobiles

Wide Speed Range Operation by Low-Voltage Inverter-Fed MATRIX Motor for Automobile Traction Motor

Hijikata, H., Sakai, Y., Akatsu, K., Miyama, Y., Arita, H. & Daikoku, A. 2017 Sep 11 (Accepted/In press) In : IEEE Transactions on Power Electronics.

Research output: Contribution to journalArticle

Traction motors
Automobiles
Electric potential
Torque
2016
6 Citations
Torque control
Electric current control
Simulators
Synchronous motors
Permanent magnets
Reluctance motors
Magnetic materials
Fluxes
Composite materials
4 Citations

MATRIX motor with individual control capability for iron loss suppression under flux weakening control

Hijikata, H., Akatsu, K., Miyama, Y., Arita, H. & Daikoku, A. 2016 In : IEEJ Journal of Industry Applications. 5, 2, p. 176-183 8 p.

Research output: Contribution to journalArticle

Iron
Fluxes
Synchronous motors
Permanent magnets
Stators

Variable Magnetization Machine in Electrified Vehicle Application

Fukushige, T., Kato, T., Akatsu, K. & Lorenz, R. D. 2016 Nov 1 In : Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 197, 3, p. 67-75 9 p.

Research output: Contribution to journalArticle

Magnetization
Rotors (windings)
Magnetic circuits
Electric vehicles
Stators
1 Citations

Vector control specialized for switched reluctance motor drives

Nakao, N. & Akatsu, K. 2016 Jan 1 In : Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi). 194, 2, p. 24-36 13 p.

Research output: Contribution to journalArticle

Reluctance motors
Torque
Torque control
Electric current control
Control theory
2015
14 Citations

Analysis and PCB design of class D inverter for wireless power transfer systems operating at 13.56 MHz

Trung, N. K., Ogata, T., Tanaka, S. & Akatsu, K. 2015 In : IEEJ Journal of Industry Applications. 4, 6, p. 703-713 11 p.

Research output: Contribution to journalArticle

Networks (circuits)
Inductance
1 Citations

Controlled voltage source vector control for switched reluctance motors using PWM method

Nakao, N. & Akatsu, K. 2015 Oct 1 In : IEEJ Transactions on Industry Applications. 135, 10, p. 999-1008 10 p.

Research output: Contribution to journalArticle

Variable speed drives
Reluctance motors
Controllability
Pulse width modulation
Hysteresis
7 Citations

Design Methodology for Variable Leakage Flux IPM for Automobile Traction Drives

Kato, T., Minowa, M., Hijikata, H., Akatsu, K. & Lorenz, R. D. 2015 Sep 1 In : IEEE Transactions on Industry Applications. 51, 5, p. 3811-3821 11 p., 7115116

Research output: Contribution to journalArticle

Automobiles
Fluxes
Permanent magnets
Energy utilization
Torque
17 Citations

Efficiency Contours and Loss Minimization Over a Driving Cycle of a Variable Flux-Intensifying Machine

Fukushige, T., Limsuwan, N., Kato, T., Akatsu, K. & Lorenz, R. D. 2015 Jul 1 In : IEEE Transactions on Industry Applications. 51, 4, p. 2984-2989 6 p., 07046393

Research output: Contribution to journalArticle

Magnets
Magnetization
Fluxes
Coercive force
Permanent magnets
2 Citations

Electric drive technologies contributing to low-fuel-comsumption vehicles

Mizutani, R., Tachibana, T., Morimoto, M., Akatsu, K. & Hoshi, N. 2015 Sep 1 In : IEEJ Transactions on Industry Applications. 135, 9, p. 884-891 8 p.

Research output: Contribution to journalArticle

Electric drives
Fuel economy
Internal combustion engines

Proposal and machine characteristics of a single-phase srm driven by commercial AC power supply

Aiso, K. & Akatsu, K. 2015 Nov 1 In : IEEJ Transactions on Industry Applications. 135, 11, p. 1091-1099 9 p.

Research output: Contribution to journalArticle

Reluctance motors
Switching circuits
Induction motors
Sensors
Experiments
1 Citations

Variable magnetization machine in electrified vehicle application

Fukushige, T., Kato, T., Akatsu, K. & Lorenz, R. D. 2015 Sep 1 In : IEEJ Transactions on Industry Applications. 135, 9, p. 922-928 7 p.

Research output: Contribution to journalArticle

Magnetization
Rotors (windings)
Magnetic circuits
Electric vehicles
Stators
2014
61 Citations

Design and evaluation of a variable-flux flux-intensifying interior permanent-magnet machine

Limsuwan, N., Kato, T., Akatsu, K. & Lorenz, R. D. 2014 In : IEEE Transactions on Industry Applications. 50, 2, p. 1015-1024 10 p., 6560407

Research output: Contribution to journalArticle

Permanent magnets
Fluxes
Coercive force
Magnets
Magnetization
41 Citations

Rare earth reduction using a novel variable magnetomotive force flux-intensified IPM machine

Kato, T., Limsuwan, N., Yu, C. Y., Akatsu, K. & Lorenz, R. D. 2014 In : IEEE Transactions on Industry Applications. 50, 3, p. 1748-1756 9 p., 6607140

Research output: Contribution to journalArticle

Rare earths
Permanent magnets
Magnets
Fluxes
Coercive force
28 Citations

Suppressing pulsating torques: Torque ripple control for synchronous motors

Nakao, N. & Akatsu, K. 2014 Nov 1 In : IEEE Industry Applications Magazine. 20, 6, p. 33-44 12 p., 6891141

Research output: Contribution to journalArticle

Torque control
Synchronous motors
Torque
Analytical models
Reluctance motors
2 Citations

Vector control specialized for switched reluctance motor drives

Nakao, N. & Akatsu, K. 2014 In : IEEJ Transactions on Industry Applications. 134, 12, p. 1006-1015 10 p.

Research output: Contribution to journalArticle

Reluctance motors
Torque
Torque control
Electric current control
Control theory
2013
2 Citations

A study of dual winding method for compound magnetomotive force motor

Hijikata, H., Shigeta, T., Kariya, N., Akatsu, K. & Kato, T. 2013 In : IEEJ Transactions on Industry Applications. 133, 10, p. 986-994 9 p.

Research output: Contribution to journalArticle

Magnets
Poles
Electric potential
3 Citations

A study on improvement in permanent magnet synchronous motor with high permeability magnet

Miyamasu, M., Nakamura, Y., Akatsu, K. & Masuzawa, M. 2013 In : IEEJ Transactions on Industry Applications. 133, 9, p. 943-951 9 p.

Research output: Contribution to journalArticle

Synchronous motors
Permanent magnets
Magnets
Eddy currents
Torque
19 Citations

Basic properties of an axial-type switched reluctance motor

Arihara, H. & Akatsu, K. 2013 In : IEEE Transactions on Industry Applications. 49, 1, p. 59-65 7 p., 6361291

Research output: Contribution to journalArticle

Reluctance motors
Torque
Air
Inductance
Finite element method
Circuit simulation
Permanent magnets
Magnetic fields
Iron
Fluxes
2 Citations
AC motors
Brushless DC motors
Machine design
Electric potential
Synchronous motors
4 Citations
Synchronous motors
Permanent magnets
Power electronics
Electronic equipment
Torque
17 Citations

Secondary resistive losses with high-frequency injection-based self-sensing in IPM machines

Limsuwan, N., Kato, T., Yu, C. Y., Tamura, J., Reigosa, D. D., Akatsu, K. & Lorenz, R. D. 2013 In : IEEE Transactions on Industry Applications. 49, 4, p. 1499-1507 9 p., 6491469

Research output: Contribution to journalArticle

Permanent magnets
Magnets
Eddy currents
Iron
Fluxes
2012
13 Citations

Investigation of locked rotor test for estimation of magnet PWM carrier eddy current loss in synchronous machines

Yamazaki, K., Fukuoka, T., Akatsu, K., Nakao, N. & Ruderman, A. 2012 In : IEEE Transactions on Magnetics. 48, 11, p. 3327-3330 4 p., 6333012

Research output: Contribution to journalArticle

Eddy currents
Pulse width modulation
Magnets
Rotors
Finite element method

Special Issue on Power Electronics

Itoh, J. & Akatsu, K. 2012 In : IEEJ Transactions on Industry Applications. 132, 10, p. 13 1 p.

Research output: Contribution to journalArticle

Power electronics
2011
7 Citations
Circuit simulation
Permanent magnets
Magnetic fields
Iron
Fluxes
2 Citations

Design theory of a variable characteristic motor using compound magnetomotive forces

Kato, T., Akatsu, K., Shigeta, T., Nakano, M., Tsukamoto, M. & Arimitsu, M. 2011 In : IEEJ Transactions on Industry Applications. 131, 8, p. 1049-1058 10 p.

Research output: Contribution to journalArticle

Electric current control
Synchronous motors
Permanent magnets
Magnets
Poles
6 Citations
Torque control
Synchronous motors
Permanent magnets
Feedforward control
Torque

Principle of a Variable Characteristics Motor with Compound Magnetmotive Forces

Kato, T., K, K., Akatsu, K., Shigeta, T., M.Nakano, M. N., Tsukamoto, M. & Arimitsu, M. 2010 Jun 23 In : The 2010 International Power Electronics Conference –ECCE ASIA- (IPEC2010).

Research output: Contribution to journalArticle

Self-Sending Comparison of Fractional Slot Pitch Winding Versus Distributed Winding for FW- and FI-IPMSMs Based on Carrier Signal Injection at Very Low Speed

Reigosa, D., Akatsu, K., Limusuwan, N., Shibukawa, Y. & Lorenz, R. D. 2010 Nov 1 In : IEEE Transaction on Industry Applications. 46, p. 2467-2474

Research output: Contribution to journalArticle

12 Citations

Self-sensing comparison of fractional slot pitch winding versus distributed winding for FW- and FI-IPMSMs based on carrier signal injection at very low speed

Reigosa, D. D., Akatsu, K., Limsuwan, N., Shibukawa, Y. & Lorenz, R. D. 2010 Nov In : IEEE Transactions on Industry Applications. 46, 6, p. 2467-2474 8 p., 5565474

Research output: Contribution to journalArticle

Stators
Permanent magnets
Rotors
Fluxes
2009
13 Citations

Comparing coupled analysis with experimental results for an interior PM machine

Akatsu, K. & Lorenz, R. D. 2009 In : IEEE Transactions on Industry Applications. 45, 1, p. 178-185 8 p.

Research output: Contribution to journalArticle

Torque
Finite element method
Circuit simulation
Electric potential
Pulse width modulation

Position and speed estimation methods of SPMSMs using a hall effect sensor

Akatsu, K., Mitomo, N. & Wakui, S. 2008 In : IEEJ Transactions on Industry Applications. 128, 2

Research output: Contribution to journalArticle

Hall effect
Sensors
Speed control
Electric potential
Experiments
2007
6 Citations
Inductance
Torque
Poles
Winding machines
Finite element method
2006
2 Citations
Fluxes
Torque
Rotors
Inductance
Stators

Comparing Coupling Analysis with Experimental Results for an Interior PM Machine

K.Akatsu, K. A., Lorenz, R. D. & Akatsu, K. 2006 Nov 1 In : International Conference on Electric Machines and Systems 2006. p. LS2A-1

Research output: Contribution to journalArticle

34 Citations

Design and control of a field intensified interior permanent magnet synchronous machine

Akatsu, K., Arimitsu, M. & Wakui, S. 2006 In : IEEJ Transactions on Industry Applications. 126, 7, p. 827-834 8 p.

Research output: Contribution to journalArticle

Permanent magnets
Magnets
Torque
Demagnetization
Finite element method

Design and Control of a Field Intensify Interior Permanent Magnet Synchronous Machine

Akatsu, K., Arimitsu, M. & Wakui, S. 2006 Jul 1 In : IEEJ Trans. on IAS. 126, p. 827-834

Research output: Contribution to journalArticle

Torque and Power Density Comparison between Fractional-slot Concentrated Winding SPMSMs

K.Akatsu, K. A., S.Wakui, S. W. & Akatsu, K. 2006 Nov 1 In : International Conference on Electric Machines and Systems 2006. p. DS3F1-11

Research output: Contribution to journalArticle

2005

Field intensify controlled IPMSM with normal saliency

K.Akatsu, K. A., S.Wakui, S. W., M.Arimitsu, M. A. & Akatsu, K. 2005 Apr 1 In : Conference Record of IPEC 2005. p. S35-1

Research output: Contribution to journalArticle