Professor introduction
Professor Yuko HIRASE
Dr. Yuko Hirase is a Professor at Kwansei Gakuin University in Japan, specializing in power electronics, microgrids, and renewable energy systems. With a Ph.D. from Osaka University and extensive experience in academia and industry, she has contributed significantly to the fields of virtual synchronous generator control and impedance-based stability analysis. Dr. Hirase is a Senior Member of IEEE and an active participant in academic and governmental initiatives, including her role on the technical committee for Japan's Ministry of Economy, Trade and Industry. Her research has been widely recognized through publications, patents, and collaborative projects aimed at advancing renewable energy integration and grid stability.
Curriculum
- Applied Mathematics I
- Applied Mathematics II
- Analog Circuit
- Theory of Materials Design
- Advanced Courses of Nanotechnology for Sustainable Energy
KEYWORD
Impedance-based Analysis, Virtual Synchronous Generator, Data-driven Analysis, Power system, Power Electronics
Theme
Research in details
VSG Control Technology for Addressing Inertia Deficiency
Integrating distributed power sources via power electronic converters reduces overall inertia in power systems, contributing to grid instability. Unlike synchronous generators that store inertial power through rotating magnetic fields, converters transform direct current (DC) from photovoltaic systems and batteries into alternating current (AC) without storing energy. To compensate, energy storage devices are integrated with converters, using Virtual Synchronous Generator (VSG) control technology to mimic inertial power. Our laboratory is working to enhance and develop stable, advanced applications for this technology with theoretical validation.
List of collaborations
University of Tsukuba, Waseda University, National Institute of Advanced Industrial Science and Technology, Hyogo Prefectural Institute of Technology, Kawasaki Heavy Industries, Takaoka Toko, and so on.