Transport AC Loss Properties of a Bi-2223 Superconducting Coil From 0.1 Hz to 10 Hz
We propose a method to evaluate transport AC losses in Bi-2223 superconducting coils by integrating the local external-field losses of the stacked taped wires over the coil's windings. We measured the transport AC losses of a 16 double-pancake coil of twisted Bi-2223 Ag-sheathed tapes, in the f...
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| Veröffentlicht in: | IEEE transactions on applied superconductivity 2013-06, Vol.23 (3), p.4700804-4700804 |
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| container_title | IEEE transactions on applied superconductivity |
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| creator | Funaki, K. Kurawaki, M. Sato, S. Kajikawa, K. Iwakuma, M. Hayashi, T. Kato, T. Fujino, K. |
| description | We propose a method to evaluate transport AC losses in Bi-2223 superconducting coils by integrating the local external-field losses of the stacked taped wires over the coil's windings. We measured the transport AC losses of a 16 double-pancake coil of twisted Bi-2223 Ag-sheathed tapes, in the frequency range from 0.1 to 10 Hz at liquid nitrogen temperature. We also measured the external-field losses of short specimens of 6-stack Bi-2223 wires both in perpendicular and parallel field configurations through a saddle-shaped pickup coil method. The external losses are mainly due to hysteresis losses in the superconducting filaments and coupling losses among the filaments. The local external-field loss in the test coil is approximately calculated as the sum of perpendicular- and parallel-field losses of the short specimen. In the calculation, geometrical effects because of the neighboring turns in the coil are also considered, in addition to the magnitude and direction distributions of the local magnetic field. We compared the numerically evaluated external-field losses to the measured transport AC losses, and discussed the applicability of the proposed method. |
| doi_str_mv | 10.1109/TASC.2012.2231892 |
| format | Article |
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We measured the transport AC losses of a 16 double-pancake coil of twisted Bi-2223 Ag-sheathed tapes, in the frequency range from 0.1 to 10 Hz at liquid nitrogen temperature. We also measured the external-field losses of short specimens of 6-stack Bi-2223 wires both in perpendicular and parallel field configurations through a saddle-shaped pickup coil method. The external losses are mainly due to hysteresis losses in the superconducting filaments and coupling losses among the filaments. The local external-field loss in the test coil is approximately calculated as the sum of perpendicular- and parallel-field losses of the short specimen. In the calculation, geometrical effects because of the neighboring turns in the coil are also considered, in addition to the magnitude and direction distributions of the local magnetic field. We compared the numerically evaluated external-field losses to the measured transport AC losses, and discussed the applicability of the proposed method.</description><identifier>ISSN: 1051-8223</identifier><identifier>EISSN: 1558-2515</identifier><identifier>DOI: 10.1109/TASC.2012.2231892</identifier><identifier>CODEN: ITASE9</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Bi-2223 wire ; COILING ; Coils ; Coils (windings) ; Electrical engineering. Electrical power engineering ; Electromagnets ; Electronics ; Exact sciences and technology ; external-field loss ; Filaments ; High temperature superconductors ; Loss measurement ; Magnetic field measurement ; Magnetic fields ; Materials ; MATHEMATICAL ANALYSIS ; Mathematical models ; pancake coil ; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices ; Superconducting devices ; SUPERCONDUCTIVITY ; SUPERCONDUCTORS ; Transport ; transport AC loss ; Various equipment and components ; Windings ; WIRE ; Wires</subject><ispartof>IEEE transactions on applied superconductivity, 2013-06, Vol.23 (3), p.4700804-4700804</ispartof><rights>2014 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Jun 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c422t-8405b080cfc05d1c517eea5423d63a7dcb12f96b80d36a8e238308c13d692b313</citedby><cites>FETCH-LOGICAL-c422t-8405b080cfc05d1c517eea5423d63a7dcb12f96b80d36a8e238308c13d692b313</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/6374230$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>310,311,315,781,785,790,791,797,23935,23936,25145,27929,27930,54763</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/6374230$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27529487$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Funaki, K.</creatorcontrib><creatorcontrib>Kurawaki, M.</creatorcontrib><creatorcontrib>Sato, S.</creatorcontrib><creatorcontrib>Kajikawa, K.</creatorcontrib><creatorcontrib>Iwakuma, M.</creatorcontrib><creatorcontrib>Hayashi, T.</creatorcontrib><creatorcontrib>Kato, T.</creatorcontrib><creatorcontrib>Fujino, K.</creatorcontrib><title>Transport AC Loss Properties of a Bi-2223 Superconducting Coil From 0.1 Hz to 10 Hz</title><title>IEEE transactions on applied superconductivity</title><addtitle>TASC</addtitle><description>We propose a method to evaluate transport AC losses in Bi-2223 superconducting coils by integrating the local external-field losses of the stacked taped wires over the coil's windings. We measured the transport AC losses of a 16 double-pancake coil of twisted Bi-2223 Ag-sheathed tapes, in the frequency range from 0.1 to 10 Hz at liquid nitrogen temperature. We also measured the external-field losses of short specimens of 6-stack Bi-2223 wires both in perpendicular and parallel field configurations through a saddle-shaped pickup coil method. The external losses are mainly due to hysteresis losses in the superconducting filaments and coupling losses among the filaments. The local external-field loss in the test coil is approximately calculated as the sum of perpendicular- and parallel-field losses of the short specimen. In the calculation, geometrical effects because of the neighboring turns in the coil are also considered, in addition to the magnitude and direction distributions of the local magnetic field. We compared the numerically evaluated external-field losses to the measured transport AC losses, and discussed the applicability of the proposed method.</description><subject>Applied sciences</subject><subject>Bi-2223 wire</subject><subject>COILING</subject><subject>Coils</subject><subject>Coils (windings)</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electromagnets</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>external-field loss</subject><subject>Filaments</subject><subject>High temperature superconductors</subject><subject>Loss measurement</subject><subject>Magnetic field measurement</subject><subject>Magnetic fields</subject><subject>Materials</subject><subject>MATHEMATICAL ANALYSIS</subject><subject>Mathematical models</subject><subject>pancake coil</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</subject><subject>Superconducting devices</subject><subject>SUPERCONDUCTIVITY</subject><subject>SUPERCONDUCTORS</subject><subject>Transport</subject><subject>transport AC loss</subject><subject>Various equipment and components</subject><subject>Windings</subject><subject>WIRE</subject><subject>Wires</subject><issn>1051-8223</issn><issn>1558-2515</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkM9LwzAUx4soOKd_gHgJiOClM-8ladPjLM4JA4XNc8jSVDq6ZibtQf96MzZ2MJc88v3ByydJboFOAGjxtJouywlSwAkiA1ngWTICIWSKAsR5nKmAVEbtMrkKYUMpcMnFKFmuvO7CzvmeTEuycCGQD-921veNDcTVRJPnJsUYJMshPhvXVYPpm-6LlK5pycy7LYk7kPkv6R0BGofr5KLWbbA3x3ucfM5eVuU8Xby_vpXTRWo4Yp9KTsWaSmpqQ0UFRkBurRYcWZUxnVdmDVgX2VrSimVaWmSSUWkgygWuGbBx8njo3Xn3PdjQq20TjG1b3Vk3BAWMF5wJxmW03v-zbtzgu7idAswxiwfy6IKDy_gIwtta7Xyz1f5HAVV7zGqPWe0xqyPmmHk4NutgdFtHnKYJpyDmAgsu9913B19jrT3JGcvjfyn7A-SrgNk</recordid><startdate>20130601</startdate><enddate>20130601</enddate><creator>Funaki, K.</creator><creator>Kurawaki, M.</creator><creator>Sato, S.</creator><creator>Kajikawa, K.</creator><creator>Iwakuma, M.</creator><creator>Hayashi, T.</creator><creator>Kato, T.</creator><creator>Fujino, K.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Electrical power engineering</topic><topic>Electromagnets</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>external-field loss</topic><topic>Filaments</topic><topic>High temperature superconductors</topic><topic>Loss measurement</topic><topic>Magnetic field measurement</topic><topic>Magnetic fields</topic><topic>Materials</topic><topic>MATHEMATICAL ANALYSIS</topic><topic>Mathematical models</topic><topic>pancake coil</topic><topic>Semiconductor electronics. Microelectronics. Optoelectronics. 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We measured the transport AC losses of a 16 double-pancake coil of twisted Bi-2223 Ag-sheathed tapes, in the frequency range from 0.1 to 10 Hz at liquid nitrogen temperature. We also measured the external-field losses of short specimens of 6-stack Bi-2223 wires both in perpendicular and parallel field configurations through a saddle-shaped pickup coil method. The external losses are mainly due to hysteresis losses in the superconducting filaments and coupling losses among the filaments. The local external-field loss in the test coil is approximately calculated as the sum of perpendicular- and parallel-field losses of the short specimen. In the calculation, geometrical effects because of the neighboring turns in the coil are also considered, in addition to the magnitude and direction distributions of the local magnetic field. We compared the numerically evaluated external-field losses to the measured transport AC losses, and discussed the applicability of the proposed method.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TASC.2012.2231892</doi><tpages>1</tpages></addata></record> |
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| subjects | Applied sciences Bi-2223 wire COILING Coils Coils (windings) Electrical engineering. Electrical power engineering Electromagnets Electronics Exact sciences and technology external-field loss Filaments High temperature superconductors Loss measurement Magnetic field measurement Magnetic fields Materials MATHEMATICAL ANALYSIS Mathematical models pancake coil Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Superconducting devices SUPERCONDUCTIVITY SUPERCONDUCTORS Transport transport AC loss Various equipment and components Windings WIRE Wires |
| title | Transport AC Loss Properties of a Bi-2223 Superconducting Coil From 0.1 Hz to 10 Hz |
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