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

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dc.contributor.author Chudy, Michal
dc.contributor.author Chen, Yiran
dc.contributor.author Zhang, Min
dc.contributor.author Baghdadi, Mehdi
dc.contributor.author Lalk, Jorg
dc.contributor.author Pretorius, Tinus
dc.contributor.author Coombs, Tim
dc.date.accessioned 2014-03-07T10:16:56Z
dc.date.available 2014-03-07T10:16:56Z
dc.date.issued 2014-02
dc.description.abstract Power 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.librarian hb2014 en
dc.description.librarian ai2014
dc.description.sponsorship Engineering and Physical Sciences Research Council under Grant EPRSC EP/H019294/1. en
dc.description.uri http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=77 en
dc.identifier.citation Chudy, 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.issn 1051-8223 (print)
dc.identifier.issn 1558-2515 (online)
dc.identifier.other 10.1109/TASC.2013.2291072
dc.identifier.uri http://hdl.handle.net/2263/37103
dc.language.iso en en
dc.publisher IEEE / Institute of Electrical and Electronics Engineers Incorporated en
dc.rights © 2013 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission. en
dc.subject Alternating-current losses en
dc.subject Calorimetric method en
dc.subject Ripple fields en
dc.subject.lcsh Superconductors, Type II en
dc.subject.lcsh Electric power transmission -- Alternating current en
dc.subject.lcsh Calorimetry en
dc.title Power losses of 2 G HTS coils measured in external magnetic DC and ripple fields en
dc.type Postprint Article en


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