Performance information

• Optimization of PV and battery systems in university campuses: A combined planning and operation approach under uncertainties　　　　　　　　　　　　　　　
  Masahiro Furukakoi; Akito Nakadomari; Akie Uehara; Narayanan Krishnan; Ashraf M. Hemeida; Tomonobu Senjyu
  Energy and Buildings, Volume：335, May 2025, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.1016/j.enbuild.2025.115512
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85219494477&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85219494477&origin=inward
  DOI ID：10.1016/j.enbuild.2025.115512, ISSN：0378-7788, SCOPUS ID：85219494477
• Evaluation of voltage unbalance definitions for voltage control in distribution systems with photovoltaic penetration　　　　　　　　　　　　　　　
  Akito Nakadomari; Narayanan Krishnan; Masahiro Furukakoi; Ashraf Mohamed Hemeida; Tomonobu Senjyu
  IEEJ Transactions on Electrical and Electronic Engineering, Volume：5, May 2024, [Reviewed], [Lead, Corresponding]
  English, Scientific journal
• Coordinated voltage control of three-phase step voltage regulators and smart inverters to improve voltage profile and energy efficiency in unbalanced distribution networks　　　　　　　　　　　　　　　
  Akito Nakadomari; Narayanan Krishnan; Ashraf Mohamed Hemeida; Hiroshi Takahashi; Eitaro Omine; Tomonobu Senjyu
  Energy Reports, Sep. 2023, [Reviewed], [Lead]
  Scientific journal
  DOI：https://doi.org/10.1016/j.egyr.2023.04.277
  DOI ID：10.1016/j.egyr.2023.04.277, ORCID：133801632
• Optimal Capacity and Operational Planning for Renewable Energy-Based Microgrid Considering Different Demand-Side Management Strategies　　　　　　　　　　　　　　　
  Mark Kipngetich Kiptoo; Oludamilare Bode Adewuyi; Harun Or Rashid Howlader; Akito Nakadomari; Tomonobu Senjyu
  Energies, May 2023, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.3390/en16104147
  DOI ID：10.3390/en16104147, ORCID：135327740
• Potential and economic viability of green hydrogen production from seawater electrolysis using renewable energy in remote Japanese islands　　　　　　　　　　　　　　　
  Hongjing He; Yongyi Huang; Akito Nakadomari; Hasan Masrur; Narayanan Krishnan; Ashraf M. Hemeida; Alexey Mikhaylov; Tomonobu Senjyu
  Renewable Energy, Jan. 2023, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.1016/j.renene.2022.12.046
  DOI ID：10.1016/j.renene.2022.12.046, ORCID：124557135
• Optimal Multi-Objective Power Scheduling of a Residential Microgrid Considering Renewable Sources and Demand Response Technique　　　　　　　　　　　　　　　
  Mahmoud M. Gamil; Soichirou Ueda; Akito Nakadomari; Keifa Vamba Konneh; Tomonobu Senjyu; Ashraf M. Hemeida; Mohammed Elsayed Lotfy
  Sustainability, Oct. 2022, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.3390/su142113709
  DOI ID：10.3390/su142113709, ORCID：121596033
• A Short Assessment of Renewable Energy for Optimal Sizing of 100% Renewable Energy Based Microgrids in Remote Islands of Developing Countries: A Case Study in Bangladesh　　　　　　　　　　　　　　　
  Homeyra Akter; Harun Howlader; Akito Nakadomari; Md. Islam; Ahmed Saber; Tomonobu Senjyu
  Energies, Volume：15, Number：3, First page：1084, Last page：1084, Feb. 2022, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.3390/en15031084
  DOI ID：10.3390/en15031084, ORCID：107428924
• Technical and Economic Analysis of an HVDC Transmission System for Renewable Energy Connection in Afghanistan　　　　　　　　　　　　　　　
  Gul Ahmad Ludin; Akito Nakadomari; Atsushi Yona; Suresh Mikkili; Shriram Srinivasarangan Rangarajan; Edward Randolph Collins; Tomonobu Senjyu
  Sustainability, Volume：14, Number：3, Jan. 2022, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.3390/su14031468
  DOI ID：10.3390/su14031468, eISSN：2071-1050, ORCID：107188345, Web of Science ID：WOS:000759370700001
• Impact of Time-of-Use Demand Response Program on Optimal Operation of Afghanistan Real Power System　　　　　　　　　　　　　　　
  Mohammad Masih Sediqi; Akito Nakadomari; Alexey Mikhaylov; Narayanan Krishnan; Mohammed Elsayed Lotfy; Atsushi Yona; Tomonobu Senjyu
  Energies, Volume：15, Number：1, First page：296, Last page：296, Jan. 2022, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.3390/en15010296
  DOI ID：10.3390/en15010296, eISSN：1996-1073, Web of Science ID：WOS:000748206200001
• Dynamic Voltage Stability Assessment in Remote Island Power System with Renewable Energy Resources and Virtual Synchronous Generator　　　　　　　　　　　　　　　
  akito nakadomari; Ryo Miyara; TALAL ALHARBI; N. Prabaharan; Shriram Srinivasarangan Rangarajan; Edward Randolph Collins; TOMONOBU SENJYU
  Energies, Volume：14, Number：18, First page：5851, Last page：5851, Sep. 2021, [Reviewed], [Lead]
  `
  English, Scientific journal
  DOI：https://doi.org/10.3390/en14185851
  DOI ID：10.3390/en14185851, eISSN：1996-1073, ORCID：100251339
• Unbalanced Voltage Compensation with Optimal Voltage Controlled Regulators and Load Ratio Control Transformer　　　　　　　　　　　　　　　
  Akito Nakadomari; Ryuto Shigenobu; Takeyoshi Kato; Narayanan Krishnan; Ashraf Mohamed Hemeida; Hiroshi Takahashi; Tomonobu Senjyu
  Energies, Volume：14, Number：11, First page：2997, Last page：2997, May 2021, [Reviewed], [Lead]
  English, Scientific journal
  DOI：https://doi.org/10.3390/en14112997
  DOI ID：10.3390/en14112997, ORCID：94238582
• Optimization of voltage unbalance compensation by smart inverter　　　　　　　　　　　　　　　
  Ryuto Shigenobu; Akito Nakadomari; Ying Yi Hong; Paras Mandal; Hiroshi Takahashi; Tomonobu Senjyu
  Energies, Volume：13, Number：18, Sep. 2020, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.3390/en13184623
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85090981162&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85090981162&origin=inward
  DOI ID：10.3390/en13184623, eISSN：1996-1073, SCOPUS ID：85090981162
• A resonant hybrid DC circuit breaker for multi-terminal HVDC systems　　　　　　　　　　　　　　　
  Ryo Miyara; Akito Nakadomari; Hidehito Matayoshi; Hiroshi Takahashi; Ashraf M. Hemeida; Tomonobu Senjyu
  Sustainability (Switzerland), Volume：12, Number：18, Sep. 2020, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.3390/SU12187771
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85092306135&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85092306135&origin=inward
  DOI ID：10.3390/SU12187771, eISSN：2071-1050, SCOPUS ID：85092306135
• Optimal sizing of a real remote Japanese microgrid with sea water electrolysis plant under time-based demand response programs　　　　　　　　　　　　　　　
  Mahmoud M. Gamil; Makoto Sugimura; Akito Nakadomari; Tomonobu Senjyu; Harun Or Rashid Howlader; Hiroshi Takahashi; Ashraf M. Hemeida
  Energies, Volume：13, Number：14, Jul. 2020, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.3390/en13143666
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85089803356&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85089803356&origin=inward
  DOI ID：10.3390/en13143666, eISSN：1996-1073, SCOPUS ID：85089803356

• 循環式陸上養殖 Vol.2　　　　　　　　　　　　　　　
  竹村明洋; 千住智信; Zhu Yafan; 仲泊明徒, [Contributor]
  Jul. 2024
  Japanese, Total pages：303p, Responsible for pages：243-249
  CiNii Books：http://ci.nii.ac.jp/ncid/BD07710950
  ISBN：9784895319874, CiNii Books ID：BD07710950

• モデル予測制御に基づく不平衡配電系統の電圧制御に関する一検討　　　　　　　　　　　　　　　
  仲泊明徒; 千住智信
  Mar. 2023
  Mar. 2023 - Mar. 2023, Japanese, Oral presentation
• デマンドレスポンスを考慮した陸上養殖施設の最適設備容量および最適運用計画　　　　　　　　　　　　　　　
  上田総一郎, 仲泊明徒, 千住智信
  Mar. 2023
  Mar. 2023 - Mar. 2023, Japanese, Oral presentation
• 三相SVRとスマートインバータを用いた不平衡配電電圧の協調制御　　　　　　　　　　　　　　　
  仲泊 明徒; 千住 智信; 高橋 弘
  Sep. 2022
  Sep. 2022 - Sep. 2022, Japanese, Oral presentation
• 配電系統の電圧不平衡補償における 三相SVRとスマートインバータの協調制御に関する一検討　　　　　　　　　　　　　　　
  仲泊 明徒; 千住 智信; 高橋 弘
  Sep. 2022
  Sep. 2022 - Sep. 2022, Japanese, Oral presentation
• A Study on Cooperative Voltage Unbalance Compensation by Three-Phase Step Voltage Regulators and Smart Inverters　　　　　　　　　　　　　　　
  Akito Nakadomari; Tomonobu Senjyu; Hiroshi Takahashi
  The International Council on Electrical Engineering (ICEE) Conference 2022, Jun. 2022
  Jun. 2022 - Jul. 2022, Japanese, Oral presentation
• A Virtual Synchronous Generator Control Strategy Considering Dynamic Voltage Stability　　　　　　　　　　　　　　　
  Ryo Miyara; Akito Nakadomari; Tomonobu Senjyu; Hiroshi Takahashi
  The International Council on Electrical Engineering (ICEE) Conference 2022
  Jun. 2022 - Jul. 2022, Japanese, Oral presentation
• 不平衡配電系統における三相 SVR の多目的最適配置　　　　　　　　　　　　　　　
  仲泊明徒; 千住智信; 高橋弘
  Mar. 2022
  Mar. 2022 - Mar. 2022, Japanese, Oral presentation
• 離島電力系統における動的電圧安定性を考慮した仮想同期発電機制御法　　　　　　　　　　　　　　　
  宮良諒; 仲泊明徒; 高橋弘; 千住智信
  Mar. 2022
  Mar. 2022 - Mar. 2022, Japanese, Oral presentation
• Dynamic Voltage Stability Improvement by Reactive Power Adjustment of Virtual Synchronous Generator in Remote Island Power Systems　　　　　　　　　　　　　　　
  Ryo Miyara; Akito Nakadomari; Eitaro Omine; Tomonobu Senjyu
  2022 IEEE International Conference in Power Engineering Application (ICPEA), Mar. 2022
  Mar. 2022 - Mar. 2022, English, Oral presentation
• A Study on Objective Dimensionality Reduction of Unbalanced Distribution System Operation　　　　　　　　　　　　　　　
  Akito Nakadomari; Narayanan Krishnan; Mohammed Elsayed Lotfy; Ashraf Mohamed Hemeida; Hiroshi Takahashi; Tomonobu Senjyu
  2021 11th International Conference on Power and Energy Systems (ICPES2021), Dec. 2021
  English, Oral presentation
• Multi-Objective Optimal Placement of Three-Phase Step Voltage Regulator considering Voltage Unbalance　　　　　　　　　　　　　　　
  Akito Nakadomari; Narayanan Krishnan; Ashraf Mohamed Hemeida; Hiroshi Takahashi; Tomonobu Senjyu
  2021 11th International Conference on Power and Energy Systems (ICPES2021), Dec. 2021
  English, Oral presentation
• 仮想同期発電機の無効電力補償による動的電圧安定度改善に関する検討　　　　　　　　　　　　　　　
  宮良諒; 仲泊明徒; 千住智信; 高橋弘
  Dec. 2021
  Dec. 2021 - Dec. 2021, Japanese, Oral presentation
• A Comparative Study on Voltage Unbalance Definitions　　　　　　　　　　　　　　　
  Akito Nakadomari; Tomonobu Senjyu
  2021 Conference of IEEJ in Okinawa, Dec. 2021
  English, Oral presentation
• Optimal Placement of Three-Phase SVR considering Cooperation with LRT in Unbalanced Distribution System　　　　　　　　　　　　　　　
  Akito Nakadomari; Tomonobu Senjyu
  International Conference on Materials and Systems for Sustainability (ICMaSS) 2021, Nov. 2021
  Nov. 2021 - Nov. 2021, English, Oral presentation
• Control strategies for energy management of MMC-MTDC smart grid　　　　　　　　　　　　　　　
  Ryo Miyara; Akito Nakadomari; Hiroshi Takahashi; Tomonobu Senjyu
  2021 IEEE International Power and Renewable Energy Conference (IPRECON), Sep. 2021
  English, Oral presentation
• 不平衡配電系統における LRT との協調を考慮した SVR の最適配置　　　　　　　　　　　　　　　
  仲泊明徒; 千住智信; 高橋 弘
  Sep. 2021
  Japanese, Oral presentation
• CBIによる動的電圧安定性評価手法に関する一検討　　　　　　　　　　　　　　　
  仲泊 明徒; 宮良 諒; 千住 智信; 高橋 弘
  Sep. 2021
  Japanese, Oral presentation
• 不平衡配電系統の多目的最適化における目的関数の検討　　　　　　　　　　　　　　　
  仲泊 明徒; 千住 智信
  Aug. 2021
  Japanese, Oral presentation
• Multi Objective Optimization of LRT and SVR Scheduling considering Voltage Unbalance　　　　　　　　　　　　　　　
  Akito Nakadomari; Ryuto Shigenobu; Takeyoshi Kato; Tomonobu Senjyu; Hiroshi Takahashi
  The International Council on Electrical Engineering (ICEE) Conference 2021, Jul. 2021
  English, Oral presentation
• 電圧不平衡補償を考慮したLRTとSVRの多目的最適化　　　　　　　　　　　　　　　
  仲泊明徒; 千住智信
  Mar. 2021
  2021 - 2021, Japanese, Oral presentation
• 電圧不平衡補償のためのLRTとSVRの協調制御における制約条件の検討　　　　　　　　　　　　　　　
  仲泊明徒; 千住智信; 高橋弘
  Dec. 2020
  Japanese, Oral presentation
• Optimal control and placement of step voltage regulator for voltage unbalance improvement and loss minimization in distribution system　　　　　　　　　　　　　　　
  Akito Nakadomari; Ryuto Shigenobu; Tomonobu Senjyu
  IEEE Region 10 Annual International Conference, Proceedings/TENCON, Nov. 2020
  Nov. 2020 - Nov. 2020
  This paper describes optimal voltage control and optimal placement of the three-phase individual step voltage regulator (3φSVR) considering voltage unbalance improvement. As a result of active efforts to promote renewable energy, there is a concern that voltage unbalance will increase due to an increase in distributed power sources. Therefore, this paper proposes the optimal control and placement method for 3φSVR for voltage unbalance improvement and loss minimization. Simulations verified that all the voltage unbalanced indices satisfied the constraint value and the objective function improved. These results confirmed that the effectiveness of the optimal control and placement method for 3φSVR.
• Optimal sizing and operation of distributed energy resources in micro-grid with fuel cells　　　　　　　　　　　　　　　
  Makoto Sugimura; Tetsuya Yabiku; Akito Nakadomari; Hiroshi Takahashi; Tomonobu Senjyu
  IEEE Region 10 Annual International Conference, Proceedings/TENCON, Nov. 2020
  Nov. 2020 - Nov. 2020
  This study proposes an optimal installed capacity of Distributed Energy Resources (DERs) for a small remote island (Aguni-Island) is belongs to Okinawa Prefecture in Japan. Photovoltaic (PV), Wind Generator (WG), Battery Energy Storage System (BESS), and Fuel Cell (FC) are considered to be installed for optimal sizing. The simulation conducted in this study has been simplified to account seasonal load and weather variations. This simulations aims to minimize the fuel and total cost of the system as it resulted in a total cost, which is lower than it was before DERs to be implemented. In addition, carbon dioxide emissions from diesel generators have been reduced.
• Voltage Stability Improvement Method in Large Power System during Transmission Line Faults　　　　　　　　　　　　　　　
  Kazuki Oya; Tomonobu Senjyu; Akito Nakadomari; Ryo Miyara
  Asia-Pacific Power and Energy Engineering Conference, APPEEC, Sep. 2020
  Sep. 2020 - Sep. 2020
  The voltage stability index of the power system is an important indicator for the stable operation of the power system. In addition, when a portion of the grid goes out, the flow of power is altered and power flows to the load through other transmission lines. At this time, the voltage stability is expected to decrease because the amount of power flowing through the transmission lines will increase. This study investigates a new voltage stability index called the critical boundary index (CBI), which can estimate the voltage stability more accurately than the conventional index. In this study, we have investigated how to compensate the voltage stability of the power system in the event of a line fault using the CBI. The algorithms discussed were tested on the IEEE 118 bus system.
• Optimal Capacity and Operation of Distributed Energy Resources in Microgrid by Advanced Direct Load Control　　　　　　　　　　　　　　　
  Makoto Sugimura; Akito Nakadomari; Hiroshi Takahashi; Tomonobu Senjyu
  Asia-Pacific Power and Energy Engineering Conference, APPEEC, Sep. 2020
  Sep. 2020 - Sep. 2020
  In this paper, the Renewable Energy System (RES) is considered in a small electric power system, equivalent to Aguni-Island, Okinawa Prefecture where the electricity demand is 1 MW. The proposed power system is consisting of Photovoltaic (PV), Wind Generator (WG), Diesel Generator (DG), and Battery Energy Storage System (BESS). In this study, we proposed the optimal capacity and operation method of the PV, WG, BESS, and DG in the microgrid. The main purpose of this study is to reduce the cost of power generating from RES by cutting off the load. Households have considered with small PVs and BESSs, retained charging status during cutoff. This study, make it is possible to respond to the uncertainty caused by generating from RES. In addition, the burden on customers can be reduced. The simulation method used in this research is MILP, validated using MATLAB.
• A Study on Voltage Unbalance Compensation and Minimizing Loss in Distribution System using SVR　　　　　　　　　　　　　　　
  Akito Nakadomari; Ryuto Shigenobu; Makoto Sugimura; Kosuke Takahashi; Tomonobu Senjyu
  Asia-Pacific Power and Energy Engineering Conference, APPEEC, Sep. 2020
  Sep. 2020 - Sep. 2020
  This paper describes a voltage unbalance compensation and minimizing loss in the distribution system by using three-phase individual step voltage regulator (3\phi \mathrm{S}\mathrm{V}\mathrm{R}). As a result of active efforts to promote renewable energy, there is a concern that voltage unbalance will increase due to an increase in distributed power sources. Therefore, this paper proposes a method of individual tap control for each phase of 3\phi \mathrm{S}\mathrm{V}\mathrm{R} by optimization. Through simulations, it was verified that all unbalance indices were below the constraint value, and the effectiveness of voltage unbalance compensation and minimizing loss by 3\phi \mathrm{S}\mathrm{V}\mathrm{R} was confirmed.
• Optimal Sizing of a Microgrid System with EV Charging Station in Park Ride Facility　　　　　　　　　　　　　　　
  Kosuke Takahashi; Hasan Masrur; Akito Nakadomari; Krishna Narayanan; Hiroshi Takahashi; Tomonobu Senjyu
  Asia-Pacific Power and Energy Engineering Conference, APPEEC, Sep. 2020
  Sep. 2020 - Sep. 2020
  In recent years, global warming caused by massive greenhouse gas emissions has become a severe problem. As a countermeasure, the Paris Convention and the Basic Energy Plan have set CO2 reduction targets, including renewable energy power generation and electric vehicles (EV). However, an increase in the amount of electrical power charged to EVs due to the higher penetration rate will cause a significant load on the distribution system, making it difficult to control the distribution voltage. In this paper, we proposed a case where priority charging control based on a long-term charging contract is used for control at an EV charging station that combines Park Ride with EV charging using renewable energy and a Battery Energy Storage System (BESS). In this EV charging station, stationary BESS in a small-scale off-grid eliminates fluctuations in renewable energy generation, power system problems, and traffic congestion.
• 自家消費型スマートハウスにおける最適運用　　　　　　　　　　　　　　　
  玉城奏; 仲泊明徒; 千住智信
  Sep. 2020
  Japanese, Oral presentation
• 電圧不平衡補償を考慮した配電系統の多目的最適化　　　　　　　　　　　　　　　
  仲泊明徒; 千住智信; 高橋弘
  Sep. 2020
  Japanese, Oral presentation
• 配電電圧不平衡補償を考慮したLRTとSVRの協調制御　　　　　　　　　　　　　　　
  仲泊明徒; 千住智信; 高橋弘
  Sep. 2020
  2020 - 2020, Japanese, Oral presentation
• 配電系統の電圧不平衡補償を考慮したSVRの最適配置及び最適制御手法　　　　　　　　　　　　　　　
  仲泊明徒; 千住智信; 高橋弘
  Sep. 2020
  2020 - 2020, Japanese, Oral presentation
• Optimal control and placement of SVR for voltage unbalance compensation　　　　　　　　　　　　　　　
  仲泊明徒; 千住智信
  Mar. 2020
  2020 - 2020, Japanese, Oral presentation
• SVRを用いた配電電圧三相不平衡補償の検討　　　　　　　　　　　　　　　
  仲泊明徒, 千住智信, 高橋弘
  Dec. 2019
  Japanese, Oral presentation

• Sep. 2024 - Present
  電磁気学演習Ⅱ
• Sep. 2024 - Present
  電気電子工学総合実験Ⅱ
• Apr. 2024 - Present
  Electrical Engineering, Electronics, and Applied Physics Laboratory II, Saitama University

• Jan. 2020 - Present, IEEE
• Sep. 2019 - Present, The Institute of Electronics, Information and Communication Engineers (IEICE)
• May 2019 - Present, The Institute of Electrical Engineers of Japan