AC Loss Analysis of a Model Coil for a 40 T Hybrid Magnet
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A model coil for a 40 T hybrid magnet was designed and manufactured at the High Magnetic Field Laboratory of the Chinese Academy of Sciences (CHMFL); the model coil was wound with Nb3Sn cable-in-conduit-conductors (CICC) and cooled with 4.5 K supercritical helium. The performance of the model coil was tested, and the performance tests included a DC charging test, AC losses test, temperature margin test, cyclic load test, and fast discharge test. The AC losses produced in the different operation scenarios of the tests were simulated and analyzed by a modified Gandalf code. The simulated AC losses will be presented and compared with the test results in this paper.
KeywordsModel coil Nb3Sn CICC Hybrid magnet Superconducting outsert
The authors are grateful to Hefei Juneng Electric Physical High-Tech Co. Ltd. of ASIPP for their efforts on the R&D of the model coil.
The work was supported in part by the Knowledge Innovation Program of the Chinese Academy of Sciences under Grant 081zx41131, and the National Natural Science Foundation of China (Grant No. 50907073).
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