Flux pumping for non-insulated and metal-insulated HTS coils
Superconductor Science and Technology
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Ma, J., Geng, J., & Coombs, T. (2018). Flux pumping for non-insulated and metal-insulated HTS coils. Superconductor Science and Technology, 31 (1) https://doi.org/10.1088/1361-6668/aa99f2
High-temperature superconducting (HTS) coils wound from coated conductors without turn-to-turn insulation (non-insulated (NI) coils) have been proven with excellent electrical and thermal performances. However, the slow charging of NI coils has been a long-lasting problem. In this work, we explore using a transformer-rectifier HTS flux pump to charge an NI coil and a metal-insulated coil. The charging performance comparison is made between different coils. Comprehensive study is done to thoroughly understand the electrical-magnetic transience in charging these coils. We will show that the low-voltage high-current flux pump is especially suitable for charging NI coils with very low characteristic resistance.
Engineering and Physical Sciences Research Council (EP/R016615/1)
External DOI: https://doi.org/10.1088/1361-6668/aa99f2
This record's URL: https://www.repository.cam.ac.uk/handle/1810/274831