J-GLOBAL         Last updated: Jul 2, 2019 at 02:42
Gifu University
Faculty of Engineering
Master of Engineering(Gifu University)

Research Areas


Academic & Professional Experience

Research Associate, Gifu University Faculty of Engineering, Department of Human and Information Systems
- Research Associate, Faculty of Engineering,
Gifu University


Graduate School, Division of Engineering, Gifu University
Faculty of Engineering, Gifu University

Published Papers

New Series Resonant DC Link Inverter For Electric Vehicle Drives
Murai Yoshihiro(Gifu University),Ishikawa Hiroki(Gifu University)
米国電気電子学会産業応用部門大会論文集   1 443-447   Oct 1994
Ishikawa Hiroki(Gifu University),Murai Yoshihiro(Gifu University)
1 319-324   Aug 1997
Ishikawa Hiroki(Gifu University),Murai Yoshihiro(Gifu University)
1 436-442   May 1998
新しい直列共振形DCリンクAC/AC PWMコンバータの出力特性
Ishikawa Hiroki(Gifu University),Murai Yoshihiro(Gifu University)
米国電気電子学会産業応用部門大会   3 2025-2030   Oct 1999


H. Ishikawa, Y. Murai
PESC Record - IEEE Annual Power Electronics Specialists Conference   Vol. 1, pp. 436-442(1) 436-442
This paper proposes a new series resonant DC link PWM inverter. The proposed inverter can have smaller inductance than the conventional series resonant inverter, and be also applied as soft-switched AC/AC or AC/DC converter easily. The output cont...
H. Naitoh, H. Ishikawa
SPEEDAM 2010 - International Symposium on Power Electronics, Electrical Drives, Automation and Motion   1270-1275
Switched reluctance motors (SRMs) have some mechanically structural and electrical advantages. They also have disadvantages not only related to noise but also to nonlinearity in electromechanical responses. Unlike, for example, dc motors, the resp...
Daiki Tokushima, Yukihiko Tanizawa, Hiroki Ishikawa, Haruo Naitoh
IECON Proceedings (Industrial Electronics Conference)   pp.1320-1325 1320-1325
High-performance as well as user-friendly circuit simulators are powerful aids for power electronics engineers. This paper presents a new circuit analysis and design simulator named TAP-T (Transient Analysis Program "TOKUZO") mainly for power elec...
Hiroki Ishikawa, Masahide Uraji, Haruo Naitoh
2013 IEEE 14th Workshop on Control and Modeling for Power Electronics, COMPEL 2013   
This paper proposes new current control to reduce eddy current loss (ECL) in switched reluctance motors (SRMs). Motor parameters and flux density of SRMs are pre-calculated by magnetostatic analysis. Eddy current causes the change of the flux dens...
Hiroki Ishikawa, Yoshihiro Murai
Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)   135 64-75
Generally speaking, the characteristics of induction motors (IM) are analyzed by means of the equivalent circuit with d-q transformation. Although this method is simple, the magnetic flux distributions in the stator and rotor are defined as sinuso...

Books etc

実用モータドライブ 制御系設計とその実際
Feb 2006   
Hiroki Ishikawa(Gifu University)
Mar 2006   
永久磁石モータドライブ制御システム ~制御法と実用設計~
Dec 2008   

Research Grants & Projects

Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(若手研究(B))
Project Year: 2009 - 2010    Investigator(s): Hiroki ISHIKAWA
One of the most attractive merits of switched reluctance machines (SRMs) is they have no permanent magnet. The SRMs, however, have some demerits, large torque ripples, and nonlinear characteristics, especially. The torque ripples results acoustic ...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 1997 - 1998    Investigator(s): 村井 由宏, Hiroki ISHIKAWA
The SR motors are rigorously investigated in these days, and there are various kinds of SR motor drive circuits. Electric vehicle is one of the most promised field of reluctance motor applications because of their simple and rigid structure, and t...
Soft-Switched Power Conversion System
Project Year: 1992   
High Performance Control for PWM Rectifier
Project Year: 2000   
Photovoltaic Generation System
Project Year: 2001