Related Experiment Video
Updated: Mar 21, 2026

A 100 KW Class Applied-field Magnetoplasmadynamic Thruster
Published on: December 22, 2018
Flywheel induction motor-generator for magnet power supply in small fusion device
S Hatakeyma1, F Yoshino1, H Tsutsui1
1Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
Abstract:
A flywheel motor-generator (MG) for the toroidal field (TF) coils of a small fusion device was developed which utilizes a commercially available squirrel-cage induction motor. Advantages of the MG are comparably-long duration, quick power response, and easy implementation of power control compared with conventional capacitor-type power supply. A 55-kW MG was fabricated, and TF coils of a small fusion device were energized. The duration of the current flat-top was extended to 1 s which is much longer than those of conventional small devices (around 10-100 ms).
More Related Videos
Related Concept Videos
Faraday Disk Dynamo
DC Generator
Electric Generator: Alternator
The magnetic flux passing through the coil varies sinusoidally as the loop rotates inside the magnetic field. This...
Induction
A...
Torque On A Current Loop In A Magnetic Field
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
Motional Emf

