Name NAKAJIMA Tatsuhito
Official Title Professor
Affiliation Department of Electrical,Electronic and Communication Engineering
Profile Tatsuhito Nakajima received his B.S., M.S, and Dr.Eng. degrees from the University of Tokyo, Tokyo, Japan, in 1985, 1987, and 1990. He joined Tokyo Electric Power Company in 1990. His main works were R&Ds on applying power electronics for power systems, including HVDC, STATCOM and grid-connected inverters. He joined Tokyo City University as Professor in 2016. His research topic covers control technologies for multi-terminal offshore high-voltage dc transmission systems and grid-connected inverters of renewable energy sources and battery storages. Tatsuhito Nakajima is a member of IEEE, IEE of Japan and CIGRE.
Research Field(Keyword & Summary)
  1. (1) Grid-forming inverter control for improving power system stabilty

    With increase in renewable energy sources such as photovoltaic generation and wind power generation, power system stability is being deteriorated and the grid frequency fluctuations are getting worse. For improving power system stability, the contol strategies of the grid-forming inverter are being researched.

  2. (2) Offshore multi-terminal offshore high voltage dc ransmission

    Offshore wind farms are being commissioned in the world and multi-terminal high voltage dc transmission (HVDC) is a promising method for long-distance bulk power transmission from the offshore wind farms to the onshore load centers. Control and operation schemes for the multi-terminal HVDC are being researched.

Representative Papers
  1. (1) PSCAD/EMTDC and RTDS Simulation Analysis of Multivendor Multi-terminal HVDC System Connected to Offshore Windfarms, 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)
  2. (2) Control Hardware-in-the-Loop Simulation on Fast Frequency Response of Energy Storage System Equipped with Advanced Frequency Detection Algorithm, 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)
  3. (3) PMU Based Short Circuit Capacity Estimation and Experimental Verification on an Analog Simulator, 2020 International Conference on Smart Grids and Energy Systems (SGES)
  4. (4) Onshore grid frequency control using multi-terminal HVDC connected to full-scale converter for offshore wind generator and adjustable speed motor drive for offshore plant, 15th IET International Conference on AC and DC Power Transmission (ACDC 2019)
  5. (5) A Suppression Method of Harmonic Instability in Line-Commutated Converters Applying Active Harmonic Filters, 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia)
Grant-in-Aid for Scientific Research Support: Japan Society for Promotion of Science (JSPS)
Research Grants/Projects including subsidies, donations, grants, etc. NEDO: Next Generation Offshore HVDC System Research and Development Project (2015-2019)
NEDO: Multi-Purpose and multi-terminal HVDC R&D Project (2020-2023)
NEDO: New Genration Power Newwork Stability R&D Project (2019-2021)
Recruitment of research assistant(s) No
Affiliated academic society (Membership type) (1) Institute of Electrical and Electronics Engineers, IEEE (Member)
(2) Institute of Electrical Engineers of Japan, IEEJ (Fellow)
(3) Institute of Electrical Installation Engineers of Japan, IEIEJ (Member)
Education Field (Undergraduate level) Basic of Power and Energy, Control System Engineering
Education Field (Graduate level) Advanced Power System Engineering, Advanced Power and Energy Engieering