Power losses of 2 G HTS coils measured in external magnetic DC and ripple fields

dc.contributor.authorChudy, Michal
dc.contributor.authorChen, Yiran
dc.contributor.authorZhang, Min
dc.contributor.authorBaghdadi, Mehdi
dc.contributor.authorLalk, Jorg
dc.contributor.authorPretorius, Tinus
dc.contributor.authorCoombs, Tim
dc.date.accessioned2014-03-07T10:16:56Z
dc.date.available2014-03-07T10:16:56Z
dc.date.issued2014-02
dc.description.abstractPower losses are an important phenomenon in 2nd type superconductors. Precise evaluation of power losses in superconducting coils is crucial for the design of novel machines such as superconducting motors or generators. Although AC losses are relatively easy to measure with electrical methods, it is more difficult to measure power losses in the DC mode, induced by varying external magnetic fields, such as occur in a real operating environment. Especially the problematic one could be the direct-drive wind generator, where several elements introduce nonsynchronous disturbances to the magnetic fields. Modelling had been carried out by numerous authors1-4 in order to estimate the power losses in 2G HTS coils under various external DC or ripple fields; however experimental work in the area is less common due to the difficulty of conducting experiments and special equipment requirements. In this paper, power losses are experimentally measured by the calorimetric method.en
dc.description.librarianhb2014en
dc.description.librarianai2014
dc.description.sponsorshipEngineering and Physical Sciences Research Council under Grant EPRSC EP/H019294/1.en
dc.description.urihttp://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=77en
dc.identifier.citationChudy, M, Chen, Y, Zhang, M, Baghdadi, M, Lalk, J, Pretorius, T & Coombs, T 2014, 'Power losses of 2 G HTS coils measured in external magnetic DC and ripple fields', IEEE Transactions on Applied Superconductivity, vol. 24, no.1, #8200606, pp.1-6.en
dc.identifier.issn1051-8223 (print)
dc.identifier.issn1558-2515 (online)
dc.identifier.other10.1109/TASC.2013.2291072
dc.identifier.urihttp://hdl.handle.net/2263/37103
dc.language.isoenen
dc.publisherIEEE / Institute of Electrical and Electronics Engineers Incorporateden
dc.rights© 2013 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.en
dc.subjectAlternating-current lossesen
dc.subjectCalorimetric methoden
dc.subjectRipple fieldsen
dc.subject.lcshSuperconductors, Type IIen
dc.subject.lcshElectric power transmission -- Alternating currenten
dc.subject.lcshCalorimetryen
dc.titlePower losses of 2 G HTS coils measured in external magnetic DC and ripple fieldsen
dc.typePostprint Articleen

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