Title :
Cryogenic cooling technology for HTS electric machinery
Author :
Gouge, Michael J.
Author_Institution :
Appl. Supercond. Group, Oak Ridge Nat. Lab., TN
Abstract :
Cryogenic cooling options for high temperature superconducting (HTS) synchronous machines are outlined. Present electric machines use multiple Gifford-McMahon (GM) cryocoolers coupled to the cold HTS field winding via convective flow of single-phase, cold helium gas or two-phase neon. Pulse tube cryocoolers are an attractive future option due to their potential high reliability. Major performance issues include reliability, efficiency and cost
Keywords :
convection; cooling; helium; high-temperature superconductors; machine windings; neon; superconducting machines; synchronous generators; synchronous motors; HTS; cold helium gas; convective flow; cryogenic cooling; field winding; high temperature superconducting synchronous machines; multiple Gifford-McMahon cryocooler; pulse tube cryocooler; two-phase neon; Availability; Cooling; Costs; Cryogenics; Helium; High temperature superconductors; Machinery; Refrigeration; Synchronous machines; US Department of Energy;
Conference_Titel :
Power Engineering Society General Meeting, 2004. IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-8465-2
DOI :
10.1109/PES.2004.1373239
