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Baba Lab
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The lab builds electric energy systems for the era of renewable energy.
AboutAbout the lab
Toward the electric energy systems of the future
The Baba Lab researches how to apply new technologies such as power electronics, energy storage, and ICT to the electric power field.
Its goal is to build the electric energy systems of the future.
The lab studies both software and hardware, for example by running experiments that control equipment installed on remote islands through remote two-way communication.
Key terms
- Power electronics
- Technology that uses semiconductor devices to efficiently convert and control the voltage and frequency of electricity, and to convert between direct current (DC) and alternating current (AC)
- Power system
- The interconnected system that delivers electricity from power plants through transmission and distribution lines to homes and factories
- DC transmission
- A method of transmitting electricity using direct current instead of alternating current. It is used for long-distance transmission and for submarine cables
ResearchResearch themes
The output of renewable energy sources such as wind and solar power varies with the weather, so stabilizing the power system when large amounts are installed is a challenge. The lab studies both approaches that use consumer-side equipment and countermeasures on the grid side.
*Illustrative imageFrequency Stabilization of Island and Small-Scale Power Systems
The lab studies methods that adjust power consumption using consumer-side equipment such as heat pump water heaters, chiller refrigeration units, and farm ponds (agricultural water storage facilities), in order to stabilize power systems with a large share of renewable energy at low cost.
*Illustrative imageVoltage Control Using Load Equipment
The lab investigates whether adding voltage control functions to load equipment that has not previously been used for voltage control can suppress voltage rise at low cost. It has proposed a method that can be realized through software changes alone, and builds equipment to verify it experimentally.
*Illustrative imageDistribution System Countermeasures
When many households install solar power generation, electricity flows in the opposite direction from before, and the voltage on the household side may rise too high. The lab examines countermeasures such as using thicker power lines and installing reactive power compensation devices, including their economic efficiency.
*Illustrative imageOptimization of Power Collection and Transmission for Offshore Wind
To reduce the cost of DC transmission that carries electricity from offshore wind farms to land, the lab studies optimization methods for multi-terminal DC transmission systems that take into account the geographic cost of transmission routes.
MembersFaculty
The members of the Baba Lab consist of faculty, technical staff, administrative assistants, Project Researchers, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorJumpei BabaPublications ↗
- Project Assistant ProfessorBo JiePublications ↗
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: “Transmission Lines at Sunset” Kkiefuik / CC BY 4.0 (cropped)
- Frequency Stabilization of Island and Small-Scale Power Systems: “Outdoor air conditioner unit installed in residential garden space” Shixart1985 / CC BY 2.0 (cropped)
- Voltage Control Using Load Equipment: “Utility pole transformers” Versageek / CC BY-SA 3.0 (cropped)
- Distribution System Countermeasures: “Solar panels on house roof” Gray Watson User:E090 / CC BY-SA 3.0 (cropped)
- Optimization of Power Collection and Transmission for Offshore Wind: “Middelgrunden wind farm edit filtered” Photo by Kim Hansen. Postprocessing (crop, rotation, color adjustment, dust spot removal and noise reduction) by Richard Bartz and Kim Hansen. / CC BY-SA 3.0 (cropped)
- Related lab (Fujimoto-Shimizu-Gunji-Takano-Nguyen Lab): “Wheel hub motor of an electric kick scooter, sidepanel removed (2022)” Andrez1 / CC BY-SA 4.0 (cropped)
- Related lab (Takamiya Lab): “TI HC32 Die Shot (4x2-Input OR Gate)” Cole L / CC BY-SA 2.0 (cropped)
- Related lab (Someya-Jimbo Lab): “Stretchable Electronics” Steve Jurvetson from Menlo Park, USA / CC BY 2.0 (cropped)
- Related lab (Koseki-Ohnishi Lab): “The 'Maglev' - Japan's latest contribution to the ongoing quest for the reduction of travel times. ( )” Dom Pates / CC BY 2.0 (cropped)
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