Mechanical Design Concept for 1000-MVA Superconducting Turboalternator

[+] Author and Article Information
Philip Thullen, Joseph L. Smith

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Mass.

J. Eng. Ind 93(4), 1166-1168 (Nov 01, 1971) (3 pages) doi:10.1115/1.3428057 History: Received July 10, 1969; Online July 15, 2010


A design concept for the construction of a 1000-mva superconducting alternator is determined by consideration of (a) electrical requirements, (b) thermal isolation requirements, (c) mechanical strength, and (d) structural rigidity. The alternator consists of a rotating superconducting field winding and stationary water cooled stator. This study indicates that a superconducting machine will have lower specific weight and smaller physical size, higher critical speed, increased efficiency, lower synchronous reactance, increased I22t, and higher terminal voltage than conventional machines.

Copyright © 1971 by ASME
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