Large superconducting DC drives with separate torque reaction windings

Author

Spooner, Edward ; Chalmers, Brian

Author_Institution

Sch. of Eng., Durham Univ., UK

fYear

1994

fDate

2-6 Oct 1994

Firstpage

298

Abstract

A slotless armature DC motor with multiplex winding can be designed for higher power rating than one with a conventional slotted armature. Conventional field systems would be very heavy and a superconducting field winding is considered in order to create an iron-free and lightweight machine. The superconducting field winding is relieved of reaction torque by means of a special winding attached to a separate torque tube. The reaction winding is also designed to establish the necessary commutation flux in the interpole region. Test results from a small laboratory machine demonstrate the principle of the proposed torque reaction winding. A design for a 20 MW ship propulsion motor is presented

Keywords

DC motor drives; commutation; electric propulsion; magnetic flux; ships; superconducting machines; torque; 20 MW; commutation flux; interpole region; iron-free machine; lightweight machine; multiplex winding; power rating; reaction torque; ship propulsion motor; slotless armature DC motor; superconducting DC drives; torque reaction windings; torque tube; Armature; Commutation; DC motors; Design engineering; Laboratories; Machine windings; Marine vehicles; Power engineering and energy; Propulsion; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-1993-1

Type

conf

DOI

10.1109/IAS.1994.377483

Filename

377483