Abstract
Under the contract with Air Force Research Lab (AFRL), General Electric has successfully tested a high speed, superconducting generator for a Multimegawatt Electric Power System (MEPS). As the first successful full-power test of a superconducting generator for the Air Force, the demonstration tested the generator's load up to 1.3 MW and over 10,000 rpm. A key component of the generator system is a closed loop cryo-refrigeration system to cool the field excitation coil at liquid neon temperature. This paper reports the design and tests of the cryogenic system, including the liquid neon dewar, cryogenic cooling loop for the high temperature superconducting (HTS) field coil and the cryostat. Performance data during both short-term load run and long-term non-load run were presented. Also, some key issues to design a reliable cryogenic system for a superconducting generator were discussed.
Original language | English (US) |
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Pages (from-to) | 380-383 |
Number of pages | 4 |
Journal | Cryogenics |
Volume | 51 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2011 |
Externally published | Yes |
Keywords
- Cryogenic
- High power density
- High temperature superconducting
- Superconducting generator
ASJC Scopus subject areas
- General Materials Science
- General Physics and Astronomy