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Ishizaki Lab
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A systems and control lab that uses the power of mathematics to design the power and communication infrastructure of the future.

AboutAbout the lab
The power of mathematics weaves technology together.
The Ishizaki Lab studies, from a mathematical perspective, the energy and information and communication infrastructure systems that will support future society.
It focuses in particular on next-generation power systems (smart grids) that make the most of renewable energy, and on next-generation information and communication networks.
The lab values an approach it calls “mathematics grounded in practice”: building mathematics from real-world problems, then applying that mathematics back to the design of real systems.
The lab invites anyone to feel free to get in touch about lab visits and admissions consultations.
Key terms
- Smart grid
- A next-generation power system that aims to make maximum use of renewable energy
- Retrofit control
- A design approach that adds control to part of an already operating control system afterward, without rebuilding the whole system
- Grid-forming
- A mode of operation in which power generation equipment such as inverters creates its own voltage and frequency to support the power grid
NewsLab news
Research on evaluating the stability of atomic clocks announced by Tokyo Tech, Gunma University, and NICT
A doctoral student received an Outstanding Presentation Award at the Japan Joint Automatic Control Conference
Associate Professor Ishizaki received the Tokyo Tech Award for Engineering Education
ResearchResearch themes
With “systems and control, energy, and information and communication” as keywords, the lab studies infrastructure systems that support future society, based on control theory, information theory, systems science, and mathematical optimization. It aims to design optimal and sustainable infrastructure by using mathematics to understand the principles and structures behind phenomena.
*Illustrative imageDistributed control through modular design
Based on retrofit control theory, the lab studies mathematical theory for designing large-scale control systems in separate parts, where many agents each make decisions independently.
*Illustrative imageDeveloping GUILDA, a simulation platform
The lab develops GUILDA, a numerical simulation platform that makes it easier for students and researchers in systems and control to carry out energy-related research and development.
*Illustrative imageControlling inverters that support renewable energy
Using passivity, a property of synchronous generators, as a clue, the lab mathematically studies control that lets renewable energy inverters be treated as a kind of grid-forming generator.
*Illustrative imageRobust management methods for renewable energy
The lab represents the constantly changing output of renewable energy as interval forecasts with confidence levels or as probabilistic forecasts, and studies energy management that is robust to that uncertainty.
MembersFaculty
The Ishizaki Lab consists of faculty members, researchers, technical support staff, doctoral students (including working professionals), master’s and undergraduate students, and visiting researchers and visiting students.As of 2026
- Associate ProfessorTakayuki IshizakiPublications ↗
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “High voltage transmission towers and lines” Stefan Andrej Shambora (St_A_Sh) / CC BY 2.0 (cropped)
- Distributed control through modular design: “Ganderkesee Substation (380 kV to 110 kV), aerial view” Bin im Garten / CC BY-SA 3.0 (cropped)
- Developing GUILDA, a simulation platform: “Gorskii 04414u” Sergei Prokudin-Gorskii / Public domain (cropped)
- Controlling inverters that support renewable energy: “Solar park inverter and mounts” Lauri Veerde / CC BY-SA 4.0 (cropped)
- Robust management methods for renewable energy: “Wind Turbines ^ Solar Panels at Upper Holton Wind ^ Solar Farm - geograph.org.uk - 4618332” Geographer / CC BY-SA 2.0 (cropped)
- Related lab (井村研究室): “Berlin Air Route Traffic Control Center, 1987” Thomas Farr / Public domain (cropped)
- Related lab (早川研究室): “Neighborhood of attractor of discretized Lorenz system. XYZ(28) plane” German A. Chernykh & Irina A. Chernykh / CC BY-SA 4.0 (cropped)
- Related lab (畑中研究室): “Agricultural drone in use on rice field near Nisoshi, Aomori” Benlisquare / CC BY-SA 4.0 (cropped)
- Related lab (倉林研究室): “Ant Colony Trail” Prof OJ / CC BY-SA 4.0 (cropped)
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