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Advanced Electrical Machinery Engineering Lab
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Reviving the 19th-century motor with the latest mathematics and superconductivity.

AboutAbout the lab
Building electrical machines that are kind to the Earth.
The Advanced Electrical Machinery Engineering Lab was established in 2017 as an endowed chair of the Graduate School of Engineering, and studies advanced electrical machinery systems for realizing a low-carbon society.
Returning to first principles for the electromagnetic phenomena in rotating reference frames, the lab works to establish a general way of describing energy conversion between electrical and mechanical forms.
The lab considers a wide range of applications, including transportation equipment centered on electric vehicles, industrial equipment, and distributed power sources.
Key terms
- Rotating machine
- A machine, such as a motor or generator, that rotates to convert between electrical and mechanical energy
- Superconductivity
- A phenomenon in which electrical resistance becomes zero when a material is cooled below a certain temperature
- Inverter
- A device that converts DC electricity into AC with variable frequency and voltage. It is used to drive motors
NewsLab news
Specially Appointed Professor Taketsune Nakamura received the Science and Technology Impact Award from the Cryogenics and Superconductivity Society of Japan for research and development of a centrifugal liquid hydrogen submerged pump
A paper on superconducting magnetic bearings by Specially Appointed Associate Professor Yutaka Terao received the Paper Award (Academic) from the Cryogenics and Superconductivity Society of Japan
ResearchResearch themes
The lab works on unconventional themes in electrical machinery, from fundamental physical phenomena and materials to machine design and systemization.
*Illustrative imageRethinking the principles of 19th-century rotating machines
The lab revisits the basic principles, invented in the 19th century, of rotating machines, which play the central role in the flow of electrical energy, and creates innovation with the latest mathematical, analytical, and experimental methods. It also realizes power conversion systems that make use of SiC and other materials.
*Illustrative imageBuilding and running prototype superconducting motors
The lab has mature design and prototyping technology for superconducting induction-synchronous machines, and can carry out everything from design to load testing, even for fully superconducting machines up to the tens-of-kilowatts class. It aims to realize a fully superconducting motor, of which few load tests have succeeded worldwide, and to take on the development of MW-class machines as well.
*Illustrative imageViewing electrical machines as systems
The lab treats rotating machines, batteries, inverters, loads, and cooling systems in a unified way as impedances, and considers system configurations based on the dynamic matching of their multiphysics.
MembersFaculty
The lab's members consist of faculty, researchers, doctoral students, master's students, and others.
- Program-Specific ProfessorTaketsune Nakamura
- Program-Specific Associate ProfessorYutaka Terao
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: “Blaupunkt CR-4500 - drive unit - tape Drive Capstan, brushless DC electric motor-9992” Raimond Spekking / CC BY-SA 4.0 (cropped)
- Rethinking the principles of 19th-century rotating machines: “An electric motor presented to Kelvin by James Joule in 1842, Hunterian Museum, Glasgow” Stephencdickson / CC BY-SA 4.0 (cropped)
- Building and running prototype superconducting motors: “High-Temperature Superconducting Cables ( )” National Institute of Standards and Technology / Public domain (cropped)
- Viewing electrical machines as systems: “Protean Electric In-Wheel Motor Technology” Protean Electric / CC BY-SA 4.0 (cropped)
- Related lab (Transmission Media Lab): “Fiber optic cable installation (rubin- )” Rubin Observatory/NSF/AURA / CC BY 4.0 (cropped)
- Related lab (Applied Superconductivity Lab): “Levitation superconductivity” Julien Bobroff, Frederic Bouquet, LPS, Orsay, France / CC BY-SA 3.0 (cropped)
- Related lab (Intelligent Circuit Design Lab): “Close-up of a VHS Player Circuit Board 2” DiscoA340 / CC0 (cropped)
- Related lab (Digital Communications Lab): “Cellular 5G Equipment - Cell Tower Antennas” Tony Webster / CC BY 2.0 (cropped)
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