Research Interests 【 display / non-display 】

Research Interests 【 display / non-display 】

display all >>

Research Areas 【 display / non-display 】

Research Areas 【 display / non-display 】

Papers 【 display / non-display 】

Papers 【 display / non-display 】

• Impact of Rated Power of Power Converter in Energy Storage System on Fuel Consumption to Improve Efficiency of Onboard Generators

  Norichika Nagayama, Hiroyasu Kifune , 2025.09

  IEEJ Transactions on Electrical and Electronic Engineering

  DOI

• A method for estimating the fuel consumption characteristics of small boats sailing in medium to high-speed range

  Seiya Kondo, Hiroyasu Kifune , 2025.07

  Transactions on Maritime Science

  DOI

• Influence of propeller fouling on propulsion performance of an actual ship: a long-term analysis focusing on the power for keeping propeller’s rotation of a controllable pitch propeller

  Hiroaki Torii, Hiroyasu Kifune , 2023.10

  Journal of Marine Science and Technolog

  DOI

• Efficiency Estimation of Synchronous Generators for Marine Applications and Verification With Shop Trial Date and Real Ship Operation Data

  HIROYASU KIFUNE、MEHDI KARBALAYE、HIDETSUGU SASAKI , 2020.10

  IEEE Access

  DOI

• Improvement of Switching Characteristics for an Active Buffer Dual-Active-Bridge AC-DC Converter

  Malanda Sindisiwe, Komeda Shohei, Kifune Hiroyasu, Takuma Shunsuke, Ohnuma Yoshiya , 2024.06

  IEEJ Journal of Industry Applications

  DOI

display all >>

Books 【 display / non-display 】

Books 【 display / non-display 】

• Development Trend and Prospect of Elemental Technology for Electric Drive Assisted System for Mobility

  Investing R, D Committee on Elemental Technology Related to Electric Drive, Assisted System for Mobility , 2022.05

  IEEJ , 0-0

• The Latest High-frequency Power Conversion Technology Corresponding to the Energy Issues

  InvestigatingRD Committee ontheLatest High-frequency Power Conversion Technology Correspondingto the Energy Issues , 2020.03

  IEEJ Technical Report , No.1468, pp.32-33 , 0-0

• echnical Trend of Electric Drive Assisted System for Mobility toward Creating Sustainable Society

  Investing RD Committee onComprehensive Technology Related to Electric DriveAssistedSystem for Mobility , 2019.02

  IEEJ Technical Report , No.1433, pp.36-43 , 0-0

• ソフトスイッチング技術とその実用化最新動向

  電気学会「ソフトスイッチング技術とその実用化最新動向」調査専門委員会委員 （委員名は割愛） , 2008.09

  電気学会 , ソフトスイッチング技術の動向 DC/AC変換 , 24-30

Grant-in-Aid for Scientific Research 【 display / non-display 】

Grant-in-Aid for Scientific Research 【 display / non-display 】

• Developing of simulation for analyzing fuel consumption on the propulsion system for vessels, making source codes open, and evaluating with real ship data

  Project Period (FY)： 2018/04  -  2021/03  Investigator(s): Hiroyasu KIFUNE

  Grant-in-Aid for Scientific Research(C)  Principal Investigator  18K04579 

  A simple simulation was developed for analyzing fuel consumption characteristics on the propulsion power system for vessels. It is supposed to be used as a quick checker for preparation before conducting a basic design regardless of manufacture's data sheets. Efficiency of each device which consist of the propulsion system is estimated by giving some feature amounts like the rated power and speed. This method is based on an efficiency data base which our research group have collected. The developed simulation would be evaluated by implementing experiments with real vessle. However, all validations were not carried out because the measuring equipments have serious error on the observed data. The equipments will be fixed and tuned within this year due to a guarantee dock. Therefore, the evaluation will be conducted after the dock.

• 水中ロボット向け電力通信機能を有する非接触給電装置の研究開発

  Project Period (FY)： 2015/04  -  2018/03 

  Grant-in-Aid for challenging Exploratory Research  Principal Investigator  15K14261 

• 低環境負荷型タグボートの推進システム構築を目的とした研究

  Project Period (FY)： 2012/04  -  2014/03 

  Grant-in-Aid for Young Scientists(B)  Principal Investigator  24760673 

• AUVに水中で非接触給電するための基礎研究

  Project Period (FY)： 2009/04  -  2012/03 

  Grant-in-Aid for Young Scientists(B)  Principal Investigator  21760664 

• 舶用ディーゼル機関に対応する高周波誘導加熱ＤＰＦの研究

  Project Period (FY)： 2005/04  -  2007/03 

  Grant-in-Aid for Scientific Research(B)  Co-Investigator  17360417 

Lesson Subject 【 display / non-display 】

Lesson Subject 【 display / non-display 】