Coil Optimization for HTS Machines

Nenad Mijatovic, Bogi Bech Jensen, Asger Bech Abrahamsen, Chresten Træholt, N.F. Pedersen, Victor Manuel Rodriguez Zermeno

    Research output: Contribution to conferencePosterResearchpeer-review

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    An optimization approach of HTS coils in HTS synchronous machines (SM) is presented. The optimization is aimed at high power SM suitable for direct driven wind turbines applications. The optimization process was applied to a general radial flux machine with a peak air gap flux density of ~3T. The proposed coil design is optimized with respect to minimizing the perpendicular field while still maximizing the amplitude of fundamental space harmonic. This guarantees the lowest HTS loss density and best utilization of expensive HTS material in the field winding of the SM. Additionally, accounting for different tape parameters Ici, ni and Ci, where Ici, ni and Ci are critical current, n - value and price of the ith tape respectively and i=1, 2, 3…, further optimization with respect to cost vs. HTS losses has been performed. Allowing for different types of HTS tapes in the coils, a guidance to which tape is suitable for which coil segment is presented. Thus, the performed study gives valuable input for the coil design of HTS machines ensuring optimal usage of HTS tapes.
    Original languageEnglish
    Publication date2010
    Publication statusPublished - 2010
    EventApplied Superconductivity Conference - Washington D.C., United States
    Duration: 1 Aug 20106 Aug 2010


    ConferenceApplied Superconductivity Conference
    Country/TerritoryUnited States
    CityWashington D.C.,


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