Title :
Temperature and frequency effects in a high-performance superconducting bearing
Author :
Day, Arthur C. ; Hull, John R. ; Strasik, Michael ; Johnson, Phil E. ; McCrary, Kevin E. ; Edwards, John ; Mittleider, John A. ; Schindler, James R. ; Hawkins, Richard A. ; Yoder, Michael L.
Author_Institution :
Boeing Phantom Works, Seattle, WA, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
A high-temperature superconducting (HTS) bearing was fabricated and tested by itself and as a component in a 1-kWh and a 10-kWh flywheel energy system (FES). The rotational losses of the HTS bearing as a function of rotational rate and HTS temperature were determined. The 1-kWh FES was tested with a motor/generator and with an eddy current clutch to determine the motor/generator losses.
Keywords :
flywheels; high-temperature superconductors; magnetic bearings; superconducting magnets; 1 kWh; 10 kWh; eddy current clutch; flywheel energy system; frequency dependence; high temperature superconducting bearing; magnetic levitation; motor/generator; rotational loss; temperature dependence; Assembly; Flywheels; Frequency; High temperature superconductors; Laboratories; Permanent magnets; Stability; Steel; Superconducting magnets; Testing;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.813028
