Electromagnetic torques and forces due to misalignment effects and eddy currents in the homopolar generator, power supply for the Texas Experimental Tokamak (TEXT)

Conference · Sat Jan 01 04:00:00 EST 1977

OSTI ID:5223287

Driga, M D; Bird, W L; Tolk, K M; Weldon, W F; Rylander, H G; Woodson, H H

Asymmetries in the applied magnetic field due to manufacturing tolerances and rotor-stator misalignments can cause significant forces and moments in a homopolar generator. Parasitic eddy-currents in the rotor, brushes and bearings are also important effects of such asymmetries. The finite element method is used to calculate the magnetic flux distributions in the TEXT homopolar generators. The axial magnetic thrust force and the magnetic tilt moment acting on the rotor are calculated. Eddy-current torques opposing rotor motion are determined using the theory for eddy-current brakes. The results have been used in the design of the TEXT homopolar generator which have been proposed to provide the energy store and conversion for the toroidal field and ohmic heating coils of the new Texas Experimental Tokamak.

• Research Organization: Texas Univ., Austin (USA). Center for Electromechanics
• OSTI ID: 5223287
• Report Number(s): CONF-771029-118
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700203* -- Fusion Power Plant Technology-- Power Supplies
Energy Storage
ALIGNMENT
CURRENTS
EDDY CURRENTS
ELECTRIC CURRENTS
ELECTRIC GENERATORS
FINITE ELEMENT METHOD
MAGNETIC FIELDS
MAGNETIC FLUX
NUMERICAL SOLUTION
PERFORMANCE
SYMMETRY
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS