NDLI: Homopolar motor technology development

Content Provider	IEEE Xplore Digital Library
Author	Thome, R.J. Creedon, W. Reed, M. Bowles, E. Schaubel, K.
Copyright Year	2002
Description	Author affiliation: Adv. Technol. Group, Gen. Atomics, San Diego, CA, USA (Thome, R.J.; Creedon, W.; Reed, M.; Bowles, E.; Schaubel, K.)
Abstract	Homopolar motors are compact and, therefore, are attractive for use in a direct electric drive for a ship. The critical components for the motor are the brushes, the superconducting coils, and the power conversion system to produce the high current, low voltage DC required for the motor. A program is underway at General Atomics for the Office of Naval Research in which a 500 kW Test Stand Motor and a 3.7 MW Motor are being built for demonstration of the technology. The Test Stand Motor will use one superconducting coil and about 25% of the copper fiber brushes needed for the 3.7 MW motor. The latter will use the rotor from the Test Stand Motor, a full complement of brushes, and two superconducting coils. NbTi superconducting coils are being used, but the design allows for a direct transition to high temperature superconductors when it is cost effective and practical to do so. Selected features of the test facility and designs for both motors are discussed together with projections for motors at the 19 MW level in terms of size and weight.
Starting Page	260
Ending Page	264
File Size	1293297
Page Count	5
File Format	PDF
ISBN	0780375181
DOI	10.1109/PESS.2002.1043229
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-07-21
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Homopolar machines Superconducting coils Brushes DC motors Marine vehicles Power conversion Low voltage Copper Optical fiber testing Rotors
Content Type	Text
Resource Type	Article

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