Research Summary

My research focuses on high voltage and discharge phenomena. High voltage engineering is a fundamental technology for electric power systems, which are social infrastructure. In recent years, electric power systems are undergoing a period of great technical and institutional change with the massive introduction of renewable energy and distributed power sources, high ageing of existing equipment, and the separation of power transmission and distribution. We are conducting research related to high-voltage insulation and current interruption technology for the development of high-voltage DC transmission networks and the upgrading of existing AC transmission networks. We use optical technology for discharge measurement, information technology for simulation, and even chemistry to elucidate the properties of insulating materials and to design materials. We believe that this is a field in which students can learn a wide range of fundamentals and apply them in society.

Laboratory

https://www.hvg.t.u-tokyo.ac.jp/

Biography

1999
Dr. Degree from the University of Tokyo, Japan
1999 - 2001
Research Associate at the Dept. of Advanced Energy, School of Engineering, The University of Tokyo
2001 - 2003
Researcher at R & D Center, Tokyo Electric Power Company Ltd.
2003 - 2004
Lecturer at the Dept. of Electrical Engineering, School of Engineering, The University of Tokyo
2004 - 2017
Associate Professor at the Dept. of Electrical Eng. and Information Systems, School of Engineering, The University of Tokyo
2017 -
Professor at the Dept. of Electrical Engineering and Information Systems, School of Engineering, The University of Tokyo
2020, 2022
Assistant Dean of the school of Engineering at the University of Tokyo
2023 -
Vice Dean of the school of Engineering at the University of Tokyo

Award History

• Best Paper Award, The Institute of Electrical Engineers of Japan (2022, 2016, 2007, 2000)
• The Institute of Electrical Engineers of Japan, Award for Advancement of Electricity (2021, 2015, 2004)
• ISDEIV2018　Best Paper Award Japan Award
• CIGRE2018　 BestSession Papers in Cigre Science & Engineering

Published Paper

• S. Nakamura, M. Sato, T. Fujii, A. Kumada and Y. Oishi: Electric-field-profile measurement along a probing laser path based on electric-field-induced second-harmonic generation, Physical Review A, Vol. 104, Issue 5, p. 053511 44501 (2022)
• H. Suzuki, H. Shimakawa, A. Kumada, M. Sato: Molecular Dynamics Study of Ionic Conduction in Epoxy Resin, IEEE Transactions on Dielectrics and Electrical Insulation, Vol.29 No.1, pp.170-177 44593 (2022)
• Chihiro Tateyama, Takuto Kobayashi, Akiko Kumada and Kunihiko Hidaka: Conceptual Design and Feasibility Study of Flexible Gas-Insulated Transmission Line Using CF3I Gas Mixture, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 28, No. 4, pp.1424-1430 (2021)
• H. Ejiri、R. Kikuchi、A. Kumada、K. Hidaka、A. Suwa、Y. Matsui、M. Sakaki: Examination of Excitation Temperature of Vacuum Arc Based on Collisional-Radiative Model, IEEE Transactions on Plasma Science, , 12466-12475 (2021)
• Yuki Inada, Ryo Kikuchi, Hiroyuki Nagai, Yasushi Yamano, Mitsuaki Maeyama, Hiroyuki Iwabuchi, Akiko Kumada, Kunihiko Hidaka, and Eiji Kaneko: A Systematic Comparison of Intense-Mode Vacuum Arc Between CuCr and AgWC Electrode by Using Various Optical Diagnostics, IEEE Transactions on Plasma Science, Vol. 48, No. 6, pp. 2224-2236 (2020)
• M. Sato, A. Kumada and K. Hidaka, “Multiscale modeling of charge transfer in polymers with flexible backbones,” Phys. Chem. Chem. Phys., Vol. 21, pp.1812-1819 (2019)