2D-a01

Nb3Sn 線材

ࢪ࢙࣮࣮ࣜࣟࣝἲ࡟ࡼࡿ 1E6Q ㉸㟁ᑟ⥺ᮦࡢస〇᮲௳࡜⤌⧊Structures in Jelly Roll processed Nb3Sn wires prepared by different proceduresኴยᕝ ᜤ἞, Ᏻ⸨ᬛ⣫(㝔) , 㔠⏣ᑦஓ(Ꮫ㒊), ᰘᒣᣅஓ(Ꮫ㒊) (ᮾᾏ኱࣭ᕤ); ➉ෆ Ꮥኵ(NIMS)
K.Tachikawa, T.Ando, N.Kaneda, T.Shibayama (Faculty of Engr., Tokai Univ.); T.Takeuchi(NIMS)
E-mail:tacsuper@keyaki.cc.u-tokai.ac.jp
䠍㻚㻌 䛿䛨䜑䛻㻌㻿㼚 ᇶྜ㔠䝅䞊䝖䜢⏝䛔䛶స〇䛧䛯䝆䜵䝸䞊䝻䞊䝹㻔㻶㻾㻕ἲ㻺㼎㻟㻿㼚 ⥺ᮦ䛻䛚䛡䜛䝅䞊䝖⤌ᡂ䚸⥺ᚄ䚸⇕ฎ⌮᮲௳➼䛾ㅖ᮲௳䛾⥺ᮦ⤌⧊䛻ᑐ䛩䜛ᙳ㡪䛻䛴䛔䛶◊✲䛧䛯䚹䜎䛯䚸㻶㻾 ἲ㻺㼎㻟㻿㼚 ⥺ᮦ䛷䛿䝅䞊䝖㛫䛾㠃䛸㠃䛷ᣑᩓ䛩䜛䛣䛸䛻䜘䜚ඃ䜜䛯≉ᛶ䛜䛘䜙䜜䜛䛸⪃䛘䜙䜜䜛䛾䛷䚸᪂䛧䛟 㻿㼚 ᇶྜ㔠䛾௦䜚䛻㻯㼡 䝅䞊䝖䛸 㻿㼚㻙㼀㼕 ⰺ䜢⏝䛔䛶 㻶㻾 ἲ䛻䜘䜚⥺ᮦ䜢స〇䛧䚸䛭䛾⤌⧊䛻䛴䛔䛶䜒◊✲䜢⾜䛳䛯䚹㻌䛺䛚䚸ᚑ᮶䛾 㻶㻾 ἲ 㻺㼎㻟㻿㼚 ⥺ᮦ䛷䛿 㼀㼏㻌 䛿 㼛㼒㼒㼟㼑㼠䡚㻝㻤㻚㻝㻷 䛷䚸㻠㻚㻞㻷 䛻䛚䛡䜛 㻮㼏㻞㻌 䛿 㼛㼒㼒㼟㼑㼠㻞㻢㻚㻡㼀 䛾㑄⛣䛜ᚓ䜙䜜䛶䛔䜛䚹㻌㻌䠎㻚㻌 ᐇ㦂᪉ἲ㻌㻿㼚㻙㼀㼍㻘㻌㻿㼚㻙㻮 ⣔ཬ䜃 㻿㼚㻙㻺㼎 䛾ΰྜ⢊ᮎ䛻ᑡ㔞䛾 㼀㼕 䜢⨨᥮䛧䚸䛣䜜䛻 㻯㼡 䜢ῧຍ䛧䛯ΰྜ⢊ᮎ䜢⁐⼥ᣑᩓ䛧䚸䝪䝍䞁≧䛾 㻿㼚ᇶྜ㔠䜢స〇䛧䛯䚹䛣䜜䜢䝥䝺䝇䛻䜘䜚䝥䝺䞊䝖䛸䛧䚸ᖹ䝻䞊䝹ᅽᘏ䛻䜘䜚ཌ䛥 㻤㻜䃛㼙 䛾䝅䞊䝖䛻ຍᕤ䛧䛯䚹䛣䜜䜢ཌ䛥 㻝㻜㻜䃛㼙䛾ᕷ㈍䛾 㻺㼎 䝅䞊䝖䛸㔜䛽䛶 㻝㻚㻞㼙㼙䃥䛾 㻺㼎㻙㻟㻚㻟㼍㼠㻑㼀㼍 ⰺ䛻ᕳ䛝䛴䛡䛶 㻶㻾 」ྜయ䜢స〇䛧䛯䚹స〇䛧䛯 㻿㼚 ᇶྜ㔠䝅䞊䝖ཬ䜃௚䛾㒊ᮦ䛸」ྜయ䜢ᅗ 㻝 䛻♧䛧䛯䚹㻌୍᪉䚸㻯㼡 䝅䞊䝖䜢⏝䛔䛯 㻶㻾 ἲ⥺ᮦ䛾స〇䛿䚸ཌ䛥 㻤㻜䃛㼙 䛾㻯㼡 䝅䞊䝖䛸 㻝㻜㻜䃛㼙 䛾 㻺㼎 䝅䞊䝖䜢㔜䛽ྜ䜟䛫䡚㻞㻚㻡㼙㼙䃥䛾㻿㼚㻙㼀㼕 䛾ⰺᲬ䛻ᕳ䛝䛣䜏䚸䛥䜙䛻࿘䜚䛻ཌ䛥 㻤㻜䃛㼙 䛾 㻿㼚 ᇶྜ㔠䝅䞊䝖䜢ᕳ䛝䛴䛡䛯䚹䛣䜜䜙䛾」ྜయ䜢䛭䜜䛮䜜እᚄ㻛ෆᚄ㻝㻜㻚㻜㻛㻣㻚㻟㻌 㼙㼙 䛾 㻺㼎㻙㻟㻚㻟㼍㼠㻑㼀㼍 䝅䞊䝇䛻ᤄධ䛧䛶⁁䝻䞊䝹ຍᕤᚋ⥺ᘬ䛝䛧䛶༢ⰺ⥺䜢ᚓ䛯䚹⥺ᮦ䛾⇕ฎ⌮ᚋ䛾᩿㠃⤌⧊䜢㻿㻱㻹 ཬ䜃 㻱㻼㻹㻭 䛻䜘䜚ほᐹ䛧䚸䜎䛯⇕ฎ⌮᫬㛫䜢ኚ䛘䛶㻺㼎㻟㻿㼚 ᒙ䛾⏕ᡂ㐣⛬䜢ㄪ䜉䛯䚹㻌㻌䠏㻚㻌 ᐇ㦂⤖ᯝ䛸⪃ᐹ㻌㻌 㻌 㻣㻡㻜䉝㽢㻝㻜㼔 䛾⇕ฎ⌮䛷䛿 㻺㼎 䛜 㻿㼚 ᇶྜ㔠ᒙ䛻ᣑᩓ䛧䚸㻺㼎㻿㼚㻞 ᒙ 䛜 ᆒ ୍ 䛻 ᙧ ᡂ 䛥 䜜 䜛 䚹 ᅗ 㻞 䛻 ⥺ ᚄ 㻝㻚㻞㼙㼙 䛾㻠㻛㻝㻔㻿㼚㻛㼀㼍㻕㻙㻣㼀㼕㻗㻞㻯㼡 䝅䞊䝖⥺ᮦ䛾 㻣㻡㻜䉝㽢㻝㻜㻜㼔 ⇕ฎ⌮ᚋ䛾⥺ᮦ᩿㠃䛾 㻱㻼㻹㻭 䝬䝑䝢䞁䜾䛸 㻺㼎㻟㻿㼚 ᒙ䛾㠃✚ẚ䜢♧䛧䛯䚹䛣䛾ᅗ䛛䜙ཌ䛔 㻺㼎㻟㻿㼚 ᒙ䛜⏕ᡂ䛥䜜䛶䛔䜛䛣䛸䛜ศ䜚䚸䜎䛯㻺㼎㻟㻿㼚 䛾㠃✚ẚ䛿䡚㻡㻡㻑䛻㐩䛧䛯䚹䛣䜜䛿䚸⥺ᚄ䜢 㻝㻚㻞㼙㼙 䛸ᚑ᮶䜘䜚⣽䛟䛧䛯䛯䜑 㻿㼚 䛸 㻺㼎 䛾ᣑᩓຠ⋡䛜ྥୖ䛧䛯䛯䜑䛷䚸⥺ᮦ䛾 㻶㼏 ྥୖ䛻䜒ᐤ୚䛩䜛䛸⪃䛘䜙䜜䜛䚹ᅗ 㻟 䛻䛿ᅗ 㻞 䛾䝬䝑䝢䞁䜾䛾⥺ศᯒ⤖ᯝ䜢♧䛧䛯䚹䛣䛾⥺ศᯒ䛛䜙䚸⏕ᡂ䛥䜜䛯㻺㼎㻟㻿㼚 ᒙ䛿⃰ᗘ໙㓄䛜ᑡ䛺䛟䚸໬Ꮫ㔞ㄽẚ⤌ᡂ䛻㏆䛔䛣䛸䛜ศ䜛䚹䜎䛯䚸㻶㻾 㒊䛻䜒ᒙ≧䛻 㻺㼎㻟㻿㼚 ᒙ䛜⏕ᡂ䛥䜜䛶䛔䜛䚹㻌㻌 ᅗ 㻠 䛻 㻯㼡 䝅䞊䝖䜢⏝䛔䛯ຍᕤᚋ䛾⥺ᮦ᩿㠃䛾㢧ᚤ㙾෗┿䛸స〇䝥䝻䝉䝇䜢♧䛧䛯䚹ᕥ䛾෗┿䛛䜙䚸㻶㻾 ᒙ䛜䜋䜌ᆒ୍䛻ᙧᡂ䛥䜜䛶䛔䜛䚹䛺䛚䚸ྑ䛾స〇䝥䝻䝉䝇䛿ᚑ᮶䛾 㻶㻾 ἲ䛸ẚ䜉䛶㒊ᮦ䜢ኚ᭦䛧䛯䛰䛡䛷ᡭ㡰䛿䜋䛸䜣䛹ኚ䜟䜙䛺䛔䚹⥺ᮦ䛿 㻿㼚 䛸 㻯㼡 䜢ᣑᩓ䛥䛫䜛 㻝 ḟ⇕ฎ⌮䛸 㻺㼎㻟㻿㼚 䜢⏕ᡂ䛥䛫䜛 㻞ḟ⇕ฎ⌮䜢⾜䛔䚸䛭䛾⤌⧊䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌㻌㻌㻌

Fig.1 Components used in the JR composites. (1) Sn-based
alloy sheet, (2) Nb sheet, (3) central core, (4) Cu plugs, (5)Nb-3.3at%Ta sheath, (6) assembled JR composite.

Fig.2 An EPMA mapping on the cross-section of 4/1(Sn/Ta)-7at%Ti+2wt%Cu sheet wire heat treated at 750Υ for 100h.

Fig.3 EPMA line scanning chart on the cross-sectionof the wire shown in Fig.2.

― 182 ―

Fig.4

Cross-section of the JR wire using Cu/Nbsheets and a Sn-Ti central rod.
第83回

2010年度秋季低温工学・超電導学会

2D-a02

Nb3Sn 線材

ෆ㒊ᣑᩓἲ 㻺㼎㻟㻿㼚 ⥺ᮦ䛾㛤Ⓨ㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㼕㼚㼠㼑㼞㼚㼍㼘㻌㼀㼕㼚㻌㼜㼞㼛㼏㼑㼟㼟㼑㼐㻌㻺㼎㻟㻿㼚㻌㼣㼕㼞㼑㻌㻌኱ᅡ㻌 ୍ᐇ㻘㻌 ࿴⏣ᒣ㻌 ⰾⱥ㻘㻌 ᮌᮧ㻌 Ᏺ⏨㻘㻌 ୰ᕝ㻌 ࿴ᙪ㻘㻌 ᐑୗ㻌 ඞᕫ䠄᪥❧㟁⥺䠅㻌㻻㻴㻭㼀㻭㻌㻷㼍㼠㼟㼡㼙㼕㻘㻌㼃㻭㻰㻭㼅㻭㻹㻭㻌㼅㼛㼟㼔㼕㼔㼕㼐㼑㻘㻌㻷㻵㻹㼁㻾㻭㻌㻹㼛㼞㼕㼛㻘㻌㻺㻭㻷㻭㻳㻭㼃㻭㻌㻷㼍㼦㼡㼔㼕㼗㼛㻘㻌㻹㻵㼅㻭㻿㻴㻵㼀㻭㻌㻷㼍㼠㼟㼡㼙㼕㻌㻔㻴㼕㼠㼍㼏㼔㼕㻌㻯㼍㼎㼘㼑㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼛㼔㼍㼠㼍㻚㼗㼍㼠㼟㼡㼙㼕㻬㼔㼕㼠㼍㼏㼔㼕㻙㼏㼍㼎㼘㼑㻚㼏㼛㻚㼖㼜㻌㻌㻟㻞㻜㻭㻛㼙㼙㻞 䛾 㼚㼛㼚㻙㻯㼡㻌㻶㼏 䛜ᚓ䜙䜜䛯䚹䛣䜜䛿䝤䝻䞁䝈ἲ䛾䛚䜘㻝䠊䛿䛨䜑䛻㻌䛭 㻝㻚㻡 ಸ䛻┦ᙜ䛩䜛್䛷䛒䜛䚹㻢㻣㻟 ⰺ⥺ᮦ䠄䃥㻝㼙㼙䠅䛷䜒ྠᵝ㻺㼎㻟㻿㼚 ㉸㟁ᑟ⥺ᮦ䛾〇㐀᪉ἲ䛸䛧䛶ᚑ᮶䜘䜚䝤䝻䞁䝈ἲ䛜䛻 㻶㼏 ᐃ䜢⾜䛳䛯⤖ᯝ䚸㻝㻤㼀 䛷⣙ 㻟㻠㻜㻭㻛㼙㼙㻞 䛜ᚓ䜙䜜䚸䝡䝺ᗈ䛟⏝䛔䜙䜜䛶䛔䜛䛜䚸䝤䝻䞁䝈୰䛾 㻿㼚 ⃰ᗘ䛾ᅛ⁐㝈䠄⣙䝑䝖䝃䜲䝈䜢኱ᆺ໬䛧䛯ሙྜ䛷䜒䚸㻶㼏 䛾್䜢⥔ᣢ䛧䛶㛗ᑻ໬䛜㻝㻡㻚㻤㼣㼠㻑䠅䛻䜘䜚 㻿㼚 ౪⤥㔞䛜ไ㝈䛥䜜䚸⮫⏺㟁ὶ≉ᛶ䜒䜋䜌ୖྍ⬟䛷䛒䜛䛣䛸䜢☜ㄆ䛧䛯䚹㻌㝈䛻㐩䛧䛶䛔䛯䚹ෆ㒊ᣑᩓἲ䛿 㻿㼚 ౪⤥※䛸䛧䛶༢య䛷 㻿㼚 䜢௨ୖ䛾䜘䛖䛻䚸ᮏᵓ㐀䛾ෆ㒊ᣑᩓἲ⥺ᮦ䛷䚸Ⰻዲ䛺ఙ⥺」ྜ໬䛩䜛䛾䛷 㻿㼚 ⃰ᗘ䛾ไ⣙䛜䛺䛟䚸䛣䛾䛯䜑㧗䛔⮫⏺㟁ຍᕤᛶ䛸㉸㟁ᑟ≉ᛶ䛜ᚓ䜙䜜䜛䛣䛸䛜☜ㄆ䛷䛝䛯䚹㻌ὶ≉ᛶ䛜ྍ⬟䛷䚸㧗☢ሙ䝬䜾䝛䝑䝖䛺䛹䜈䛾ᛂ⏝䛜ᮇᚅ䛥䜜ᙜ᪥䛿䚸☢໬⋡ ᐃ䛸䝣䜱䝷䝯䞁䝖䝃䜲䝈➼䛸䛾㛵ಀ䛻䛴䛔䛶䛔䜛䚹㻌䛶䜒ሗ࿌䛩䜛䚹㻌
ᡃ䚻䛿༢ⰺ䛾 㻺㼎 ⣲⥺䛸 㻿㼚 ⣲⥺䜢」ྜ໬䛩䜛᪉ἲ䛷ෆ㒊㻌ᣑᩓἲከⰺ⥺ᮦ䜢స〇䛧䚸㉸㟁ᑟ≉ᛶ䛾 ᐃホ౯䜢⾜䛳䛶㻌䛔䜛䚹䛣䛾᪉ἲ䛷䛿 㻝 ᅇ䛾ከⰺ໬䛷ከⰺ⥺ᮦ䜢స〇䛩䜛䛯䜑ప䝁䝇䝖䛷䛒䜛䛣䛸䚸㻺㼎 䝣䜱䝷䝯䞁䝖䛜 㻿㼚 䝣䜱䝷䝯䞁䝖䛸ྠ䝃䜲䝈䛷䛒䜛䛯䜑ఙ⥺ຍᕤ୰䜔⇕ฎ⌮୰䛻 㻺㼎 䝣䜱䝷䝯䞁䝖䛜⛣ື䛧䛻䛟䛔䛺䛹䛾≉㛗䛜䛒䜛䛸⪃䛘䜙䜜䜛䚹ᮏሗ࿌䛷䛿ୖグᵓ㐀䛾⥺ᮦ䜢ヨస䛧䚸ఙ⥺ຍᕤᛶ䚸㉸㟁ᑟ≉ᛶ䛺䛹䜢ホ౯䛧䛶䚸ᮏ᪉ᘧ䛻䜘䜛㛗ᑻ⥺ᮦ䛾స〇䛾ྍ⬟ᛶ䛻䛴䛔䛶☜ㄆ䛩䜛䚹㻌㻌㻞䠊ᐇ㦂᪉ἲ㻌⥺ᮦ䛾స〇䛿䚸䛿䛨䜑䛻 㻯㼡 ⿕そ䛧䛯༢ⰺ䛾 㻺㼎 ⣲⥺䛸䚸ྠ䛨䛟 㻯㼡 ⿕そ䛧䛯༢ⰺ䛾 㻿㼚 ྜ㔠〇䛾⣲⥺䜢స〇䛧䚸㻲㼕㼓㻚㻝䛻♧䛩᩿㠃ᶍᘧᅗ䛾䜘䛖䛻 㻿㼚 ⣲⥺ྠኈ䛜㞄᥋䛧䛺䛔䜘䛖ศᩓ㓄⨨䛥䛫䛯ᵓ㐀䛷」ྜ໬䛧䛶ከⰺ䝡䝺䝑䝖䜢స〇䛧䛯䚹ⰺᩘ䛿䚸⥺ᮦ䛾ᇶᮏⓗ䛺≉ᛶ䜢☜ㄆ䛩䜛䛯䜑䛾ᑠᆺ⥺ᮦ䛸䛧䛶㻲㼕㼓㻚㻞㻌㻻㼡㼠㼑㼞㻌㼢㼕㼑㼣㻌㼛㼒㻌㻢㻣㻟㻙㼒㼕㼘㼍㼙㼑㼚㼠㻌㼕㼚㼠㼑㼞㼚㼍㼘㻌㼀㼕㼚㻌㼜㼞㼛㼏㼑㼟㼟㼑㼐㻌㻝㻜㻥 ⰺ䚸䛚䜘䜃㛗ᑻ໬䜢┠ᶆ䛻ⰺᩘ䜢ቑຍ䛧䛯 㻢㻣㻟 ⰺ䛾ከⰺ㻺㼎㻟㻿㼚㻌㼣㼕㼞㼑㻌㼍㼒㼠㼑㼞㻌㼐㼞㼍㼣㼕㼚㼓㻌㻔䃥㻝㼙㼙㻕㻚㻌⥺ᮦ䜢స〇䛧䛯䚹᭱ᚋ䛻䛣䜜䜢ᢲฟ䛚䜘䜃ఙ⥺ຍᕤ䛻䜘䜚⥺㻌ᚄ䃥㻜㻚㻡䡚䃥㻝㻚㻜㼙㼙 䛾⥺ᮦ䜢స〇䛧䛯䚹㻌స〇䛧䛯⥺ᮦ䛾㉸㟁ᑟ≉ᛶ䜢䚸㻝㻞㼀䡚㻝㻤㼀 䛾☢ሙ୰䛷 㻜㻚㻝䃛㼂㻛㼏㼙 䛾㟁⏺ᇶ‽䛷⮫⏺㟁ὶ್䜢 ᐃ䛧䚸䛣䜜䜢 㼚㼛㼚㻙㻯㼡㒊䛾᩿㠃✚䛷㝖䛧䛶 㼚㼛㼚㻙㻯㼡㻌㻶㼏 䜢ồ䜑䛯䚹㻌㻌㻌㻞㻜㻜䃛㼙㻌
㻯㼡㻯㼡㻙㻿㼠㼍㼎㼕㼘㼕㼦㼑㼞㻌㻲㼕㼓㻚㻟㻌㻯㼞㼛㼟㼟㻙㼟㼑㼏㼠㼕㼛㼚㼍㼘㻌㼢㼕㼑㼣㻌㼛㼒㻌㻢㻣㻟㻙㼒㼕㼘㼍㼙㼑㼚㼠㻌㼣㼕㼞㼑㻌㻌 㻔䃥㻝㻚㻜㼙㼙㻕㻌㻺㼎㻙㼒㼕㼘㼍㼙㼑㼚㼠㻌
㻯㼡



㻿㼚

㼀㼍㻙㼎㼍㼞㼞㼕㼑㼞㻌㻝㻜㻜㻜㻞㻿㼚㻙㼒㼕㼘㼍㼙㼑㼚㼠㻌㼚㼛㼚㻙㻯㼡㻌㻶㼏㻌㻔㻭㻛㼙㼙 㻕㻺㼎㻲㼕㼓㻚㻝㻌㻿㼏㼔㼑㼙㼍㼠㼕㼏㻌㼐㼞㼍㼣㼕㼚㼓㻌㼛㼒㻌㼕㼚㼠㼑㼞㼚㼍㼘㻌㼀㼕㼚㻌㼣㼕㼞㼑㻚㻌
㻌
㻌
㻟䠊⤖ᯝ㻌
㻲㼕㼓㻚㻞 䛻⥺ᚄ䃥㻝㼙㼙 䛻ఙ⥺䛧䛯 㻢㻣㻟 ⰺ⥺ᮦ䛾ᴫほ䜢♧䛩䚹⥺ᚄ䃥㻝㼙㼙 䛷ᩘ 㻝㻜㻜㼙 䛾㛗䛥䜎䛷ఙ⥺㏵୰䛾᩿⥺䜒䛺䛟ຍᕤ䛩䜛䛣䛸䛜䛷䛝䚸ᮏᵓ㐀䛾⥺ᮦ䛜Ⰻዲ䛺ఙ⥺ຍᕤᛶ䜢᭷䛩䜛䛣䛸䜢☜ㄆ䛧䛯䚹㻲㼕㻚㻟 䛿ྠᵝ䛻⥺ᚄ䃥㻝㼙㼙 䛾⥺ᮦ䛾᩿㠃ᙧ≧䜢ほᐹ䛧䛯⤖ᯝ䛷䛒䜛䚹つ๎ⓗ䛺䝣䜱䝷䝯䞁䝖㓄ิ䛸䚸ᆒ୍䛺䝣䜱䝷䝯䞁䝖ᙧ≧䛷䛒䜛䛣䛸䜘䜚䚸ῶ㠃ຍᕤ䛻䜘䜛᩿㠃ᙧ≧䛾஘䜜䜒ᑠ䛥䛔䛣䛸䛜䚸Ⰻዲ䛺㛗ᑻఙ⥺䜢ྍ⬟䛻䛧䛯䜒䛾䛸⪃䛘䜙䜜䜛䚹㻌㻲㼕㼓㻚㻠 䛻 㼚㼛㼚㻙㻯㼡㻌㻶㼏 䛾☢ሙ౫Ꮡᛶ ᐃ⤖ᯝ䜢♧䛩䚹㻝㻜㻥 ⰺ䛾 ᑠ ᆺ ⥺ ᮦ 䠄 䃅 㻜㻚㻡㼙㼙 䠅 䛷 䛿 䚸 㻝㻤㼀 䛾 ☢ ሙ ୰ 䛷 䛚 䜘 䛭― 183 ―

㻠㻚㻞㻷㻜㻚㻝䃛㼂㻛㼏㼙

㻤㻜㻜
㻢㻜㻜
㻠㻜㻜
㻞㻜㻜
㻜

㻝㻜㻥㻙㼒㼕㼘㼍㼙㼑㼚㼠㻌䃥㻜㻚㻡㼙㼙㻢㻣㻟㻙㼒㼕㼘㼍㼙㼑㼚㼠䚷䃥㻝㻚㻜㼙㼙㻝㻜 㻝㻝 㻝㻞 㻝㻟 㻝㻠 㻝㻡 㻝㻢 㻝㻣 㻝㻤 㻝㻥 㻞㻜㻹㼍㼓㼚㼑㼠㼕㼏㻌㻲㼕㼑㼘㼐䚷㻔㼀㻕㻲㼕㼓㻚㻠㻌㻶㼏㻙㻮㻌㼜㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㼛㼒㻌㻝㻜㻥㻙㼒㼕㼘㼍㼙㼑㼚㼠㻌㼍㼚㼐㻌㻢㻣㻟㻙㼒㼕㼘㼍㼙㼑㼚㼠㻌
㼣㼕㼞㼑㻚

第83回

2010年度秋季低温工学・超電導学会

2D-a03

Nb3Sn 線材

ෆ㒊ᣑᩓἲ 㻺㼎㻟㻿㼚 ⥺ᮦ䛾⤖ᬗ⤌⧊䛸⮫⏺㟁ὶ≉ᛶ㻌㻹㼕㼏㼞㼛㼟㼠㼞㼡㼏㼠㼡㼞㼑㻌㼍㼚㼐㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼜㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㼛㼒㻌㼕㼚㼠㼑㼞㼚㼍㼘㻌㼠㼕㼚㻌㼜㼞㼛㼏㼑㼟㼟㼑㼐㻌㻺㼎㻟㻿㼚㻌㼣㼕㼞㼑㻌㻌࿴⏣ᒣ㻌 ⰾⱥ䠈኱ᅡ㻌 ୍ᐇ䠈ᮌᮧ㻌 Ᏺ⏨䠈୰ᕝ㻌 ࿴ᙪ䠄᪥❧㟁⥺䠅㻌㼃㻭㻰㻭㼅㻭㻹㻭㻌㼅㼛㼟㼔㼕㼔㼕㼐㼑䠈㻻㻴㻭㼀㻭㻌㻷㼍㼠㼟㼡㼙㼕䠈㻷㻵㻹㼁㻾㻭㻌㻹㼛㼞㼕㼛䠈㻺㻭㻷㻭㻳㻭㼃㻭㻌㻷㼍㼦㼡㼔㼕䡇㼛㻌㻔㻴㼕㼠㼍㼏㼔㼕㻌㻯㼍㼎㼘㼑㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼣㼍㼐㼍㼥㼍㼙㼍㻚㼥㼛㼟㼔㼕㼔㼕㼐㼑㻬㼔㼕㼠㼍㼏㼔㼕㻙㼏㼍㼎㼘㼑㻚㼏㼛㻚㼖㼜㻌㻌㻌᫬䛾㟁ὶ್䜢䚸⥺ᮦ䛾㠀 㻯㼡 㡿ᇦ䛾᩿㠃✚䛷㝖䛩䜛䛣䛸䛷ồ㻝䠊䛿䛨䜑䛻㻌
䜑䛯䚹㻌ෆ㒊ᣑᩓἲ 㻺㼎㻟㻿㼚 ⥺ᮦ䛿㧗䛔⮫⏺㟁ὶᐦᗘ䜢ᚓ䜛䛣䛸䛜㻌䛷䛝䜛ᡭἲ䛸䛧䛶ᩘከ䛟䛾◊✲㛤Ⓨ䛜䛺䛥䜜䛶䛔䜛㼇㻝㼉㼇㻞㼉䚹䛣䛾㻟䠊ᐇ㦂⤖ᯝ㻌⥺ᮦ䛿䝤䝻䞁䝈ἲ䛸ẚ㍑䛧䛶㧗⃰ᗘ䛾 㻿㼚 䜢 㻺㼎 䜈౪⤥䛷䛝䜛㻌 㻔㻝㻕཯ᛂ⏕ᡂ┦㻌䛣䛸䛜≉ᚩ䛷䛒䜛䛜䚸㻿㼚 䜢㓄⨨䛩䜛㡿ᇦ䛜ᚲせ䛺䛯䜑䚸⥺ᮦᮏ⥺ᮦ䛾⇕ฎ⌮㐣⛬䛷䛿䚸䐟㻿㼚 ⰺ䛜࿘ᅖ䛾 㻯㼡 ⿕そ䛸཯᩿㠃ᙜ䜚䛾 㻺㼎 ༨✚⋡䜢㧗䛟䛩䜛䛸 㻺㼎 ⰺ㛫䛾㊥㞳䛜ᑠ䛥䛟䛺䜚䚸ᛂ䛧䛶 㻯㼡㻙㻿㼚 ྜ㔠໬䛧䛯ᚋ䚸䐠㻯㼡㻙㻿㼚 ྜ㔠䛾 㻿㼚 䛜 㻺㼎 ⰺ䛸஺ὶᦆኻ䛜኱䛝䛟䛺䜚䜔䛩䛔ㄢ㢟䛜䛒䜛䚹㻌཯ᛂ䛧䛶 㻺㼎㻟㻿㼚 䛜⏕ᡂ䛩䜛䚹ᅗ 㻞㻔㼍㻕㻌 䛿 㻞㻝㻜䉝㽢㻞㻡㼔 䛸 㻠㻜㻜䉝㻌 ᮏሗ࿌䛷䛿䚸⮫⏺㟁ὶᐦᗘ䛸஺ὶᦆኻ䜢䝞䝷䞁䝇䛥䛫䛯⥺ᮦ䜢స〇䛩䜛䛣䛸䜢┠ⓗ䛸䛧䛶䚸㻺㼎 䛸 㻿㼚 䛾༢ⰺ䜢⤌ྜ䛫䛯༢㽢㻌 㻝㻞㼔 䛾䝤䝻䞁䝈໬ฎ⌮䜢᪋䛧䛯⥺ᮦ 㻭 䛾᩿㠃෗┿䜢♧䛩䚹⣧䛺ᵓ㐀䛾⥺ᮦ䜢ヨస䛧䚸䛭䛾཯ᛂ≧ែ䛸⮫⏺㟁ὶ≉ᛶ䛾㻢 ᮏ䛾 㻺㼎 ⰺ䛾୰ᚰ㒊䛻䛒䜛 㻿㼚 ⰺ䛿䚸࿘ᅖ䛾 㻯㼡 ⿕そ䛸཯ᛂ㛵ಀ䜢ほᐹホ౯䛧䛯䚹㻌䛧 㻯㼡㻟㻿㼚㻔䃔┦䠅䛜⏕ᡂ䛧䛶䛔䜛䛜䚸㻺㼎 ⰺ㛫䛾 㻯㼡 㒊䛻䛿 㻯㼡㻌䠄䃐┦䠅䛜ṧᏑ䛧䛶䛔䜛㼇㻝㼉㼇㻟㼉䚹䛣䜜䛿 㻿㼚 ⰺ䛛䜙䛾ᣑᩓ㊥㞳䛜㻞䠊ᐇ㦂᪉ἲ㻌኱䛝䛔䛣䛸䚸ཬ䜃⥺ᮦ 㻭 䛾 㻯㼡㻙㻿㼚 ⤌ᡂ䛜ప 㻿㼚 ⃰ᗘ䠄⣙ 㻞㻜㼍㼠㻑䠅㻌 㻔㻝㻕㻌 ౪ヨ⥺ᮦ㻌䛷䛒䜛䛯䜑䛸⪃䛘䜙䜜䜛䚹䛣䜜䛻ᑐ䛧䛶䚸᩿㠃 㻿㼚 ⃰ᗘ䛜⣙ᐇ㦂䛻⏝䛔䛯ෆ㒊ᣑᩓἲ 㻺㼎㻟㻿㼚 ⥺ᮦ䛾୺せㅖඖ䜢⾲ 㻝㻞㻡㼍㼠㻑䛾⥺ᮦ 㻮 䛷䛿ᆒ㉁䛺䃔┦䛷䛒䛳䛯䚹ᅗ 㻞㻔㼎㻕䛿 㻣㻜㻜䉝㽢㻌㻣㻞㼔 䛾 㻺㼎㻟㻿㼚 ⏕ᡂฎ⌮䜢᪋䛧䛯⥺ᮦ᩿㠃䛷䛒䜛䚹䛣䛾ฎ⌮᫬䛻♧䛩䚹⥺ᮦ䛿⥺ᚄ䛸᩿㠃ᵓᡂ䛜␗䛺䜛 㻞 ✀㢮䛷䛒䜛䚹䛭䛾ෆ㒊䛻䛿䚸㻺㼎 䛸 㻿㼚 䛾༢ⰺ䛜つ๎ⓗ䛻ከᩘ㓄⨨䛥䜜䛶䛚䜚䚸㛫䛷䛿ᮍ཯ᛂ䛺 㻺㼎 䛜኱䛝䛟ṧᏑ䛧䛶䛔䜛䚹䛣䜜䛻ᑐ䛧䛶⥺ᮦ⥺ᮦ䛻䜘䛳䛶⤌㎸䜏ⰺᩘ䛜␗䛺䜛䚹㻺㼎㻘㻌 㻿㼚 ༢ⰺ䛾┤ᚄ䛿䜋㻮 䛷䛿ṧ␃ 㻺㼎 䛜䜋䛸䜣䛹ㄆ䜑䜙䜜䛪䚸㻺㼎 ⰺ䛸཯ᛂ䛩䜛 㻯㼡㻙㻿㼚┦䛾 㻿㼚 ⃰ᗘ䛜ᣑᩓ㏿ᗘ䛻ᙳ㡪䛧䛶䛔䛯䚹㻌䜌ྠ➼䛷䛒䜛䚹㻌㻌㻌㻌 㻌 㻌 㻌 㻌 㻌 㻌 㼀㼍㼎㼘㼑㻌㻝㻌㻿㼜㼍㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㻺㼎㻟㻿㼚㻌㼣㼕㼞㼑㻚㻌㼃㼕㼞㼑㻌㻭
㼃㼕㼞㼑㻌㻮㻯㼡㻺㼎㻺㼎㼃㼕㼞㼑㻌㼐㼕㼍㼙㼑㼠㼑㼞䚷㻔㼙㼙㻕
䃥㻜㻚㻡
䃥㻝㻚㻜
㻯㼡㻌㼞㼍㼠㼕㼛
㻜㻚㻡㻜㻚㻡㻺㼎㻌㼏㼛㼞㼑㻌㼚㼡㼙㼎㼑㼞
㻣㻞
㻠㻣㻠
䃔
㻞㻣
㻞㻞
㻺㼎㻌㼏㼛㼞㼑㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌䠄P㼙㻕㻺㼎㻟㻿㼚㻿㼚㻌㼏㼛㼞㼑㻌㼚㼡㼙㼎㼑㼞
㻟㻣
㻝㻥㻥
㻞㻢
  㻿㼚㻌㼏㼛㼞㼑㻌㼐㼕㼍㼙㼑㼠㼑㼞㻌䠄P㼙㻕 㻞㻥㻌 ᅗ 㻝 䛻⥺ᮦ᩿㠃䛻䛚䛡䜛 㻺㼎 ⰺ䛸 㻿㼚 ⰺ䛾ᇶᮏ㓄⨨䜢♧䛩䚹⥺ᮦ䛿 㻺㼎 䛸 㻿㼚 䛾ྛ༢ⰺ䛛䜙䛺䜛」ྜᵓ㐀䛷䚸㻿㼚 ⰺ䛾࿘ᅖ䛻 㻺㼎 ⰺ䛜 㻢 ᮏ㓄⨨䛥䜜䛶䛔䜛䚹⥺ᮦ䛾 㻺㼎㻛㻯㼡㻛㻿㼚 䛾⤌ᡂẚ䚸ཬ䜃 㻺㼎 ⰺ㛫䛾㊥㞳䛿䚸㻺㼎㻘㻌㻿㼚 ⰺ䛾┤ᚄ䛸እ࿘㒊䛻⿕そ䛧䛯㻯㼡 䛾ཌ䛥䛻䜘䜚ไᚚ䛧䛯䚹㻌㻌㻺㼎 㼏㼛㼞㼑㻯㼡㻌㻿㼚 㼏㼛㼞㼑㻌㻌㻌㻌㻌㻌㻌 㻌 㻌 㻲㼕㼓㻚㻝㻌㼏㼛㼚㼒㼕㼓㼡㼞㼍㼠㼕㼛㼚㼍㼘㻌㼎㼍㼟㼑㻌㼡㼚㼕㼠㻌㼛㼒㻌㼟㼍㼙㼜㼘㼑㻌㼣㼕㼞㼑㻚㻌 㻌㻌㻌 ┤≧䛾⥺ᮦ䠄㻸㻩㻝㻞㻜㼙㼙䠅䜢▼ⱥ⟶䛻┿✵ᑒධ䛧䚸䝬䝑䝣䝹⅔
䛷⇕ฎ⌮䛧䛯䚹⇕ฎ⌮ ᗘ䛿䚸㻞㻝㻜䉝䚸㻠㻜㻜䉝䚸㻢㻡㻜㻙㻣㻡㻜䉝䛾 㻟ẁ㝵䛷䚸ྛ䚻䛾ಖᣢ᫬㛫䜢✀䚻ኚ໬䛥䛫䛯䚹㻌㻌㻌 㻔㻞㻕㻌 ⮫⏺㟁ὶᐦᗘ䛾 ᐃ᪉ἲ㻌㻌 ⮫⏺㟁ὶᐦᗘ 㻶㼏䠄㼚㼛㼚㻙㻯㼡䠅䛿䚸㛗䛥 㻠㻜㼙㼙 䛾▷ᑻ䝃䞁䝥䝹䜢⏝䛔䛶┤ὶᅄ➃Ꮚἲ䛷 ᐃ䛧 㻝㻚㻜䃛㼂㻛㼏㼙 䛾㟁ᅽ䛜Ⓨ⏕䛧䛯㻌 㻔㼍㻕㻌㻞㻝㻜䉝㽢㻞㻡㼔㻌㻗㻌㻠㻜㻜䉝㽢㻝㻞㼔㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻔㼎㻕㻌㻣㻜㻜䉝㽢㻣㻞㼔㻌㻌 㻌 㻌 㻌 㻌 㻌 㻲㼕㼓㻚㻌㻞㻌㻯㼞㼛㼟㼟㻙㼟㼑㼏㼠㼕㼛㼚㼍㼘㻌㼢㼕㼑㼣㻌㼛㼒㻌㼣㼕㼞㼑㻌㻭㻚㻌㻌㻌 ⇕ฎ⌮᮲௳䜢ኚ໬䛥䛫䛯⥺ᮦ 㻭㻘㻮 䛾 㻺㼎㻟㻿㼚 ⏕ᡂཌ䛥䜢 ᐃ䛧䚸䛭䛾⏕ᡂ㏿ᗘ䜢ホ౯䛧䛯䚹䛭䛾⤖ᯝ䚸㻺㼎 䛸཯ᛂ䛩䜛㻯㼡㻙㻿㼚 䛾 㻿㼚 ⃰ᗘ䛜㧗䛔⥺ᮦ 㻭 䛾᪉䛜 㻺㼎㻟㻿㼚 ⏕ᡂ㏿ᗘ䛿኱䛝䛟䚸䝤䝻䞁䝈໬䛾⇕ฎ⌮᮲௳䛾ᙳ㡪䛿ᑠ䛥䛛䛳䛯䚹䜎䛯䝤䝻䞁䝈ἲ⥺ᮦ㼇㻠㼉䛸ẚ㍑䛩䜛䛸䚸䛭䛾⏕ᡂ㏿ᗘ䛿⣙ 㻝 ᱆኱䛝䛔䜒䛾䛷䛒䛳䛯䚹㻌㻌 㻔㻞㻕㻌 ⮫⏺㟁ὶ≉ᛶ㻌㻌 ⇕ฎ⌮᮲௳䛜␗䛺⥺ᮦ 㻭㻘㻮 䛾⮫⏺㟁ὶᐦᗘ䜢 ᐃ䛧䛯⤖ᯝ䚸㻶㼏䠄㼚㼛㼚㻙㻯㼡䠅䛿⣙ 㻟㻠㻜㻭㻛㼙㼙㻞㻌 㻬㻝㻤㼀 䛷䛒䛳䛯䚹㻺㼎㻟㻿㼚 ᒙ䛾⏕ᡂ䛸ඹ䛻⮫⏺㟁ὶᐦᗘ䛜ྥୖ䛧䛯䛜䚸ヲ⣽䛿ᙜ᪥ሗ࿌䛩
䜛䚹㻌
㻌
ཧ⪃ᩥ⊩㻌
㼇㻝㼉㻌㻵㻚㻌㻼㼛㼚㼓㻌㼑㼠㻌㼍㼘㻚㻘㻌㻶㻚㻌㻹㼍㼠㼑㼞㻌㻿㼏㼕㻚㻘㻌㻠㻟㻘㻌㼜㻚㻌㻟㻡㻞㻞㻌㻔㻞㻜㻜㻤㻕㻚㻌㼇㻞㼉㻌㻼㻚㼆㼔㼍㼚㼓㻌㼑㼠㻌㼍㼘㻚㻘㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻌㻿㼏㼕㻚㻌㼀㼑㼏㼚㼛㼘㻚㻌㻞㻟㻘㻌㻜㻟㻠㻜㻝㻟㻔㻞㻜㻝㻜㻕㻚㻌㼇㻟㼉㻌㻯㻚㻿㼏㼔㼑㼡㼑㼞㼘㼑㼕㼚㻌㼑㼠㻌㼍㼘㻚㻘㻌㻭㼜㼜㼘㻚㻌㻼㼔㼥㼟㻚㻌㻸㼑㼠㼠㻚㻘㻌㻥㻜㻘㻌㻝㻟㻡㻞㻜㻌㻔㻌㻞㻜㻜㻣㻕㻚㻌㼇㻠㼉㻌㻵㻚㼃㻚㼃㼡㻌㼑㼠㻌㼍㼘㻚㻘㻌㻶㻚㻌㻭㼜㼜㼘㻚㻌㻼㼔㼥㼟㻚㻘㻌㻡㻠㻘㻌㻔㻝㻞㻕㻘㻌㼜㻚㻣㻝㻟㻥㻌㻔㻝㻥㻤㻟㻕㻚― 184 ―

第83回

2010年度秋季低温工学・超電導学会

2D-a04

Nb3Sn 線材

ᨺᑕග䜢⏝䛔䛯㻺㼎㻟㻿㼚⥺ᮦ䛾ṧ␃䜂䛪䜏ᐃ㻌㻾㼑㼟㼕㼐㼡㼍㼘㻌㼟㼠㼞㼍㼕㼚㻌㼙㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌㼒㼛㼞㻌㻺㼎㻟㻿㼚㻌㼣㼕㼞㼑㼟㻌㼎㼥㻌㼟㼥㼚㼏㼔㼞㼛㼠㼞㼛㼚㻌㼞㼍㼐㼕㼍㼠㼕㼛㼚㻌㻌ᑠ㯮㻌 ⱥಇ䠈ῐ㊰㻌 ᬛ䠈Ώ㎶㻌 ࿴㞝㻔ᮾ໭኱㻕㻧㻌 Ⳣ㔝㻌 ᮍ▱ኸ㻔ி኱㻕㻧㻌 ⏫ᒇ㻌 ಟኴ㑻㻔኱ྠ኱㻕㻧㻌 Ⳮⵦ㻌 ᩗஂ㻔ཎᏊຊᶵᵓ㻕㻧㻌㛗ᮧ㻌 ග㐀㻔ᛂ⏝⛉Ꮫ◊㻕㻌
OGURO Hidetoshi, AWAJI Satoshi, WATANABE Kazuo (Tohoku Univ.); SUGANO Michinaka (Kyoto Univ.);
MACHIYA Shutaro (Daido Univ.); SHOBU Akihisa (JAEA); OSAMURA Kozo (RIAS)
E-mail: h-oguro@imr.tohoku.ac.jp㻌㻝㻚㻌 䛿䛨䜑䛻㻌㻌 ᡃ䚻䛾䜾䝹䞊䝥䛷䛿䚸㔞Ꮚ䝡䞊䝮䜢⏝䛔䛯ᐇ⏝⥺ᮦ䛾ṧ␃䜂䛪䜏 ᐃ䜢ᩘከ䛟⾜䛳䛶䛝䛯[1, 2]䚹≉䛻䚸䜂䛪䜏䛻ᙅ䛔
Nb3Sn ㉸ఏᑟ⥺ᮦ䛻ᑐ䛧䛶䚸୰ᛶᏊ䜢⏝䛔䛯ṧ␃䜂䛪䜏ᐃ䜢ᩘከ䛟ᐇ᪋䛧䛶䛔䜛䚹୰ᛶᏊ䛿㏱㐣ຊ䛜ᙉ䛔䛯䜑䚸ཌ䛔Ᏻᐃ໬㖡䛻そ䜟䜜䛯 Nb3Sn 䛛䜙䛾ᅇᢡ⥺䜢ᚓ䜛䛣䛸䛾䛷䛝䜛ᙉຊ䛺䝒䞊䝹䛸䛺䜛䛯䜑䛷䛒䜛䚹䛣䜜䛻ᑐ䛧ᨺᑕග䛿䚸䛭䛾㏱㐣ຊ䛿୰ᛶᏊ䛻ẚ䜉䛶ᑠ䛥䛔䛜䚸ศゎ⬟䛾㠃䛷䛿ᅽಽⓗ䛻ඃ䜜䛶䛔䜛䚹ᨺᑕග䜢฼⏝䛧䛯ᐇ㦂䛿䚸䝔䞊䝥≧䛷㏱㐣㊥㞳䛾▷䛔㧗 ㉸ఏᑟ⥺ᮦ䛻ᑐ䛧䛶᪤䛻⾜䜟䜜䛶䛚䜚䚸㧗⢭ᗘ䛾ᐇ㦂䛜ฟ᮶䛶䛔䜛[3]䚹Nb3Sn ⥺ᮦ䛻ᑐ䛧䛶䜒䚸ᨺᑕග䛾㧗䛔ศゎ⬟䜢฼⏝䛧䛶䚸ෆ㒊䜂䛪䜏 ᐃ䜢⾜䛖䛣䛸䛜䛷䛝䜛䛸䚸䛭䛾䜂䛪䜏䛾ኚ໬䜢⢭ᗘ䜘䛟ㄪ䜉䜛䛣䛸䛜䛷䛝䜛䚹㻌 䛭䛣䛷௒ᅇ䛿䚸Nb3Sn ⥺ᮦ䜢ᨺᑕග䛷 ᐃ䛩䜛䛣䛸䜢ヨ䜏䛯䚹ᚓ䜙䜜䛯⤖ᯝ䜢⏝䛔䛶䚸Nb3Sn ⥺ᮦ䛾ᘬᙇ䜚䜂䛪䜏ୗ䛷䛾ෆ㒊䜂䛪䜏䛜䛹䛾⛬ᗘ䛾⢭ᗘ䛷 ᐃ䛷䛝䚸䛭䛣䛛䜙ఱ䛜ศ䛛䜛䛾䛛䜢㆟ㄽ䛩䜛䚹
㻌㻞㻚㻌 ᐇ㦂᪉ἲ㻌㻌 ᐃ䛻⏝䛔䜛ヨᩱ䛸䛧䛶䚸䛣䜜䜎䛷䛻୰ᛶᏊ➼䛷䛾 ᐃ⤒㦂䛾䛒䜛 CuNb ⿵ᙉ Nb3Sn ⥺ᮦ䜢⏝ព䛧䛯䚹䛣䛾䛯䜑䚸⤖ᯝ䛾ጇᙜᛶ䚸ᨺᑕග䛾᭷⏝ᛶ䛺䛹୰ᛶᏊᅇᢡ䛸䛾ẚ㍑䜢䛩䜛䛣䛸䛜ྍ⬟䛸䛺䜛䚹㻌 ᐃ䛿䚸SPring-8 䛾 BL46XU 䛷⾜䛳䛯䚹 ᐃ䜢⾜䛖䛻䛒䛯䜚䚸
Nb3Sn ⥺ᮦ䛾Ᏻᐃ໬ Cu ᒙ䜢㏱㐣䛧䛶䚸Nb3Sn 䛛䜙䛾ᅇᢡ⥺䜢ᚓ䜛䛯䜑䛻ᚲせ䛺 X ⥺䛾䜶䝛䝹䜼䞊䜢⟬ฟ䛧䛯䚹䛩䜛䛸䚸X ⥺䛾䜶䝛䝹䜼䞊䛜 50 keV ௨ୖ䛾䛸䛝䛻䚸50%௨ୖ䛾㏱㐣⋡䜢♧䛩䛣䛸䛜ศ䛛䛳䛯䚹䛣䛾䛯䜑䚸ᐇ㦂䛿 72 keV 䛸 58.5 keV 䛾᮲௳䛷⾜䛳䛯䚹㻌 ᐃ᫬䛿⥺ᮦ䛻ᘬᙇ䜚Ⲵ㔜䜢༳ຍ䛧䛯≧ែ䛷䚸Nb3Sn 䛾
320, 321 ᅇᢡ䛾 ᐃ䜢⾜䛳䛯䚹䛔䛪䜜䛾ᅇᢡ⥺䜒䚸⤫ィㄗᕪ䜢ᢚ䛘䜛䛯䜑䛻䚸2000 䜹䜴䞁䝖௨ୖ䛾䜹䜴䞁䝖ᩘ䛜ᚓ䜙䜜䜛䜘䛖᫬㛫䜢䛛䛡䛶 ᐃ䛧䛯䚹㻌 䜂䛪䜏䛾⟬ฟ䛻䛿䚸䜂䛪䜏䝊䝻䛾 Nb3Sn 䛾᱁Ꮚᐃᩘ䛜ᚲせ䛷䛒䜛䛯䜑䠈⥺ᮦ䛛䜙ྲྀ䜚ฟ䛧䛯䝣䜱䝷䝯䞁䝖䛾 ᐃ䜒⾜䛳䛯䚹䛣䛾 ᐃ⤖ᯝ䛛䜙᱁Ꮚᐃᩘ䜢ồ䜑䚸ྛ㠃䛾㠃㛫㝸䛛䜙ồ䜑䛯᱁Ꮚᐃᩘ䛸䛾ẚ㍑䛻䜘䜚䚸䜂䛪䜏䜢ィ⟬䛧䛯䚹㻌㻟㻚㻌 ᐇ㦂⤖ᯝ䛸⪃ᐹ㻌㻌 ⥺ᮦ䛾ᨺᑕග䜢⏝䛔䛯 ᐃ⤖ᯝ䜢ᅗ 1 䛻♧䛩䚹䛣䜜䛻♧䛩䜘䛖䛻䚸㧗䜶䝛䝹䜼䞊䛾ᨺᑕග䜢⏝䛔䜛䛣䛸䛷䚸⥺ᮦෆ㒊䛾
Nb3Sn 䛛䜙䛾ᅇᢡ⥺䜢 ᐃ䛷䛝䜛䛣䛸䛜ศ䛛䛳䛯䚹䛯䛰䛧䚸౑⏝䛩䜛䜶䝛䝹䜼䞊௨እ䛾 X ⥺䜢᏶඲䛻ᾘ䛩䛣䛸䛜䛷䛝䛺䛔䛯䜑䚸㯮୸䛷♧䛧䛯䜘䛖䛻䚸ู䛾䜶䝛䝹䜼䞊䛾 X ⥺䛛䜙䛾ᅇᢡ䝢䞊䜽䛜⌧䜜䛶䛔䜛䚹㻌 ᐃ⤖ᯝ䛛䜙䚸Nb3Sn 䛻ຍ䜟䜛䜂䛪䜏䜢䛭䜜䛮䜜䛾ᅇᢡ㠃䛤䛸䛻ィ⟬䛧䚸ᅗ 2 䛻♧䛧䛯䚹䛣䛾⤖ᯝ䛛䜙䚸 ᐃ䛥䜜䛯ṧ␃䜂䛪䜏䛾್䛜䚸୚䛘䛯ᘬᙇ䜚䜂䛪䜏䛾኱䛝䛥䛻ᑐᛂ䛧䛶䚸⥺ᙧ䛻ኚ໬䛩䜛ᵝᏊ䛜㧗⢭ᗘ䛷ほ 䛷䛝䛯䚹䛣䛣䛛䜙䚸ᨺᑕග䜢⏝䛔䜛䛣䛸䛷䚸Nb3Sn ⥺ᮦෆ㒊䛾 Nb3Sn 䛻Ⓨ⏕䛧䛶䛔䜛䜂䛪䜏䛾ኚ໬䜢䚸ヲ⣽䛻 ᐃ䛩䜛䛣䛸䛜ฟ᮶䜛䛣䛸䛜ศ䛛䛳䛯䚹㻌 ᐇ㦂⤖ᯝ䜘䜚䚸Nb3Sn 321 㠃䛸 320 㠃䛾㍈᪉ྥ䜂䛪䜏䜢⥺ᙧ

Fig. 1
wires.

The X-ray diffraction pattern of CuNb/Nb3Sn

Fig. 2 Residual strains of Nb3Sn wires as a function oftensile strain.

㏆ఝ䛧䛯᫬䛾ഴ䛝䛿䚸321 㠃䛷䛿 1.004䚸320 㠃䛿 0.984 䛸䛺䛳䛯䚹䛣䛾⤖ᯝ䛿䚸2 䛴䛾㠃䛻䛚䛡䜛䜂䛪䜏䛾ኚ໬䛿䚸⥺ᮦ඲య䛾ᘬᙇ䜚㔞䛸ྠ䛨䛷䛒䜛䛣䛸䛜ศ䛛䛳䛯䚹䜎䛯䚸ᶓ᪉ྥ䜂䛪䜏䛾㍈᪉ྥ䜂䛪䜏䛻ᑐ䛩䜛ኚ໬⋡(⦪ᶓẚ)䛿䚸321 㠃䛷䛿
0.340䚸320 㠃䛿 0.366 䛸䛺䜚䚸㍈䚸ᶓ᪉ྥ䛸䜒䛻㐪䛔䛜ぢ䜙䜜䛯䚹ᮏ㉁ⓗ䛻䛿䚸ྛ⤖ᬗ㠃䛻䛚䛡䜛ᅇᢡ䝢䞊䜽䛛䜙⟬ฟ䛧䛯ᙎᛶᐃᩘ䛻䛿㐪䛔䛜ぢ䜙䜜䜛䚹௒ᅇ䛾ᐇ㦂䛷ྛ㠃䛾䜂䛪䜏ኚ໬䛻㐪䛔䛜⏕䛨䛯䛾䛿䚸䛭䜜䛮䜜䛾㠃䛾ᙎᛶᐃᩘ䛾㐪䛔䛛䜙⏕䛨䛯䜒䛾䛰䛸⪃䛘䜙䜜䜛䚹㻌㻌ཧ⪃ᩥ⊩ 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌[1] H. Oguro et al.: J. Appl Phys. Vol. 101 (2007) 103913[2] H. Oguro et al.: Supercond. Sci. Technol., Vol. 23 (2010)
025034[3] M. Sugano et al.: Supercond. Sci. Technol., Vol. 22 (2009)
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第83回

2010年度秋季低温工学・超電導学会

2D-a05

Nb3Sn 線材

㻺㼎㻟㻿㼚 ⥺䛾᭤䛢䛻䜘䜛⮫⏺㟁ὶ್䛾ຎ໬ゎᯒ䝰䝕䝹
Analytical Model of Critical Current of a Bent Nb3Sn StrandᑠἨ ᚨ₩, ᮧୖ 㝧அ, ㎶ぢ ດ, ୰ᔱ ⚽ኵ 㸦ཎᏊຊᶵᵓ㸧㻷㻻㻵㼆㼁㻹㻵㻌㻺㼛㼞㼕㼗㼕㼥㼛㻘㻌㻹㼁㻾㻭㻷㻭㻹㻵㻌㻴㼍㼞㼡㼥㼡㼗㼕㻘㻌㻴㻱㻹㻹㻵㻌㼀㼟㼡㼠㼛㼙㼡㻘㻌㻺㻭㻷㻭㻶㻵㻹㻭㻌㻴㼕㼐㼑㼛㻌㻔㻶㻭㻱㻭㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼗㼛㼕㼦㼡㼙㼕㻚㼚㼛㼞㼕㼗㼕㼥㼛㻬㼖㼍㼑㼍㻚㼓㼛㻚㼖㼜㻌ཧ⪃ᩥ⊩㻝㻚㻺㻚㻌㻷㼛㼕㼦㼡㼙㼕㻘㻌㼑㼠㻌㼍㼘㻚㻘㻌㻵㻱㻱㻱㻌㼀㼞㼍㼚㼟㻚㻌㻭㻿㻯㻘㻌㻝㻝㻢㻘㻌㻞㻜㻜㻢㻘㻌㼜㻚㻤㻟㻝㻚㻌㻞㻚㻺㻚㻌㻷㼛㼕㼦㼡㼙㼕㻘㻌㼑㼠㻌㼍㼘㻚㻘㻌㻼㼥㼔㼟㼕㼏㼍㻌㻯㻘㻌㻠㻠㻢㻟㻙㻠㻢㻡㻘㻌㻞㻜㻜㻣㻌㼜㻚㻝㻟㻝㻢㻚㻌Stress V (MPa)

100
50
0
-50

-100
-0.5

0.0 Hp 0.5
Strain H (%)

1.0

1.5

Fig.1 The strain-stress (SS) curve of an annealed copper wire,measured by A. Nyilas. The thin solid line is the measured SS curvewith unloading. The stress of copper calculated when plastic strain, Hp,equals to 0.2% is also shown as a thick, dashed line.

Heat-treatment bobbin(Stainless steel;
Their diameters are larger
than the ITER bobbin.)

ITER bobbin

Fig.2 Nb3Sn strands mounted on bobbins for heat treatment and an
ITER bobbin. A Nb3Sn strand is dislodged from the upper bobbin andwound on the ITER bobbin to apply a uniform bending strain.

160
140
120
Critical current Ic(A)㻝㻚㻌 䛿䛨䜑䛻㻌᰾⼥ྜ⅔➼䛷౑⏝䛥䜜䜛 㻺㼎㻟㻿㼚 䡵䡬䢈䢚䢕䡡䡮䢙䡡䡶䢙䡸䢚䡫䢀䠄㻯㻵㻯䠅ᑟయ䛿䚸㐠㌿᫬䛻ᑟయ䛻ຍ䜟䜛ᕧ኱䛺㟁☢ຊ䛻䜘䛳䛶䚸ᑟయෆ㒊䛾⣲⥺䛜Ἴ≧䛾᭤䛢ኚᙧ䜢ཷ䛡䛶䚸⮫⏺㟁ὶᛶ⬟䛜ຎ໬䛩䜛㼇㻝㼉䚹䛭䛣䛷䚸ⴭ⪅䜙䛿䚸⣲⥺䛾᭤䛢ኚᙧ䜢⪃៖䛧䛶䚸㻯㻵㻯 ᑟయ䛾ᛶ⬟ホ౯䜢⾜䛖䛯䜑䛾ゎᯒ䢏䡿䢚䢕䜢㛤Ⓨ䛧䛯㼇㻝㼉䚹ᮏ䢏䡿䢚䢕䛷䛿䚸ィ⟬᫬㛫䛾ไ⣙䛛䜙䚸᭤䛢䜢ཷ䛡䜛⣲⥺䛾⮫⏺
㟁ὶ್䜢ゎᯒⓗ䛻ィ⟬䛩䜛䛣䛸䛸䛧䛯䚹㻌୍᪉䚸⣲⥺䛾⮫⏺㟁ὶ್䛿䚸䢈䡤䢓䢎䢙䢀㛫䛾ᶓ᩿᢬ᢠ䛜༑ศ䛻ప䛔䠄㻸㼛㼣㻌㼀㼞㼍㼚㼟㼢㼑㼞㼟㼑㻌㻾㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌㻹㼛㼐㼑㼘㻧㻌㻸㼀㻾㻹䠅䛛䚸༑ศ䛻㧗䛔䠄㻴㼕㼓㼔㻌㼀㼞㼍㼚㼟㼢㼑㼞㼟㼑㻌㻾㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌㻹㼛㼐㼑㼘㻧㻌㻴㼀㻾㻹䠅୧ᴟ➃䛾ሙྜ䛻䛾䜏ゎᯒⓗ䛻ホ౯䛷䛝䜛䚹䛭䛣䛷䚸㻾㼑㼒㻚㼇㻞㼉䛷䛿䚸ศᕸᐃᩘᅇ㊰䢏䡿䢚䢕䜢⏝䛔䛶⮫⏺㟁ὶ್䜢ᩘ್ィ⟬䛧䚸ᶓ᩿᢬ᢠ䛾ホ౯䜢ヨ䜏䛯㼇㻞㼉䚹䛯䛰䛧䚸⣲⥺ෆ䛾㖡䚸䢈䢚䢗䢙䡹䢚䛜↝䛝䛺䜎䛥䜜䛶䛔䜛䛣䛸䛛䜙䚸䛣䜜䜙䛾๛ᛶ䛿↓ど䛧䛯䚹䛧䛛䛧䚸ゎᯒ⤖ᯝ䛸ヨ㦂⤖ᯝ䛾ᕪ䛿኱䛝䛟䚸ᶓ᩿᢬ᢠ䛾ホ౯䛿⾜䛘䛺䛛䛳䛯䚹䛭䛣䛷䚸ゎᯒ䢏䡿䢚䢕䛾ᨵⰋ䜢ヨ䜏䜛䛣䛸䛸䛧䛯䚹㻌㻞㻚㻌 ᪂䛯䛺ゎᯒ䝰䝕䝹㻌᪂䛯䛺ゎᯒ䢏䡿䢚䢕䛷䛿䚸㖡䚸䢈䢚䢗䢙䡹䢚䛾๛ᛶ䠄ᙎረᛶ䠅䜒⪃៖䛧䚸䛣 䜜 䜙 䛾 ᛂ ຊ 䠉 ṍ 䠄 㻿㻿 䠅 ⥺ ᅗ 䛿 䚸 ⇕ ฎ ⌮ 䛧 䛯 㖡 ⥺ 䛾 䛭 䜜䠄㻲㻲㼕㼓㻚㻝䠅䛸➼䛧䛔䛸௬ᐃ䛧䛯䚹䛯䛰䛧䚸㻺㼎㻟㻿㼚 ⥺䛾⇕ฎ⌮䛻䜘䛳䛶䚸㖡䚸䢈䢚䢗䢙䡹䢚䛻༳ຍ䛥䜜䜛⇕ṍ䜒⪃៖䛧䛯䚹ᚑ䛳䛶䚸㖡䚸䢈䢚䢗䢙䡹䢚䛿䚸᭤䛢ṍ䛜䡺䢚䢗䛾ሙྜ䛷䜒ረᛶ䛧䛶䚸౛䛘䜀䚸㻲㼕㼓㻚㻝 䛻◚⥺䛷♧䛩 㻿㻿 ⥺ᅗ䠄ረᛶṍ䛜 㻜㻚㻞㻑䛾䛸䛝䛾౛䠅䛸䛺䜛䚹㻌䛥䜙䛻䚸䢈䡤䢓䢎䢙䢀䛿ᙎᛶኚᙧ䛩䜛䛜䚸ᘬᙇṍ䛜䛒䜛ᩜᒃ್䠄Hbrk䠅䜢㉸䛘䛯䛸䛣䜝䛷᩿⥺䛧䛶䚸๛ᛶ䛜䡺䢚䢗䛻䛺䜛䛸௬ᐃ䛧䛯䚹㻌௨ୖ䛾௬ᐃ䛻ຍ䛘䛶ᚑ᮶䛹䛚䜚䢆䢚䢔䡭ᮦ䛿ᙎᛶኚᙧ䛩䜛䛸௬ᐃ䛧䚸ᱱ䢏䡿䢚䢕䜢⏝䛔䛶᭤䛢ṍ䜢ィ⟬䛧䚸㻸㼀㻾㻹䚸㻴㼀㻾㻹 䛻ᚑ䛳䛶䚸⣲⥺䛾⮫⏺㟁ὶ್䜢ィ⟬䛩䜛䛣䛸䛸䛧䛯䚹㻌㻟㻚㻌 ゎᯒ䝰䝕䝹䛾᳨ド䛸⪃ᐹ㻌ゎᯒ䢏䡿䢚䢕䛾ጇᙜᛶ䜢᳨ド䛩䜛䛯䜑䛻䚸ゎᯒ⤖ᯝ䜢ヨ㦂⤖ᯝ䛸ẚ㍑䛧䛯䚹⣲⥺䛻ᶓⲴ㔜䜢ຍ䛘䜛䛣䛸䛷⣲⥺䜢᭤䛢䛶⮫⏺㟁ὶ್䜢 ᐃ䛩䜛ヨ㦂䛷䛿䚸ᶓⲴ㔜䛛䜙᭤䛢ṍ䜢ồ䜑䜛㐣⛬䛷ㄗᕪ䛜⏕䛨䜛ྍ⬟ᛶ䛜䛒䜛䚹䛣䛾䛯䜑䚸⣲⥺䜢᪤▱䛾᭤⋡䛻ண䜑᭤䛢䜛䛣䛸䛷᭤䛢ṍ䜢༳ຍ䛩䜛᪉ἲ䜢᥇⏝䛧䛯䚹䛩䛺䜟䛱䚸㻲㻲㼕㼓㻚㻞 䛻♧䛩䜘䛖䛻䚸┤ᚄ䛾␗䛺䜛䢊䢚䢇䢚䢙䛻⣲⥺䜢ᕳ䛝௜䛡䛶⇕ฎ⌮䛧䛶䚸⇕ฎ⌮ᚋ䛻௚䛾䢊䢚䢇䢚䢙䠄㻵㼀㻱㻾 䢊䢚䢇䢚䢙䠅䛻⣲⥺䜢ᕳ䛝┤䛧䛯ᚋ䚸⮫⏺㟁ὶ್䜢 ᐃ䛧䛯䚹䛺䛚䚸ヨ㦂䛷౑⏝䛧䛯⣲⥺䛿䚸୰ᚰ䡻䢖䢅䡮䢀䢚䠄㻯㻿䠅䢏䡿䢚䢕䡡䡶䡮䢕⏝䛻㛤Ⓨ䛧䛯┤ᚄ㻜㻚㻤㻝㼙㼙 䛾䢈䢚䢗䢙䡹䢚ἲ 㻺㼎㻟㻿㼚 ⥺䛷䛒䜛㼇㻞㼉䚹㻌㻲㼕㼓㻚㻟 䛻 ゎ ᯒ ⤖ ᯝ 䛸 ヨ 㦂 ⤖ ᯝ 䛾 ẚ ㍑ 䜢 ♧ 䛩 䚹 ゎ ᯒ 䛿
Hbrk=0.5%ཬ䜃 1.0%䛾ሙྜ䛻䛴䛔䛶ᐇ᪋䛧䛯䚹ᅗ䜘䜚䚸᪂䛯䛺䢏䡿䢚䢕䛷 㻴㼀㻾㻹 䜢௬ᐃ䛩䜛䛣䛸䛷䚸ゎᯒ䛻䜘䛳䛶ヨ㦂⤖ᯝ䜢Ⰻ䛟ᶍᨃ䛷䛝䜛䛣䛸䛜ศ䛛䛳䛯䚹䛺䛚䚸ヨ㦂䛧䛯⣲⥺䛜 㻴㼀㻾㻹 䛻ᚑ䛖䛣䛸䛿䚸䢈䢚䢗䢙䡹䢚䛾ẚ᢬ᢠ䛛䜙ጇᙜ䛷䛒䜛㼇㻞㼉䚹㻌䛥䜙䛻䚸ᮏ䢏䡿䢚䢕䜢⏝䛔䛶䚸୍ᗘ᭤䛢䛯⣲⥺䜢᭤䛢ᡠ䛧䛯䛸䛝䛾⮫⏺㟁ὶ್䜒ィ⟬䛧䛯䚹⣬㠃䛾㒔ྜୖヲ⣽䛿┬䛟䛜䚸᭱ึ䛾᭤䛢䛻䜘䛳䛶㖡䚸䢈䢚䢗䢙䡹䢚䛜ረᛶኚᙧ䠄୰❧⥺䛜⛣ື䠅䛧䛶⣲⥺䛜ఙ䜃䚸᭤䛢ᡠ䛧䛯᫬䛻䛿㖡䚸䢈䢚䢗䢙䡹䢚䛜ᙎᛶኚᙧ䛩䜛䛯䜑䚸ఙ䜃䛜ಖᏑ䛩䜛䛣䛸䜒ศ䛛䛳䛯䚹䛣䜜䛻䜘䜚䚸⮫⏺㟁ὶ್䛜᭤䛢๓䛻ẚ䜉䛶ྥୖ䛩䜛ྍ⬟ᛶ䛜䛒䜛䚹㻌㻠㻚㻌 䜎䛸䜑㻌
㖡࡜㺪㺼㺹㺻㺛㺼ࡢረᛶኚᙧࠊཬࡧ㺪㺆㺵㺰㺻㺢᩿⥺ࢆ⪃៖ࡋࡓ᪂ࡓ
࡞㺱㺡㺼㺷ࢆ⪃᱌ࡋࠊ୍ᵝ࡟᭤ࡆࡓ䢈䢚䢗䢙䡹䢚ἲ㻺㼎㻟㻿㼚⥺ࡢ⮫⏺㟁ὶ್ࡢ ᐃ⤖ᯝ࡜ゎᯒ⤖ᯝࢆẚ㍑ࡋࡓࠋ୧⪅ࡣⰋࡃ୍⮴ࡋࠊ㺱㺡㺼㺷ࡢጇᙜᛶࢆ᳨ドࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ

12T
LTRM
Hbrk=0.5%

100
80
60

HTRM

Hbrk=1%40
20
020 30 40 50 60 70 80 90 100
Radius before bending Rb(mm)Fig.3 The measured and calculated critical currents of the CS model
coil strand at 12T and 4.2K. The open circles are measured values.
Solid lines are the calculated results assuming HTRM and Hbrk=0.5%
and 1.0%. Dashed lines are the ones assuming LTRM and Hbrk=0.5%
and 1.0%.

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第83回

2010年度秋季低温工学・超電導学会

2D-a06

Nb3Sn 線材

㻵㼀㻱㻾㻌㼀㻲 䝁䜲䝹⏝ 㻺㼎㻟㻿㼚 ⣲⥺䛾ホ౯ᢏ⾡㻌㻱㼢㼍㼘㼡㼍㼠㼕㼛㼚㻌㼠㼑㼏㼔㼚㼕㼝㼡㼑㻌㼛㼒㻌㻺㼎㻟㻿㼚㻌㼟㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼟㼠㼞㼍㼚㼐㻌㼒㼛㼞㻌㻵㼀㻱㻾㻌㼀㻲㻌㼏㼛㼕㼘㻌

critical current Ic [A]

43.5 mm㻌ྡཎ㻌 ၨ༤䠈ᕸ㇂㻌 ჆ᙪ㻘㻌 ♒㔝㻌 㧗᫂㻘㻌 ᑠἨ㻌 ᚨ₩㻘㻌 ℈⏣㻌 ୍ᘺ㻘㻌 ᯇ஭㻌 㑥ᾈ㻘㻌 ㎶ぢ㻌 ດ㻘㻌 ྜྷᕝ㻌 ṇᩄ㻘㻌 Ᏹ㔝㻌 ᗣᘯ㻘㻌ᢲษ㻌 㞞ᖾ㻘㻌 ᕝᓮ㻌 ຮ㻘㻌 ⸨⏣㻌 ᩔ㻘㻌 㛵㻌 ⚽୍㻘㻌 㛵㻌 ṇ⏨㻘㻌 ᾏ⪁⃝㻌 ᪼㻘㻌 ஭ཱྀ㻌 ᑗ⚽㻘㻌 㧗ᶫ㻌 Ⰻ࿴㻘㻌 ୰ᔱ㻌 ⚽ኵ䠄ཎᏊຊᶵᵓ䠅㻌㻺㻭㻮㻭㻾㻭㻌㼅㼛㼟㼔㼕㼔㼕㼞㼛䠈㻌 㻺㼁㻺㻻㼅㻭㻌㼅㼛㼟㼔㼕㼔㼕㼗㼛㻘㻌㻵㻿㻻㻺㻻㻌㼀㼍㼗㼍㼍㼗㼕㻘㻌㻷㻻㻵㼆㼁㻹㻵㻌㻺㼛㼞㼕㼗㼕㼥㼛㻘㻌㻴㻭㻹㻭㻰㻭㻌㻷㼍㼦㼡㼥㼍㻘㻌㻹㻭㼀㻿㼁㻵㻌㻷㼡㼚㼕㼔㼕㼞㼛㻘㻌㻴㻱㻹㻹㻵㻌㼀㼟㼡㼠㼛㼙㼡㻘㻌㼅㻻㻿㻴㻵㻷㻭㼃㻭㻌㻹㼍㼟㼍㼠㼛㼟㼔㼕㻘㻌㼁㻺㻻㻌㼅㼍㼟㼡㼔㼕㼞㼛㻘㻌㻻㻿㻴㻵㻷㻵㻾㻵㻌㻹㼍㼟㼍㼥㼡㼗㼕㻘㻌㻷㻭㼃㻭㻿㻭㻷㻵㻌㼀㼟㼡㼠㼛㼙㼡㻘㻌㻲㼁㻶㻵㼀㻭㻌㻭㼠㼟㼡㼟㼔㼕㻘㻌㻿㻱㻷㻵㻌㻿㼥㼡㼕㼏㼔㼕㻘㻌㻿㻱㻷㻵㻌㻹㼍㼟㼍㼛㻘㻌㻱㻮㻵㻿㻭㼃㻭㻌㻺㼛㼎㼛㼞㼡㻘㻌㻵㻳㼁㻯㻴㻵㻌㻹㼍㼟㼍㼔㼕㼐㼑㻘㻌㼀㻭㻷㻭㻴㻭㻿㻴㻵㻌㼅㼛㼟㼔㼕㼗㼍㼦㼡㻘㻌㻺㻭㻷㻭㻶㻵㻹㻭㻌㻴㼕㼐㼑㼛㻌㻔㻶㻭㻱㻭㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼚㼍㼎㼍㼞㼍㻚㼥㼛㼟㼔㼕㼔㼕㼞㼛㻬㼖㼍㼑㼍㻚㼓㼛㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
䜘䛖䛻䠉㻜㻚㻜㻢㻡㻑䛾ᅽ⦰䜂䛪䜏䛿 㻵㼏 䜢 㻝㻜㻭 ⛬ᗘపୗ䛥䛫䜛䛣䛸ᅜ㝿⇕᰾⼥ྜᐇ㦂⅔䠄㻵㼀㻱㻾䠅䛷䛿䚸䝖䝻䜲䝎䝹☢ሙ䠄㼀㻲䠅䝁䛻䛺䜚䚸䛣䜜䛜ཎᅉ䛷䚸ཎᏊຊᶵᵓ䛸䝯䞊䜹䛾㛫䛻 㻵㼏 䛾ᕪ␗䛜䜲䝹⏝䛻 㻺㼎㻟㻿㼚 ⣲⥺䜢⣙ 㻤㻟㻘㻜㻜㻜㼗㼙䠄᪥ᮏศᢸศ䛿 㻞㻡㻑䠅䚸୰⏕䛨䛯䛸⪃䛘䜙䜜䜛䚹䛣䛾䛣䛸䛛䜙䚸ཎᏊຊᶵᵓ䛸ྛ♫䛜ྠ䛨䝉䝑䝔䜱䞁䜾᪉ἲ䜢⾜䛔䚸㻵㼏 ್䛜㧗䜑䛻䛺䜛ഴྥ䛜䛺䛟䛺䛳䛯䚹㻌ᚰ䝋䝺䝜䜲䝗䠄㻯㻿䠅⏝䛻⣙ 㻞㻢㻘㻜㻜㻜㼗㼙䠄᪥ᮏศᢸศ䛿 㻝㻜㻜㻑䠅䛜౑㻌䜟䜜䚸ཎᏊຊᶵᵓ䛿᪥ᮏ䛾ᅜෆᐇ᪋ᶵ㛵䛸䛧䛶䛣䜜䜙䛾ㄪ㐩㻠䠊䜎䛸䜑㻌
䜢⾜䛳䛶䛔䜛䚹኱㔞䛻〇స䛥䜜䜛⣲⥺䛾ရ㉁⟶⌮䛜㔜せ䛸䛺䜛䛯䜑䚸䜎䛪 㻵㼀㻱㻾 ཧຍᅜ䛾ྛヨ㦂ᶵ㛵䛷⮫⏺㟁ὶ䠄㻵㼏䠅䛺䛹㻺㼎㻟㻿㼚 ⣲⥺䛾⮫⏺㟁ὶ䜢 ᐃ䛩䜛㝿䛻䚸ഹ䛛䛺䝉䝑䝔䜱䞁䛾䝧䞁䝏䝬䞊䜽ヨ㦂䛜⾜䜟䜜䚸 ᐃ䛾ጇᙜᛶ䛜☜ㄆ䛥䜜䛯䜾᪉ἲ䛾㐪䛔䛻䜘䛳䛶䚸 ᐃ್䛻ᕪ␗䛜⏕䛨ᚓ䜛䛣䛸䜢㏙䜉㼇㻝㼉䚹䛧䛛䛧䛭䛾ᚋ䚸᪥ᮏ䛷 㼀㻲 ⏝⣲⥺䛜኱㔞⏕⏘䛥䜜䜛୰䚸䝯䛯䚹つ᱁䛾⟇ᐃ䜔䚸」ᩘ䛾ヨ㦂ᶵ㛵䛷┦஫ẚ㍑䜢ᐇ᪋䛩䜛䞊䜹䛾 㻵㼏 ್䛾ጇᙜᛶ䜢☜ㄆ䛩䜛䛯䜑䛻䚸ཎᏊຊᶵᵓ䛷䝎䝤㝿䛻䛿䚸ᡭ㡰䛾ヲ⣽䛺ྲྀ䜚Ỵ䜑䛻ὀព䛩䜛ᚲせ䛜䛒䜛ࠋ䝹䝏䜵䝑䜽䛾ᐇ᪋䜢㐍䜑䛯䛸䛣䜝䚸ཎᏊຊᶵᵓ䛾᪉䛜㧗䜑䛾 㻵㼏್䛻䛺䜛ഴྥ䛜ぢ䜙䜜䛯䚹ᮏሗ࿌䛷䛭䛾ཎᅉ䜢㏙䜉䚸㻵㼏 ᐃ(a) Photograph of strand and holder for I c measurement䛻䛚䛡䜛䝉䝑䝔䜱䞁䜾䛾㞴䛧䛥䛻䛴䛔䛶ᚓ䜙䜜䛯▱ぢ䜢♧䛩䚹㻌
terminal(+)
㻌㻞䠊䝃䞁䝥䝹‽ഛ᪉ἲ㻌magneticfield(b) Cross-sectional view㻵㼏 ᐃ䛿 㻵㻱㻯 つ᱁䜢ඖ䛻 㻵㼀㻱㻾 ᶵᵓ䛜ᐃ䜑䛯᪉ἲ䛷⾜䛳
of bobbin and strand
䛶䛔䜛䚹㻵㼏 ᐃ⏝䛾἞ල䜢 㻲㼕㼓㻚㻝㻔㼍㻕䛻♧䛩䚹⣲⥺䜢ᕳ䛝௜䛡䜛
strand(10 turns)䝪䝡䞁䛿䚸⣲⥺䛸䛾⇕཰⦰ᕪ䛜ᑠ䛥䛔 㼀㼕㻙㻢㻭㼘㻙㻠㼂 〇䛷䛒䜛䚹⇕ฎ⌮ ᗘ䛿㼼㻡䉝䛾ᆒ୍ᗘ䜢ಖ䛱䚸┿✵୰䜒䛧䛟䛿୙άᛶterminal(-)
gap䜺䝇୰䛷⇕ฎ⌮䛩䜛䚹⇕ฎ⌮ᚋ䚸䝪䝡䞁䛸⣲⥺䛾㛫䛻ⷧ䛔䝅
≒0.01mm䞊䝖䛺䛹䜢㏻䛧䚸⣲⥺䛜䝪䝡䞁䛻ᅛ╔䛧䛶䛔䛺䛔䛣䛸䜢☜ㄆ䛩 electromagnetic䜛䚹䛭䛧䛶䚸⣲⥺䜢䝪䝡䞁䛻ᢲ䛥䛘䛯≧ែ䛷䚸➃㒊䜢ୖୗ䛾㖡
force
strand (ȭ0.82 mm)
䝸䞁䜾䛻༙⏣௜䛡䛩䜛䚹㏻㟁᪉ྥ䛿䚸⣲⥺䛜䝪䝡䞁䛻᥋㏆䛧

not contacting on bobbin (solid line circle)ᅽ⦰᪉ྥ䛾ຊ䛜䛛䛛䜛䛛䚸䝪䝡䞁䛛䜙㞳䜜䛶ᘬᙇ䜚᪉ྥ䛾ຊcontacting on bobbin (broken line circle)
15.0
mm
1.0
mm
䛜䛛䛛䜛䛛䛾䛹䛱䜙䛛䛜䛒䜛䛜䚸ᚋ⪅䛾ሙྜ䚸㻵㼏 ್䛻䜘䛳䛶ṍ䜏䛜ኚ䜟䜛䛣䛸䛻䛺䛳䛶䛧䜎䛖䛯䜑䚸㏻㟁᪉ྥ䛿⣲⥺䛻ᅽ⦰᪉groovetape for settingྥ䛾ຊ䛜䛛䛛䜛䜘䛖䛻䛩䜛䚹㻌 bobbin㻌㻟䠊⮫⏺㟁ὶ್䛾ᕪ␗䛾ཎᅉ㻌㻲㼕㼓㻚㻝㻌㻴㼛㼘㼐㼑㼞㻌㼠㼛㻌㼙㼑㼍㼟㼡㼞㼑㻌㼠㼔㼑㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㻔㼍㻕㻌㼍㼚㼐㻌ୖグ䛾᪉ἲ䛷 㻵㼏 䛾䝎䝤䝹䝏䜵䝑䜽䜢㐍䜑䜛䛻䛴䜜䛶䚸ཎᏊ㻯㼞㼛㼟㼟㻙㼟㼑㼏㼠㼕㼛㼚㼍㼘㻌㼢㼕㼑㼣㻌㼛㼒㻌㼎㼛㼎㼎㼕㼚㻌㼍㼚㼐㻌㼟㼠㼞㼍㼚㼐㻌㻔㼎㻕㻚㻌ຊᶵᵓ䛷 ᐃ䛧䛯 㻵㼏 䛜䚸㼀㻲 ⏝⣲⥺䜢౪⤥䛧䛶䛔䜛 㻭 ♫䚸㻮 ♫
300
䛾 ᐃ್䜘䜚䜒 㻝㻜㻭 ๓ᚋ㧗䜑䛻䛺䜛ഴྥ䛜ぢ䜙䜜䛯䚹䛭䛾ཎᅉ䛿ୗグ䛾䜘䛖䛻᥎ 䛥䜜䜛䚹㻌㻲㼕㼓㻝㻚㻔㼍㻕䛾୍㒊䜢ᣑ኱䛧䛯᩿㠃䛾ᶍᘧᅗ䜢 㻲㼕㼓㻚㻝㻔㼎㻕䛻♧䛩䚹'Ic(A)=10A
ᅗ䛾䜘䛖䛻䚸⣲⥺䜢཰䜑䜛⁁䛾῝䛥䛿⣲⥺ᚄ䜘䜚䜒ഹ䛛䛻῝䛟䚸'Ic(B) =12A
200⣲⥺䛾䝉䝑䝔䜱䞁䜾᪉ἲ䛻䜘䛳䛶䚸⣲⥺䛸䝪䝡䞁䛾㛫䛻㝽㛫䛜⏕䛨䜛ሙྜ䠄ᐇ⥺෇䠅䜒䛒䜜䜀䚸⣲⥺䛜䝪䝡䞁䛻᥋䛩䜛ሙྜ䠄◚⥺෇䠅䜒䛒䜚ᚓ䜛䚹⣲⥺䛜ᐇ⥺෇䛾䜘䛖䛻⁁䛾᭱䜒እഃ䛻
'H=0.065%
䛒䜛ሙྜ䚸◚⥺෇䛻ẚ䜉䛶⣙ 㻜㻚㻜㻝㼙㼙 እഃ䛻఩⨨䛩䜛䚹◚⥺
100෇䛾䜘䛖䛻⣲⥺䛸䝪䝡䞁䛜᥋䛧䛶䛔䜛ሙྜ䚸㏻㟁䛻䜘䜚⣲⥺䛻㟁☢ຊ䛜䛛䛛䛳䛶䜒䝪䝡䞁䛷ᨭ䛘䜙䜜䜛䛯䜑䚸⣲⥺䛻ᅽ⦰ṍ
supplier A
supplier B䜏䛿ຍ䜟䜙䛺䛔䚹ཎᏊຊᶵᵓ䛷䛿ᣦ䛷⣲⥺䜢䝪䝡䞁䛻ᢲ䛥䛘
12T, 4.2K
௜䛡䛶➃㒊䜢༙⏣௜䛡䛧䛯䛯䜑䚸䛣䛾≧ែ䛻㏆䛔䛸᥎ 䛥䜜0䜛䚹୍᪉䚸ᐇ⥺෇䛾䜘䛖䛻⣲⥺䛜⁁䛾᭱እ㒊䛻䛒䜛ሙྜ䚸㏻-0.6 -0.4 -0.2
00.2
㟁䛻䜘䜚⣲⥺䛿䝪䝡䞁䛻᥋ゐ䛩䜛䜎䛷ᅽ⦰ṍ䜏䛜䛛䛛䜚ᚓ䜛䚹
axial strain H [%]㻭 ♫䛿䜹䝥䝖䞁䝔䞊䝥䛷䚸㻮 ♫䛿䝅䞊䝹䝔䞊䝥䛷⣲⥺䜢䝪䝡䞁㻲㼕㼓㻚㻞㻌㻯㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼍㼓㼍㼕㼚㼟㼠㻌㼍㼤㼕㼍㼘㻌㼟㼠㼞㼍㼕㼚㻌㼛㼚㻌㼑㼍㼏㼔㻌㼟㼡㼜㼜㼘㼕㼑㼞䛻ᢲ䛥䛘௜䛡䛶➃㒊䜢༙⏣௜䛡䛧䛯䛯䜑䚸䛣䛾≧ែ䛻㏆䛔䛸᥎ 䛥䜜䜛䚹䛣䛾䛸䛝⣲⥺䛜ཷ䛡䜛ᅽ⦰ṍ䜏䛿⣙䠉㻜㻚㻜㻢㻡㻑䛸ཧ⪃ᩥ⊩㻌ぢ✚䜒䜙䜜䚸䛭䛾ศ䛰䛡 㻵㼏 䛿పୗ䛧ᚓ䜛䚹㻌㻝㻚㻌 㻹㼍㼠㼠㼔㼑㼣㻌㻯㻚㻌㻶㼑㼣㼑㼘㼘㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻵㻱㻱㻱㻌㼀㼞㼍㼚㼟㻚㻌㻭㼜㼜㼘㻚㻌㻿㼡㼜㻚㻘㻌㼂㼛㼘㻚㻌㻞㻜㻘㻌㻲㼕㼓㻚㻞 䛻 㻭 ♫䛸 㻮 ♫䛾⣲⥺䛾 㻝㻞㼀㻘㻌㻠㻚㻞㻷 䛻䛚䛡䜛 㻵㼏 䛾ṍ䜏㻺㼛㻚㻟㻘㻌㻔㻞㻜㻝㻜㻕㻌㼜㼜㻚㻝㻡㻜㻜㻙㻝㻡㻜㻟≉ᛶ䜢♧䛩䚹ึᮇ䜂䛪䜏䛜䠉㻜㻚㻞㻡㻑๓ᚋ䛷䛒䜛䛸䛩䜛䛸䚸ᅗ䛾― 187 ―

第83回

2010年度秋季低温工学・超電導学会

2D-a07

電力変換貯蔵䝣䝷䜲䝩䜲䞊䝹㟁ຊ㈓ⶶ⿦⨨䛾ᵓ㐀ゎᯒ䛸ẚ㍑㻌
㻿㼠㼞㼡㼏㼠㼡㼞㼍㼘㻌㻭㼚㼍㼘㼥㼟㼕㼟㻌㼍㼚㼐㻌㻯㼛㼙㼜㼍㼞㼕㼟㼛㼚㻌㼛㼒㻌㻲㼘㼥㼣㼔㼑㼑㼘㻌㻱㼚㼑㼞㼓㼥㻌㻿㼠㼛㼞㼍㼓㼑㻌㻿㼥㼟㼠㼑㼙㻌㻟䠊ᅇ㌿ᐇ㦂㻌
㻲㼕㼓㻚㻞 䛻ᥦ᱌ᆺỌஂ☢▼㍈ཷ䛸㉸㟁ᑟ㍈ཷ䛷䛾䝣䝸䞊䝷䞁≉ᛶ⤖ᯝ䜢♧䛩䚹㻲㼕㼓㻚㻞 䛻䛚䛡䜛䝣䝸䞊䝷䞁᫬㛫䛿⣙ 㻠㻜 ⛊䛷䛒䜎䜚ኚ໬䛿ぢ䜙䜜䛺䛔䚹ᅇ㌿᫬䛾᣺ື䛿㉸㟁ᑟ㍈ཷ௜㏆䛷 㻜㻚㻞㻡㼙㼙㼛㻙㼜 ⛬ᗘ௨ୗ䠈Ọஂ☢▼㍈ཷ௜㏆䛷 㻜㻚㻟㻜㼙㼙㼛㻙㼜 ⛬ᗘ௨ୗ䛻ᢚ䛘䜛䛣䛸䛜䛷䛝䛯䚹᣺ື≉ᛶ䛻䛚䛔䛶䛿 㻞㻘㻜㻜㻜䡚㻟㻘㻜㻜㻜㼞㼜㼙 ௜㏆䛷ඹ᣺䛜Ⓨ⏕䛧䛶䛔䜛䚹㻌㻲㼕㼓㻚㻟 䛻㈇Ⲵ䛻▐᫬㟁ᅽపୗ䜢⏕䛨䛥䛫䛯䛸䛝䛾䝣䝷䜲䝩䜲䞊䝹ᨺ㟁≧ែ䜢♧䛩䚹䝣䝷䜲䝩䜲䞊䝹䛾ᅇ㌿ᩘ䛿 㻠㻘㻟㻜㻜㼞㼜㼙㻌㻾㼛㼠㼍㼠㼕㼛㼚㼍㼘㻌㻿㼜㼑㼑㼐㻌㼇㼞㼜㼙㼉

㻜㻚㻤

㻠㻜㻜㻜
㻞㻜㻜㻜
㻜
㻜

㻝㻜

㻟㻜

㻠㻜

㻡㻜

㻢㻜

㻣㻜

㻤㻜

㻥㻜

㻢㻜

㻣㻜

㻤㻜

㻥㻜

㻢㻜

㻣㻜

㻤㻜

㻥㻜

㻜㻚㻠
㻜
㻙㻜㻚㻠
㻙㻜㻚㻤
㻜

㻮㼛㼠㼠㼛㼙
㻰㼕㼟㼜㼘㼍㼏㼑㼙㼑㼚㼠㻌㼇㼙㼙㼉㻞㻜㼀㼕㼙㼑㻌㼇㼟㼑㼏㼉

㻝㻜

㻞㻜

㻟㻜

㻠㻜

㻡㻜

㼀㼕㼙㼑㻌㼇㼟㼑㼏㼉

㻜㻚㻤
㻜㻚㻠
㻜
㻙㻜㻚㻠
㻙㻜㻚㻤
㻜

㻝㻜

㻞㻜

㻟㻜

㻠㻜

㻡㻜

㼀㼕㼙㼑㻌㼇㼟㼑㼏㼉

(c)

(d)

(e)

Power Voltage[V]

(b)

6

6

Rotating
Speed[rpm](a)

Load Voltage[V]㻲㼕㼓㻚㻞㻌㻾㼛㼠㼍㼠㼕㼛㼚㼍㼘㻌㻿㼜㼑㼑㼐㻌㼍㼚㼐㻌㼂㼕㼎㼞㼍㼠㼕㼛㼚㻌㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌

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Top
Displacement[mm]㻞䠊⿦⨨ᵓ㐀㻌
㻲㼕㼓㻚㻝 䛿䝏䝱䞁䝞䞊ෆ䛾౑⏝䛧䛯㟁ຊ㈓ⶶ⏝䝣䝷䜲䝩䜲䞊䝹䝅䝇䝔䝮ᵓ㐀䜢♧䛩䚹෭෾ྎ䛾ୖ䛻㖡〇䛾ᅵྎ䛸⫼ᯈ䛜䛒䜚䠈ୖ䛛䜙Ọஂ☢▼㍈ཷ䠈Ⓨ㟁㟁ືᶵ䠈䝣䝷䜲䝩䜲䞊䝹䠈㉸㟁ᑟ㍈ཷ䛜ྲྀ䜚௜䛡䜙䜜䛶䛔䜛䚹ᅇ㌿෇┙䠄䝣䝷䜲䝩䜲䞊䝹䠅䛿㉸㟁ᑟ㍈ཷ䛾Ọஂ☢▼䛾┿ୖ䛻ྲྀ䜚௜䛡䜙䜜䛶䛔䜛䚹Ⓨ㟁㟁ືᶵ䛾Ọஂ☢▼䜒䝣䝷䜲䝩䜲䞊䝹䛻ྲྀ䜚௜䛡䜙䜜䛶䛔䜛䚹䝻䞊䝍ୖ㒊䛿Ọஂ☢▼㍈ཷ䠈ୗ㒊䛿㉸㟁ᑟ㍈ཷ䛻䜘䛳䛶㠀᥋ゐᨭᣢ䛥䜜䜛䚹ኚ఩䝉䞁䝃䛿䝣䝷䜲䝩䜲䞊䝹䛾ୖ㒊䛸ୗ㒊௜㏆䛻タ⨨䛧䠈ᅇ㌿᫬䛾䝻䞊䝍᣺ື䜢ィ 䛩䜛䚹䝣䝷䜲䝩䜲䞊䝹䛾ྲྀ䜚௜䛡䜙䜜䛯䝻䞊䝍䛿䠈㉸㟁ᑟయ䜢☢ሙ୰෭༷䛩䜛䛣䛸䛻䜘䛳䛶ᾋୖ䛥䜜䜛䚹㻌ᅇ㌿ᩘ䛜ྥୖ䛩䜛䛛䛴Ᏻᐃ㧗㏿ᅇ㌿䛷䛝䜛䜘䛖䛻䠈ᵓ㐀䛷䛿䝣䝷䜲䝩䜲䞊䝹䛾㔜ᚰ䛜ᨭⅬ䜘䜚ప䛟䛩䜛䛣䛸䛻䛧䛯䚹㻌

㻢㻜㻜㻜

0.3
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Flywheel
Energy[W]㻝䠊䛿䛨䜑䛻㻌
⌧ᅾ䠈䝕䞊䝍䝉䞁䝍䞊䜔⑓㝔䠈㕲㐨䠈㏻ಙ䛻䛚䛔䛶䛿䠈▐᫬㟁ᅽపୗ䛻䜘䜚ᶵჾ䜔㟁ຊ⣔⤫䛻ᙳ㡪䜢୚䛘䛺䛔䛯䜑䛾㟁ຊ㈓ⶶ䛜ᚲせ䛸䛥䜜䛶䛔䜛䚹㻌䛣䜜䜎䛷䛾ᵓ㐀䛷䛿䠈ᅇ㌿᫬䛻䝻䞊䝍䛻኱䛝䛺᣺ື䛜Ⓨ⏕䛧䛶䛚䜚䠈䝣䝷䜲䝩䜲䞊䝹ᅇ㌿ᩘ䛾ୖ᪼䛿㞴䛧䛔䚹ᮏ◊✲䛷䛿㟁ຊ㈓ⶶ㔞䛾ቑ኱䛩䜛䛯䜑䠈㧗㏿ᅇ㌿䛛䛴Ᏻᐃᅇ㌿䛾䛯䜑㔜ᚰ䜢ప䛟䛧䛶Ọஂ☢▼㍈ཷ䛸㉸㟁ᑟ㍈ཷ䜢⏝䛔䛯᪂䛧䛔䝣䝷䜲䝩䜲䞊䝹㟁ຊ㈓ⶶ⿦⨨䜢ヨస䛧䛯䚹ᮏ◊✲䛷䛿䝲䝆䝻䝧䞊ཎ⌮䛷䛾ᵓ㐀ゎᯒ䠈Ⓨ㟁㟁ືᶵ䛾ゎᯒ䠈䛥䜙䛻௒䜎䛷䛾ᵓ㐀䛸䛾ẚ㍑䜢䛩䜛䚹㻌㼀㼛㼜㻰㼕㼟㼜㼘㼍㼏㼑㼙㼑㼚㼠㻌㼇㼙㼙㼉䝮䝝䝬䝗㻌 䝇䝤䝝䞁䠈ᑠ᳃㻌 ᮃ඘䠄஑ᕤ኱䠅㻌㻹㼁㻷㻴㻭㻹㻭㻰㻌㻿㼡㼎㼗㼔㼍㼚䠈㻌 㻷㻻㻹㻻㻾㻵㻌㻹㼛㼏㼔㼕㼙㼕㼠㼟㼡㻌㻔㻷㼥㼡㼟㼔㼡㻌㻵㼚㼟㼠㼕㼠㼡㼠㼑㻌㼛㼒㻌㼀㼑㼏㼔㼚㼛㼘㼛㼓㼥㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼗㼛㼙㼛㼞㼕㼋㼙㼗㻬㼥㼍㼔㼛㼛㻚㼏㼛㻚㼖㼜㻌

0.015
0.012
0.009
0.006
0.003
0.000

Time [ms]㻲㼕㼓㻚㻟㻌㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㻌㼍㼠㻌㼠㼔㼑㻌㼠㼕㼙㼑㻌㼛㼒㻌㼙㼛㼙㼑㼚㼠㼍㼞㼥㻌㼢㼛㼘㼠㼍㼓㼑㻌㼐㼞㼛㼜䛷䛒䜚䠈㻟㼂 ⣙ 㻝㻜㻜㼙㼟 䛾▐ప䜢⏕䛨䛥䛫䛯䚹䛣䛾䛸䛝䛾㟁※㟁ᅽ
䛸㈇Ⲵ㟁ᅽ䠈䛭䛧䛶䝣䝷䜲䝩䜲䞊䝹ᅇ㌿ᩘ䛾≧ἣ䜢♧䛧䛯䜒䛾䛷䛒䜛䚹㻌㻠䠊䜎䛸䜑㻌
䝣䝷䜲䝩䜲䞊䝹䛾㔜ᚰ䛜ᨭⅬ䜘䜚ప䛟䛧䜘䛖䛸䛧䛯䛜䠈⌧ᅾ
᫬Ⅼ䛷䛿䝣䝷䜲䝩䜲䞊䝹䛾㔜ᚰ䛜㍈ཷ䛾ᨭⅬ䜘䜚䜎䛰ୖ䛻䛒䜛䚹䛭䛾䛯䜑䠈㔜ᚰ䛸㍈ཷ䛾ᨭⅬ䛸䛾㛵ಀ䜢᳨ウ䛩䜛ᚲせ䛜䛒䜛䚹䛭䛧䛶䠈⌧ᅾ䛷䛿ᵓ㐀䛾ゎᯒ䛺䛹༑ศ䛺䝕䞊䝍䛜ྲྀ䜜䛶䛔䛺䛔䛯䜑䠈䛣䜜䛛䜙䝲䝆䝻䝧䞊ཎ⌮䛷䛾ᵓ㐀ゎᯒ䠈Ⓨ㟁㟁ືᶵ䛾ゎᯒ䛺䛹䛻䛴䛔䛶䜒ホ౯䠈᳨ウ䛩䜛䚹㻌㻲㼕㼓㻚㻝㻌㻱㼚㼑㼞㼓㼥㻌㻿㼠㼛㼞㼍㼓㼑㻌㻲㼘㼥㼣㼔㼑㼑㼘㻌㻿㼥㼟㼠㼑㼙㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 㻷㻚㻌 㻹㼡㼞㼍㼗㼍㼙㼕㻘㻌 㻹㻚㻌 㻷㼛㼙㼛㼞㼕㻘㻌 㼑㼠㻌 㼍㼘㻚㻦㻌 㻵㻱㻱㻱㻌 㼀㼞㼍㼚㼟㼍㼏㼠㼕㼛㼚㼟㻌 㼛㼚㻌㻭㼜㼜㼘㼕㼑㼐㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼢㼕㼠㼥㻘㻌㼂㼛㼘㻚㻌㻝㻣㻌㻔㻞㻜㻜㻣㻕㻌㼜㼜㻚㻌㻞㻝㻠㻢㻌䇵㻌㻞㻝㻠㻥㻌― 188 ―

第83回

2010年度秋季低温工学・超電導学会

2D-a08

電力変換貯蔵㻿㻹㻱㻿 ⏝ 㼅 ⣔䝁䜲䝹㛤Ⓨ㻌
Coated conductor based coil development for SMES

㼂㻔㼙㼂䠅

㻌
ᘧ⏫㻌 ᾈ஧䠈⋢⏣㻌 ຮ䠈ᡂ℩㻌 ගே䠈ᖹ㔝㻌 ┤ᶞ䠈㛗ᒇ㻌 㔜ኵ䠄୰㒊㟁ຊ䠅䠗㻌 ῐ㊰㻌 ᬛ䠈Ώ㑓㻌 ࿴㞝䠄ᮾ໭኱䠅䠗㻌 すᓥ㻌 ඖ䠄≀ᮦ◊䠅㻌
SHIKIMACHI Koji䠈 TAMADA Tsutomu, NARUSE Mitsuhito, HIRANO Naoki, NAGAYA Shigeo (Chubu Electric Power);
AWAJI Satoshi, Watanabe Kazuo (Tohoku Univ.); NISHIJIMA Gen (NIMS)
E-mail: Shikimachi.Kouji@chuden.co.jp
㻌3. S. Awaji, et al.: Abstracts of CSJ Conference, Vol. 83㻝㻌 㻌 䛿䛨䜑䛻㻌(2010) 2A-a12㟁ຊ⣔⤫ไᚚ⏝ 2 GJ ⣭ SMES[1]䛾せ⣲ᢏ⾡㛤Ⓨ䛻䛚䛔䛶䚸㧗☢⏺䞉኱㟁ὶ䝁䞁䝟䜽䝖䝁䜲䝹䛾ᐇ⌧䜢┠ᣦ䛧䚸䝣䞊䝥ᛂຊ 600 MPa ௨ୖ䚸㏻㟁ᐜ㔞 2 kA ௨ୖ䛾䝁䜲䝹㛤Ⓨ䜢㐍䜑䛶䛔䜛䚹௒ᅇ䚸CVD-Y ⣔⥺ᮦ䜢⏝䛔䛶䝁䜲䝹䜢〇స䛧䚸䝣䞊䝥ᛂຊヨ㦂䜔኱㟁ὶ㏻㟁ヨ㦂䜢ᐇ᪋䛧䛯䛾䛷䚸䛭䛾⤖ᯝ䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌㻞㻌 㻌 䝣䞊䝥ᛂຊヨ㦂㻌ከᒙᕳ䝁䜲䝹䛾䝣䞊䝥ᛂຊ⪏ᛶ 600 MPa 䜢㐩ᡂ䛩䜛䛯䜑䚸䝅䞁䜾䝹䝟䞁䜿䞊䜻(௨ୗ䚸SP 䛸䛔䛖)ᆺ 69.5 ᕳ䛾ᶞ⬡ྵᾐ䝁䜲䝹(ෆ/እᚄ䠖I200/ 251 mm)䜢〇స䛧䛯䚹⏝䛔䛯 Cu 䝯䝑䜻
IBAD/ CVD-GdYBCO ⥺ᮦ䛿ᖜ 10 mm䚸ཌ䛥⣙ 280 Pm (䝝䝇䝔䝻䜲ᇶᯈཌ䛥 100Pm)䚸Ic 200 A ⣭(ᒁᡤⓗ䛻ప Ic 䛾䛯䜑 3⟠ᡤ䝟䝑䝏䛻䜘䜛⿵ಟ䛒䜚)䛷䛒䜛䚹11 T እ㒊☢⏺୰䛷ບ☢䛧䛯᫬䛾䝁䜲䝹඲య(㟁ᴟ㎸)䛚䜘䜃⿵ಟ⟠ᡤ䛾 I-V ≉ᛶ䜢䛭䜜
䛮䜜 Fig. 1 䛚䜘䜃 Fig. 2 䛻♧䛩䚹Fig. 1 䜘䜚䚸᭱኱㟁ὶ 572 A
Fig. 1. I-V characteristics of the SP coil excited in 11 T outer㏻㟁᫬䛻䛚䛔䛶䜒䚸☢᮰䝣䝻䞊㟁ᅽ䛿Ⓨ⏕䛫䛪䚸ຎ໬䛿ほmagnetic field.
䛥䜜䛺䛛䛳䛯䚹䛣䛾᫬䚸᭱኱䝣䞊䝥ᛂຊ䛿䚸䝝䝇䝔䝻䜲ᇶᯈ䛻ᑐ䛧䚸BJR 䛻䜘䜛ィ⟬䛷䛿 744 MPa䚸୍యኚᙧ䛾 Wilson 䛾ᘧ[2]䛛䜙䛿 854 MPa 䛸䛺䜛䚹ྠᵝ䛾ヨ㦂䛻䜘䜚䚸䝁䜲䝹䛿୍యኚᙧ䛸᝿ᐃ䛥䜜䜛ᣲື䜢ほᐹ䛧䛶䛔䜛[3]䚹䜎䛯䚸Fig. 2 䜘䜚䚸⿵ಟ⟠ᡤ䛻䛚䛔䛶䜒䝣䝻䞊㟁ᅽ䜔ຎ໬䛿ほ 䛥䜜䛪䚸ୖグ䝣䞊䝥ᛂຊ್䛻ᑐ䛧䛶⿵ಟᢏ⾡䛜᭷ຠ䛷䛒䜛䛣䛸䜢☜ㄆ䛧䛯䚹㻌㻟㻌 㻌 ኱㟁ὶ㏻㟁ヨ㦂㻌
2 GJ ⣭ SMES 䛻せồ䛥䜜䜛 2 kA ௨ୖ䛾㟁ὶᐜ㔞䜢☜ಖ䛩䜛䛯䜑䚸㞟ྜᑟయ䛸䛧䛶 AC 䝻䝇పῶ䛾䛯䜑⣲⥺⤯⦕䛧䛯Cu 䝯䝑䜻 Y ⣔⥺ᮦ 4 ᮏ䜢୪ิ䛻᮰䛽䚸SP ᆺ 33 ᕳ䛾ᶞ⬡ྵᾐ䝁䜲䝹䜢〇స䛧䛯䚹䝁䜲䝹䝃䜲䝈䛿 2 GJ ⣭䝖䝻䜲䝗ᆺ SMES
䝁䜲䝹䛾୺せㅖඖ(11 T, 600 MPa)䛸ྠ➼䛸䛺䜛 20 MJ ⣭䝖䝻䜲䝗ᆺ SMES 䛾せ⣲䝁䜲䝹䛾እᚄI 650 mm ⣭䛸䛧䛯䚹䝁䜲䝹䛿ෆഃ㟁ᴟ䛻䚸4 ⣲⥺䜢 90㼻➼㓄䛷༙⏣௜䛡䛧䛶ᕳ䛝ጞ䜑䚸
90㼻➼㓄䛷㓄⨨䛥䜜䛯እഃ㟁ᴟ䛷ᕳ䛝⤊䜟䜛ᙧ䛸䛧䚸ᅇ㌿ᑐ⛠䛾ᙧ≧䜢☜ಖ䛩䜛䛸䛸䜒䛻䚸㟁ᴟ㒊䛻䛚䛡䜛⥺ᮦ᥋⥆㛗䜢ྠ୍㛗 100 mm 䛸䛩䜛䛣䛸䛷䚸4 ⣲⥺䛾䜲䞁䝎䜽䝍䝍䞁䝇➼䛾㟁
Fig. 2. I-V characteristics at three repaired portions of the SPẼᐃᩘ䜢ྜ䜟䛫䚸4 ⣲⥺䛾ᆒὶ໬䜢ᅗ䛳䛯䚹coil excited in 11 T magnetic field.
ᾮయ䝦䝸䜴䝮୰䛻䛚䛔䛶䝁䜲䝹䛻኱㟁ὶ䜢㏻㟁䛧䛯᫬䛾䝁䜲䝹ྛ⣲⥺䛾Ⓨ⏕㟁ᅽ䜢 Fig. 3 䛻♧䛩䚹ᶓ㍈䛿ᑟయ㟁ὶ䜢㻜㻚㻡㻜⾲䛧䛶䛔䜛䚹䝁䜲䝹䛾඲㏻㟁㟁ὶ䛜 1 kA ௜㏆䜎䛷䛿ྛ⣲⥺㻜㻚㻠㻡䛾Ⓨ⏕㟁ᅽ䛻኱䛝䛺ᕪ␗䛿ほ 䛥䜜䛶䛚䜙䛪䚸ᆒὶ໬䛜ᅗ䜙㻜㻚㻠㻜䜜䛶䛔䜛䚹୍᪉䚸1 kA ௜㏆䛛䜙䛾ྛ⣲⥺䛻೫ὶ䛜ほ 䛥䜜䛶㻜㻚㻟㻡䛔䜛䛜䚸䝁䜲䝹እഃྛ㟁ᴟ䛾㟁ᅽ ᐃ䚸㏆ഐ☢ሙ ᐃ䛾ホ㻜㻚㻟㻜౯⤖ᯝ䚸ྛ⥺ᮦ䛾䝣䝻䞊㟁ᅽ䜢཯ᫎ䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹㻏㻝ㅰ㎡ᮏ◊✲䛿䚸NEDO 䛾ጤク஦ᴗ䛂䜲䝑䝖䝸䜴䝮⣔㉸㟁ᑟ㟁ຊᶵჾᢏ⾡㛤Ⓨ䛃䛾୍⎔䛸䛧䛶ᐇ᪋䛧䛯䜒䛾䛷䛒䜛䚹

㻏㻞
㻏㻟
㻏㻠

㻜㻚㻞㻡
㻜㻚㻞㻜
㻜㻚㻝㻡
㻜㻚㻝㻜
㻜㻚㻜㻡

ཧ⪃ᩥ⊩
1. K. Shikimachi, et al.: IEEE Trans. Appl. Supercond., Vol.
19 (2009) pp. 2012-2018.
2. M. Wilson “Superconducting magnets”, Oxford Sci. Pub.,
1983.

㻜㻚㻜㻜
㻜

㻡㻜㻜

㻝㻜㻜㻜

㻝㻡㻜㻜
㻵㻔㻭㻕

㻞㻜㻜㻜

㻞㻡㻜㻜

㻟㻜㻜㻜

Fig. 3. I-V characteristics of the 4 bundled-tapes coil inliquid Helium.

― 189 ―

第83回

2010年度秋季低温工学・超電導学会

2D-a09

電力変換貯蔵⮬↛䜶䝛䝹䜼䞊䛻⏝䛔䜛 㻿㻹㻱㻿 ᐜ㔞䛾᭱㐺໬䛾᳨ウ㻌㻿㼠㼡㼐㼥㻌㼛㼚㻌㼛㼜㼠㼕㼙㼕㼦㼍㼠㼕㼛㼚㻌㼛㼒㻌㻿㻹㻱㻿㻌㼏㼍㼜㼍㼏㼕㼠㼥㻌㼒㼛㼞㻌㼚㼍㼠㼡㼞㼍㼘㻌㼑㼚㼑㼞㼓㼥㻌Wind power output [MW]㻌୰ᮧ㻌 㝯ே䠈ኳ⏣㻌 ༤ோ䠈୰ᒣ㻌 ▱⣖䠈ὠ⏣㻌 ⌮䠈℈ᓥ㻌 㧗ኴ㑻䠄ᮾ໭኱䠅㻌㻺㻭㻷㻭㻹㼁㻾㻭㻌㼀㼍㼗㼍㼔㼕㼠㼛䠈㻌 㻭㻹㻭㼀㻭㻌㻴㼕㼞㼛㼠㼛䠈㻺㻭㻷㻭㼅㻭㻹㻭㻌㼀㼛㼙㼛㼚㼛㼞㼕䠈㼀㻿㼁㻰㻭㻌㻹㼍㼗㼛㼠㼛䠈㻴㻭㻹㻭㻶㻵㻹㻭㻌㼀㼍㼗㼍㼠㼍㼞㼛㻌㻔㼀㼛㼔㼛㼗㼡㻌㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼠㼍㼗㼍㼔㼕㼠㼛㻬㼑㼏㼑㼕㻚㼠㼛㼔㼛㼗㼡㻚㼍㼏㻚㼖㼜㻌㻌䛾 㻿㻹㻱㻿 ᐜ㔞䛿䠈⛣ືᖹᆒ䜢⏝䛔䛯ሙྜ䛜 㻢㻜㻹㻶䠈䜹䝹䝬䞁䝣㻝䠊䛿䛨䜑䛻㻌
䜱䝹䝍䜢⏝䛔䛯ሙྜ䛜 㻡㻜㻹㻶 ⛬ᗘ䛷䛒䜛䛣䛸䛜䜟䛛䛳䛯䚹㻌⮬↛䜶䝛䝹䜼䞊䛿ฟຊኚື䛜ⴭ䛧䛔䛯䜑䠈㐃⣔䛧䛯㟁ຊ㻌⣔⤫䛻ᝏᙳ㡪䜢ཬ䜌䛩஦䛜ᠱᛕ䛥䜜䛶䛚䜚䠈ฟຊኚືᑐ⟇䛸㻡䠊䜎䛸䜑㻌
䛧䛶⣔⤫䛻㟁ຊ㈓ⶶ⿦⨨䜢ేタ䛩䜛᪉ἲ䛜᭷ຊど䛥䜜䛶䛔㻝 ᪥䛾 㻝㻜 ⛊㛫㝸䝃䞁䝥䝸䞁䜾㢼ຊⓎ㟁Ἴᙧ䛻⛣ືᖹᆒᖹ䜛䚹⮬↛䜶䝛䝹䜼䞊䛾ฟຊ䛿 㻝 ศ⛬ᗘ䛾ᛴ⃭䛺ኚືᡂศ䛸䠈⁥ἲ䛸䜹䝹䝬䞁䝣䜱䝹䝍ண 䜢㐺⏝䛧䠈⢭ᗘ䛾Ⰻ䛔ண ್䛜䜖䛳䛟䜚䛸ኚ໬䛩䜛ᖹᆒᡂศ䛻ศ䛡䜙䜜䜛䛾䛷䠈䛭䜜䛮䜜䛻ᑐᚓ䜙䜜䛯䚹≉䛻䜹䝹䝬䞁䝣䜱䝹䝍ண 䜢⏝䛔䜛䛣䛸䛷䠈㻿㻹㻱㻿 ᐜᛂ䛧䛯㈓ⶶ⿦⨨䜢⏝䛔䜛䛾䛜ᮃ䜎䛧䛔䚹ኚືᡂศ䛻ᑐ䛧䛶䛿㔞䛜᭱ᑠ䛸䛺䜛஦䛜☜ㄆ䛷䛝䛯䚹㻌▐㛫ⓗ䛻኱㟁ຊ䛾ධฟຊ䛜ྍ⬟䛺 㻿㻹㻱㻿 䜢䠈ᖹᆒᡂศ䛻䛿䛣䛣䛷䛿䠈௦⾲ⓗ䛺 㻝 ᪥䛾㢼ຊⓎ㟁Ἴᙧ䛾 㻝 䛴䜢ゎᯒ䛻Ỉ⣲㻙⇞ᩱ㟁ụ䠈䜒䛧䛟䛿䠈㟁ụ䜢⏝䛔䜛䚹㈓ⶶ⿦⨨䛾᭱㐺䛺⏝䛔䛯䛜䠈䜹䝹䝬䞁䝣䜱䝹䝍ண 䜢⏝䛔䜛஦䛷ᵝ䚻䛺㢼ຊⓎᐜ㔞䜢Ỵᐃ䛩䜛䛻䛿䠈⮬↛䜶䝛䝹䜼䞊䛾ฟຊ䜢ண 䛩䜛ᚲ㟁Ἴᙧ䛾᭱㐺䛺ண 䛜䛷䛝䜛䛸⪃䛘䜙䜜䜛䚹䜎䛯䠈㢼ຊⓎ㟁せ䛜䛒䜚䠈ᮏㄽᩥ䛷䛿䠈⛣ືᖹᆒᖹ⁥ἲ䛸䜹䝹䝬䞁䝣䜱䝹䝍ண䛰䛡䛷䛺䛟䠈㢼ຊⓎ㟁ྠᵝ䛻ฟຊኚື䛜⃭䛧䛔ኴ㝧ගⓎ㟁䜢⏝䛔䛶㢼ຊⓎ㟁䛾ฟຊண 䜢⾜䛔䠈᭱㐺䛺 㻿㻹㻱㻿 ᐜ㔞➼䛻䜒㐺⏝ྍ⬟䛷䛒䜛䚹㻌䜢Ỵᐃ䛩䜛ᡭἲ䜢⪃᱌䛧䛯䛾䛷ሗ࿌䛩䜛䚹㻌௒ᚋ䛾᳨ウㄢ㢟䛸䛧䛶䠈ண 䛻ᑐ䛩䜛ホ౯᪉ἲ䛾᳨ウ䜔㻌㟁ຊᶵჾ䛾≉ᛶ䜢⪃៖䛧䛯᳨ウ䜢⾜䛳䛶䛔䛟ᚲせ䛜䛒䜛䚹㻌㻞䠊ฟຊኚືண ᡭἲ㻌ኚື䛾⃭䛧䛔᫬⣔ิ䝕䞊䝍䜢⡆౽䛻ᖹ⁥໬䛩䜛᪉ἲ䛸䛧
3䛶䠈⛣ືᖹᆒᖹ⁥ἲ䛜䛒䜛䚹⛣ືᖹᆒ䛿䠈┤㏆䛾 N ಶ䛾᫬⣔ิ䝕䞊䝍䛾༢⣧䛺ᖹᆒ䛷䛒䜛䚹⌧᫬Ⅼ䛾್䜢 x n 䛸䛩䜛䛸䠈ᖹᆒ್ y n 䛿௨ୗ䛾ᘧ䛷ᐃ⩏䛥䜜䜛䚹㻌N¦x niN 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻔㻝㻕㻌i 1

Actual output
Predicted output by moving average
Predicted output by kalman filter

2

42400

42600
42800
Time [sec.]

43000

㻌
㻲㼕㼓㻚㻝㻌㻭㼏㼠㼡㼍㼘㻌㼍㼚㼐㻌㼜㼞㼑㼐㼕㼏㼠㼑㼐㻌㼛㼡㼠㼜㼡㼠㻌㼛㼒㻌㼣㼕㼚㼐㻌㼜㼛㼣㼑㼞㻌㼓㼑㼚㼑㼞㼍㼠㼕㼛㼚㻌㻌㼀㼍㼎㼘㼑㻌㻝㻌㻿㼠㼍㼠㼕㼟㼠㼕㼏㻌㼛㼚㻌㼠㼔㼑㻌㼜㼞㼑㼐㼕㼏㼠㼕㼛㼚㻌㼑㼞㼞㼛㼞㻌
Average predictedvalue by moving
average-0.00065484
0.6559-0.69390.1578Average[MW]
Maximum [MW]Minimum [MW]Standard deviation

Average predictedvalue by kalmanfilter0.000221732
0.5499-0.55290.1291

㻌
䪱䢯䢵䪸

䪱䢭䢵䪸

㻾 㼑㼘㼍㼠㼕㼢㼑㻌㼒㼞㼑㼝㼡㼑㼚㼏㼥䛧䛛䛧䠈⛣ືᖹᆒ䛿ᐇ㝿䛾ື䛝䛛䜙㐜䜜䛶ᖹ⁥໬䛧䛯ୖ䛷㏣㝶䛩䜛䛯䜑䠈⌮ㄽⓗ䛺⪃ᐹ䛻䛿᭷⏝䛷䛒䜛䛜䠈⌧ᐇⓗ䛺ᡭἲ䛸䛧䛶䛿䛒䜎䜚⏝䛔䜙䜜䛺䛔䚹㻌䝰䝕䝹䛾᭦᪂䜢ຠ⋡Ⰻ䛟⾜䛖㏲ḟィ⟬䜰䝹䝂䝸䝈䝮䛻䜹䝹䝬䞁䝣䜱䝹䝍䛜䛒䜛䚹䜹䝹䝬䞁䝣䜱䝹䝍䛿⌧ᅾ䜎䛷䛻୚䛘䜙䜜䛯್䛛䜙 㻝 ᮇඛ䛾ண 䜢⾜䛔䠈ḟ䛻⌧ᅾ䛾ほ ್䜢⏝䛔䛶䠈ඛ䛻᥎ᐃ䛧䛯್䛾䝣䜱䝹䝍䝸䞁䜾䜢⾜䛔䠈䝰䝕䝹䜢㏲ḟ᭦᪂䛧䛶䛔䛟䜰䝹䝂䝸䝈䝮䛷䛒䜛䛯䜑䠈㧗⢭ᗘ䛺ゎᯒ䛜䛷䛝䜛㼇㻝㼉䚹㻌㻌㻟䠊㢼ຊⓎ㟁ฟຊண 㻌௒ᅇ䠈ゎᯒ䛻⏝䛔䛯 㻝 ᪥䛾㢼ຊⓎ㟁䛾ᐇ ್䛸⛣ືᖹᆒᖹ⁥ἲ䛻䜘䜛ᖹᆒண ್䛚䜘䜃䜹䝹䝬䞁䝣䜱䝹䝍䛻䜘䜛ᖹᆒண ್䜢 㻲㼕㼓㻚㻝 䛻♧䛩䚹䛯䛰䛧䠈ᐇ ್䛿ᐃ᱁ฟຊ 㻢㻚㻡㻹㼃 䛾㻝㻜 ⛊䛤䛸䛾䝃䞁䝥䝸䞁䜾Ⓨ㟁Ἴᙧ䛷䛒䜛䚹㻲㼕㼓㻚㻝 䛻䜘䜜䜀䠈㻞 䛴䛾ᖹᆒண ್䛸䜒ᐇ ್䛾ື䛝䜢ᴫ䛽෌⌧䛷䛝䛶䛔䜛䛣䛸䛜䜟䛛䜛䚹䛧䛛䛧䠈⛣ືᖹᆒ䛻䜘䜛ᖹᆒண ್䛿ᩘ༑⛊⛬ᗘ㐜
䜜䛶㏣㝶䛧䛶䛔䜛䛾䛻ᑐ䛧䠈䜹䝹䝬䞁䝣䜱䝹䝍䛻䜘䜛ᖹᆒண್䛿⁥䜙䛛䛺䝖䝺䞁䝗㻔ഴྥ㻕䛜ᚓ䜙䜜䛶䛔䜛䚹㻌㼀㼍㼎㼘㼑㻌 㻝 䛻ኚືᡂศ㻔㻩ண ್㻙ᐇ ್㻕䛾ᇶᮏ⤫ィ㔞䜢♧䛩䚹䛹䛱䜙䛾ᖹᆒ್䜒䜋䜌 㻜 䛸䛺䜛䛣䛸䛛䜙䠈ᐇ ್䛾ᖹᆒ್௜㏆䜢䛸䜚䠈Ⰻዲ䛺䝖䝺䞁䝗䛜䛸䜜䛶䛔䜛䛣䛸䛜☜ㄆ䛷䛝䜛䚹ᶆ‽೫ᕪ䜒䠈䜹䝹䝬䞁䝣䜱䝹䝍ண 䛾᪉䛜ᑠ䛥䛔್䛸䛺䜚䠈⢭ᗘⰋ䛟ண 䛷䛝䛶䛔䜛஦䜢♧䛧䛶䛔䜛䚹㻌㻌㻠䠊㻿㻹㻱㻿 ᐜ㔞䛾Ỵᐃ㻌ᐇ㝿䛾㢼ຊἼᙧ䛻ᑐ䛧䛶ᚲせ䛸䛺䜛 㻿㻹㻱㻿 ᐜ㔞䛾ศᕸ䜢㻲㼕㼓㻚㻞 䛻♧䛩䚹䝥䝷䝇䛿඘㟁䠈䝬䜲䝘䝇䛿ᨺ㟁䜢ព࿡䛩䜛䚹䛹䛱䜙䛾ண ᡭἲ䜢⏝䛔䛯ሙྜ䜒 㻿㻹㻱㻿 ᐜ㔞䛾ศᕸ䛾ᖹᆒ್䛿䜋䜌 㻜 䛸䛺䜚䠈䛣䜜䛿 㻿㻹㻱㻿 䛾඘ᨺ㟁䛜೫䜚䛺䛟⾜䜟䜜䜛஦䜢♧䛧䛶䛔䜛䚹䜎䛯䠈㻲㼕㼓㻚㻞 䛾ศᕸ䜢ṇつศᕸ䛸௬ᐃ䛩䜛䛸䠈ᖹᆒ್䜢䃛䠈ᶆ‽೫ᕪ䜢䃢䛸䛧䛶䠈ಙ㢗༊㛫䃛㼼㻟䃢㻔㻥㻥㻚㻣㻑㻕䛷

2.5

-50

䪱䢭䢵䪸

䪱䢯䢵䪸

㻾 㼑㼘㼍㼠㼕㼢㼑㻌㼒㼞㼑㼝㼡㼑㼚㼏㼥

yn

-40

-30

-20

-10

0

10

20

30

㻿㻹㻱㻿㻌㼏㼍㼜㼍㼏㼕㼠㼥㻌㼇㻹㻶㼉40

50 -50

-40

-30

-20

-10

0

10

20

30

40

㻿㻹㻱㻿㻌㼏㼍㼜㼍㼏㼕㼠㼥㻌㼇㻹㻶㼉50㻌㻔㼍㻕 㻌 㻹㼛㼢㼕㼚㼓㻌㼍㼢㼑㼞㼍㼓㼑㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻔㼎㻕㻌㻷㼍㼘㼙㼍㼚㻌㼒㼕㼘㼠㼑㼞㻌㻲㼕㼓㻚㻞㻌㻰㼕㼟㼠㼞㼕㼎㼡㼠㼕㼛㼚㻌㼛㼒㻌㻿㻹㻱㻿㻌㼏㼍㼜㼍㼏㼕㼠㼥㻌㼒㼛㼞㻌㼣㼕㼚㼐㻌㼜㼛㼣㼑㼞㻌㼓㼑㼚㼑㼞㼍㼠㼕㼛㼚㻌㻌ཧ⪃ᩥ⊩㻌㻝㻚 㼀㻚㻌 㻺㼍㼗㼍㼥㼍㼙㼍㻘㻌 㼀㻚㻌 㼅㼍㼓㼍㼕㻘㻌 㻹㻚㻌 㼀㼟㼡㼐㼍㻘㻌 㼀㻚㻌 㻴㼍㼙㼍㼖㼕㼙㼍㻚㻌 㻌㻌 䇿㻻㼜㼠㼕㼙㼕㼦㼍㼠㼕㼛㼚㻌 㼛㼒㻌 㻿㻹㻱㻿㻌 㻯㼛㼙㼜㼑㼚㼟㼍㼠㼕㼛㼚㻌 㻯㼍㼜㼍㼏㼕㼠㼥㻌 㼒㼛㼞㻌㻿㼠㼛㼏㼔㼍㼟㼠㼕㼏㻌 㻼㼛㼣㼑㼞㻌 㼁㼟㼕㼚㼓㻌 㼍㻌 㻷㼍㼘㼙㼍㼚㻌 㻲㼕㼘㼠㼑㼞䇿㻘㻌 㼀㻱㻵㻻㻺㻌 㻷㻻㻳㻭㻷㼁㻌 㻠㻡㻔㻞㻜㻝㻜㻕㻌― 190 ―

第83回

2010年度秋季低温工学・超電導学会

2D-a10

電力変換貯蔵

SMES

Series Compensated Thyristor Converters Applied to Current Source Power
Conversion Systems for SMES()

NOMURA Shinichi (Meiji Univ.)

E-mail: nomuras@meiji.ac.jp
3

1

100 V
I d = 75 A

SMES
10 kA

V = 20 V
1
cos

1

1

0

[1]

180
Ed

Ed =

3 2

V cos = 1.35V cos .

(1)

[1]
1

SMES

2 200 V-100 A

Fig. 2. Photograph of the prototype system for the demonstrationof the series compensated thyristor converter.

2
GCSC gate-commuted
series capacitor
200
100 A

V

GCSC

500 μ F
1.8 H

Fig. 3. DC voltage E d dependence on the current leading angleof the series compensated thyristor converter prototype. The
dots indicate the experimental results. The theoretical curve iscalculatedfrom(1).

Fig. 1. Series compensation of thyristor converters for superconducting
magnets with a variable series capacitor. is a ¿ring angle of thethyristor converter. is a leading angle.

[1] S. Nomura, J. Wiik, R. Shimada, “Series Compensationof Thyristor Converters for Superconducting Magnets,”
Proc. IPEC-Sapporo 2010, pp. 1534–1540.

― 191 ―

第83回

2010年度秋季低温工学・超電導学会

2D-a11

電力変換貯蔵㉸㟁ᑟ࢖ࣥࣂ࣮ࢱࡢኚ᥮ຠ⋡ྥୖ࡜ᩘ್ィ⟬
6LPXODWLRQRQWKHHIILFLHQF\RIVXSHUFRQGFXWLQJLQYHUWHU㻌㻌㛗ᮧග㐀㸦ᛂ⏝⛉Ꮫ◊㸧ࠊ㓇஭᫂㸦ி኱㸧ࠊ୰ᮧṊᜏ㸦ி኱㸧ࠊ⚟⏣┿἞㸦୰㒊኱㸧ࠊᒣཱྀసኴ㑻㸦୰㒊኱㸧㻌
26$085$.R]R㸦5,$6㸧ࠊ6$.$,$NLUD .\RWR8QLY 1$.$085$7DNHWVXQH .\RWR8QLY )8.8'$6KLQML &KXEX8QLY DQG<$0$*8&+,6DWDUR &KXEX8QLY 㻱㻙㼙㼍㼕㼘㻦㻌㼗㼛㼦㼛㼋㼛㼟㼍㼙㼡㼞㼍㻬㼞㼕㼍㼟㻚㼛㼞㻚㼖㼜㻌㻌㻵㼦㼙㼍㼤 䚸 䛸 ຠ ⋡ K 䜢 ồ 䜑 䛯 䚹 ⣙ 㻟㻜㻑 䛾 ຠ ⋡ 䜢 ᚓ 䜛 䛯 䜑 䛻 䛿㻝䠊䛿䛨䜑䛻㻌
㻾㻭㼙㼍㼤㻛㻾㼆㻩㻟㻚㻟㼤㻝㻜㼊㻠 䛷䛒䜛䛣䛸䛜ồ䜑䜙䜜䜛䛜䚸䛣䛾್䛿ᙧ≧⌧≧䛾㟁ຊᶵჾ䛻⏝䛔䜙䜜䛶䛔䜛䜲䞁䝞䞊䝍⏝⣲Ꮚ䛿༙ຠᯝ䛻䜘䜚⣲Ꮚ䛾 㼛㼒㼒 ᢬ᢠ䜢㧗䜑䛶ᐇ⌧ྍ⬟䛸⪃䛘䜙䜜䜛䚹ᑟయ䛷䛒䜛䛯䜑㟁ὶ䛜㏻㐣䛩䜛䜸䞁≧ែ䛷䝆䝳䞊䝹⇕䛜Ⓨ䠎䠊ᐇ㦂᪉ἲ㻌

1071

Iz (A)

0.5

0

-0.5

-1

t (s)

)LJ  &RPSDULVRQ RI VLPXODWHG UHVXOWV ZLWK WKHREVHUYHG$&FXUUHQW㻌10

I c ( B)  ࡢ౫Ꮡᛶࡀ࠶ࡿࡶࡢ࡜ࡋࡓࠋࡇࡇ࡛ᐃᩘ࡟ࡘ࠸࡚ࠊࢹࣇ
࢓ࢡࢺࢆ Q 9F P9%R *N P  ࡜ࡋ࡚✀ࠎኚ໬ࡉࡏᩘ್ィ⟬ࢆ⾜ࡗࡓࠋ䠐䠊ᩘ್ィ⟬㻌㻌 㻲㼕㼓㻚㻌 㻝 ୰䛾୸༳䛿ᐇ㦂䛷ᚓ䜙䜜䛯஺ὶἼᙧ䛷䛒䜚䚸ᐇ⥺䛿ᩘ್ィ⟬䛾⤖ᯝ䛷䛒䜛䚹䠄䠏䠅ᘧ䛻♧䛩䜘䛖䛻䛒䜛㜈್䜘䜚☢ሙ䛜㧗䛟䛺䜛䛸⮫⏺㟁ὶ䛻ᙳ㡪䛩䜛䛸䛩䜛䛣䛸䛻䜘䜚䚸䜎䛯䝟䝷䝯䞊䝍䜢㑅䜆䛣䛸䛻䜘䜚䚸䜘䜚ཝᐦ䛺ᩘ್ゎ䛜ᚓ䜙䜜䜛䚹㻲㼕㼓㻚㻌 㻞 䛿ᩘ್ィ⟬䛻ᚲせ䛺䝟䝷䝯䞊䝍䜢᭱㐺໬䛧䛯䛒䛸䚸㈇Ⲵ᢬ᢠ 㻾㼆䛸┤ὶ㟁ὶ 㻵㼛 䛾㛵ᩘ䛸䛧䛶䚸㈇Ⲵ 㼆 䛻ὶ䜜䜛஺ὶ䛾䝢䞊䜽್

6

10^-8
15

4
10^-7
2

10

5
10^-6

0
15

n

m
ª
§ B  Bo · º¸¸ »I co «1  k ¨¨«¬
© 2 Bmax  Bo ¹ »¼

25

20࢖ࣥࣂ࣮ࢱືస࡟㛵ಀࡍࡿ㉸㟁ᑟ⣲Ꮚ࡟ࡣḟࡢࡼ࠺࡞㠀⥺ᙧᛶࢆ⪃࠼ࡿࠋ༳ຍ㟁ὶ࡟ᑐࡋ࡚ࡣ㏻ᖖࡢ 9̽,≉ᛶࢆ♧ࡍࡶࡢ࡜ࡍࡿࠋ

⮫⏺㟁ὶ࡟ࡣḟࡢࡼ࠺࡟ %!%R ௨ୖࡢ☢ሙ࡛

Rz (Ohm) = 10^-98䠏䠊㉸㟁ᑟ⣲Ꮚ䛾㠀⥺ᙧᛶ㻌V30
Bo =100 G, m = 0.5࡛⾲ࡉࢀࡿ☢ሙࢆⓎ⏕ࡉࡏࡓࠋࡇࡇ࡛ i=A or B ࡛࠶ࡿࠋ࿘Ἴᩘ࡜ࡋ࡚ f =0.1 Hz ࠿ࡽ 100 Hz ࡢ⠊ᅖࢆㄪ࡭ࡓࠋ§ I ·¸¸   Vc ¨¨© I c ( B) ¹

2.115 2.12 2.125 2.13 2.135 2.14 2.145 2.15

K (%)

㻌 ⏝࠸ࡓ㉸ఏᑟ⣲Ꮚࡣࢧࣇ࢓࢖࢔ᇶᯈୖ࡟ YBCO ⤖ᬗࢆཌࡉ 300nm ᡂ㛗ࡉࡏࡓࡶࡢ࡛ࠊ඲య࡟⾲㠃࡟ಖㆤᒙ࡜
ࡋ࡚㔠ࡀཌࡉ 100nm ௜ࡅࡽࢀ࡚࠸ࡿࠋ⮫⏺㟁ὶࡣ 77K
࡛ Ic=32A ࡛࠶ࡗࡓࠋࡇࡢ⣲Ꮚ㸲ᯛࢆ๓ᅇࡢⓎ⾲ࡢࡼ࠺࡟H ࣈࣜࢵࢪᅇ㊰ࡢ A, B, A’, B’࡟㓄⨨ࡋࠊ㈇Ⲵ࡟ࡣ᢬ᢠ
RZ=50 P:ࡢ㔠ᒓ᢬ᢠࢆ⏝࠸ࡓࠋࢫ࢖ࢵࢳࣥࢢືసࢆࡉࡏ
ࡿࡓࡵ㸰ಶࡢ㟁☢▼(MA, MB)ࢆ⏝࠸ࠊ⣲Ꮚ A, A’࠶ࡿ࠸ࡣ⣲Ꮚ B, B’ࡀྠ᫬࡟᢬ᢠ≧ែ࡟࡞ࡿࡼ࠺࡟ࡋࡓࠋ㸰ࡘࡢ☢
▼ࡢ఩┦ᕪࢆTi ࡜ࡋ࡚(1)Bi
B DC , i  B max, i [1  sin( 2 S ft  T i )]1

Iz,max (A)⏕䛩䜛䚹䛸䛟䛻䝟䝽䞊䜲䞁䝞䞊䝍䛻䛸䜚䛣䛾䝆䝳䞊䝹⇕Ⓨ⏕䛿኱䛝䛺ᦆኻ䛷䛒䜚䚸䝆䝳䞊䝹⇕䜢䝊䝻䛻䛩䜛䛾䛜䜲䞁䝞䞊䝍䛻䛸䛳䛶⌮᝿ⓗ䛺≧ែ䛷䛒䜛䚹䝆䝳䞊䝹⇕Ⓨ⏕䝊䝻䛒䜛䛔䛿㝈䜚䛺䛟䝊䝻䛻㏆䛔䜲䞁䝞䞊䝍䛾ᐇ⌧䛿䚸㉸ఏᑟ≉ᛶ䜢ά⏝䛩䜛䛣䛸䛻䜘䜚ཎ⌮ⓗ䛻ྍ⬟䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹䛭䛣䛷䛣䛣䛷ᥦ᱌䛩䜛㉸㟁ᑟ䜲䞁䝞䞊䝍䛜䚸䝟䝽䞊䜢ᚲせ䛸䛩䜛㟁ຊኚ᥮ᶵჾ
䛸䛧䛶ᐇ⏝໬䛜ྍ⬟䛛䛹䛖䛛䜢ᐇド䛩䜛䛯䜑䛾◊✲䜢⥅⥆䛧䛶䛔䜛䚹๓ᅇ䜎䛷䛾ሗ࿌䛷㉸㟁ᑟ䜲䞁䝞䞊䝍ືస䛜ྍ⬟䛷䛒䜛䛣䛸䚸㧗ຠ⋡໬䛻ᚲせ䛺せ⣲䛻䛴䛔䛶᳨ウ䛧䛶䛝䛯䚹㻌
ᮏㅮ₇࡛ࡣ┤ὶ㟁※㟁ὶࢆ ,R ࡜ࡋ࡚஺ὶ࡟ኚ᥮ࡉࢀࡓ
㟁ὶࡢࣆ࣮ࢡ㟁ὶࢆ ,= ࡜ࡋ࡚ࠊࡑࡢẚ ,],R  ࢆኚ᥮ຠ⋡K  ࡜ࡋࡓ࡜ࡁࠊຠ⋡ࡀ㧗ࡃ࡞ࡿ᮲௳ࢆᩘ್ィ⟬࡛෌⌧ࡍࡿࡇ࡜࡟ࡼࡾ࢖ࣥࣂ࣮ࢱᅇ㊰ࡢㅖ᮲௳ࡢ᭱㐺໬ࢆ᳨ウࡋࡓ⤖ᯝࢆሗ࿌ࡍࡿࠋ㻌

20

25

30

35

0
40

Io (A)

㻌㻲㼕㼓㻚㻌 㻞㻌 㻿㼕㼙㼡㼘㼍㼠㼑㼐㻌 㼞㼑㼟㼡㼘㼠㼟㻌 㼒㼛㼞㻌 㻭㻯㻌 㼏㼡㼞㼞㼑㼚㼠㻌 㼙㼍㼤㼕㼙㼡㼙㻌 㼍㼚㼐㻌㼑㼒㼒㼕㼏㼕㼑㼚㼏㼥㻌㼍㼟㻌㼍㻌㼒㼡㼚㼏㼠㼕㼛㼚㻌㼛㼒㻌㻰㻯㻌㼏㼡㼞㼞㼑㼚㼠㻌㻌䠑䠊䜎䛸䜑㻌䠍䠊㻴 䝤䝸䝑䝆ᅇ㊰䛻䛚䛔䛶㈇Ⲵ䠶䛻஺ὶ㟁ὶ䛾䜏䛜ὶ䜜䜛䚸䛔䜟䜖䜛䜲䞁䝞䞊䝍ືస䛜☜ㄆ䛷䛝䛯䚹㻌 㻌䠎䠊ṇᘻἼⓗ䛺஺ὶ㟁ὶ䛿㉸㟁ᑟ⣲Ꮚ䛾㟁ᅽⓎ⏕䛜እ㒊☢
ሙ䛻ᑐ䛧䛶㠀⥺ᙧⓗ䛺౫Ꮡᛶ䜢ᣢ䛴䛸䛝䛻ᚓ䜙䜜䛯䚹㻌䠏䠊䛒䜛ᐇຠⓗ䛺㜈್䜘䜚኱䛝䛺┤ὶ㟁ὶ䜢ὶ䛩䛸㈇Ⲵ䛾஺ὶ㟁ὶ䛿㠀⥺ᙧⓗ䛻ቑຍ䛧䛯䚹㻌䠐䠊㻵㼛㻩㻟㻡㻭 䛾┤ὶ䛛䜙 㻵㼦㻩㻝㻜㻭 䛾஺ὶኚ᥮䜢⾜䛖䛸䛝䚸㻌 㻴 䝤䝸䝑䝆ᅇ㊰䛾䝆䝳䞊䝹Ⓨ⇕䛿 㻝㻜㼙㼃 ⛬ᗘ䛸䛺䜛䚹㻌
䠑䠊㟁※䛾┤ὶ್ 㻵㼛 䛻ᑐ䛩䜛㈇Ⲵ㟁ὶ䛾䝢䞊䜽್䜢 㻵㼦 䛾ẚ㻵㼦㻛㻵㼛㻌 㻔㻑㻕 䜢 ኚ ᥮ ຠ ⋡ 䛸 ᐃ ⩏ 䛩 䜛 䛸 䚸 㻝㻜㻜㻑 䛻 䛺 䜛 ᮲ ௳ 䛿㻾㻭㼙㼍㼤㻛㻾㼦㻪㻝㻜㼊㻝㻥 䜢‶䛯䛩䛸䛝䛷䛒䜛䚹㻌― 192 ―

第83回

2010年度秋季低温工学・超電導学会

2D-a12

電力変換貯蔵㧗ㄪἼ㟁ὶ༳ຍ᫬䛾 㻰㻯 䝸䜰䜽䝖䝹⏝ 㼅㻮㻯㻻 䝖䝻䜲䝎䝹䝁䜲䝹䛾㻌㏻㟁≉ᛶ䛸஺ὶᦆኻ㻌㼀㼞㼍㼚㼟㼜㼛㼞㼠㻌㻯㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㻌㼍㼚㼐㻌㻭㻯㻌㻸㼛㼟㼟㻌㼕㼚㻌㼍㼚㻌㼅㻮㻯㻻㻌㼀㼛㼞㼛㼕㼐㼍㼘㻌㻯㼛㼕㼘㻌 㻌㼒㼛㼞㻌㻰㻯㻌㻾㼑㼍㼏㼠㼛㼞㻌㼣㼕㼠㼔㻌㻴㼍㼞㼙㼛㼚㼕㼏㻌㻯㼡㼞㼞㼑㼚㼠㻌㻌ὠ⏣㻌 ⌮䠈℈ᓥ㧗ኴ㑻㻌 䠄ᮾ໭኱Ꮫ䠅䠗ྂ℩㻌 ඘✑㻘㻌 ῡ㔝㻌 ಟ୍㑻㻌 䠄⏘⥲◊䠅㻧㻌 ཎ⏣㻌 ┤ᖾ㻘㻌 ᳜⏣㻌 Ύ㝯㻌 㻔ᒣཱྀ኱Ꮫ㻕䠗㻌 㻌୰ᓥ㻌 㧗ᖾ㻘㻌 ➉୰㻌 Ύ㻌 㻔㻰㻯㻯㻕㻌㼀㻿㼁㻰㻭㻌㻹㼍㼗㼛㼠㼛㻘㻌㻴㻭㻹㻭㻶㻵㻹㻭㻌㼀㼍㼗㼍㼠㼍㼞㼛㻌㻔㼀㼛㼔㼛㼗㼡㻌㼁㼚㼕㼢㻚㻕㻧㻌㻲㼁㻾㼁㻿㻱㻌㻹㼕㼠㼟㼡㼔㼛㻘㻌㻲㼁㻯㻴㻵㻺㻻㻌㻿㼔㼡㼕㼏㼔㼕㼞㼛㻌㻔㻭㻵㻿㼀㻕㻧㻌㻴㻭㻾㻭㻰㻭㻌㻺㼍㼛㼥㼡㼗㼕㻘㻌 㻌㼁㻱㻰㻭㻌㻷㼕㼥㼛㼠㼍㼗㼍㻌㻔㼅㼍㼙㼍㼓㼡㼏㼔㼕㻌㼁㼚㼕㼢㻚㻕㻧㻌㻺㻭㻷㻭㻶㻵㻹㻭㻌㼀㼍㼗㼍㼥㼡㼗㼕㻘㻌㼀㻭㻷㻱㻺㻭㻷㻭㻌㻷㼕㼥㼛㼟㼔㼕㻌㻔㻰㼑㼚㼞㼥㼛㼗㼡㻌㻯㼛㼙㼜㼡㼠㼕㼚㼓㻌㻯㼑㼚㼠㼑㼞㻘㻌㻸㼠㼐㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼠㼟㼡㼐㼍㻬㼑㼏㼑㼕㻚㼠㼛㼔㼛㼗㼡㻚㼍㼏㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
ᡃ䛜ᅜ䛾䝁䞁䝡䝘䞊䝖䛿䚸➇த⎔ቃ䛾⃭໬䛻䜘䜚ཝ䛧䛔⤒Ⴀ⎔ቃ䛻┤㠃䛧䛶䛚䜚䚸ᅜ㝿➇தຊ䛻⪏䛘䜙䜜䜛ຠ⋡ⓗ䛺⏕⏘యไ䜢ᵓ⠏䛩䜛䛻䛿䚸௻ᴗ䛾ᯟ䜢㉺䛘䛶༠ຊ䛧䚸䝁䞁䝡䝘䞊䝖඲య䛾┬䜶䝛໬䜔⤒㈝๐ῶ໬䛻ྲྀ䜚⤌䜐䛣䛸䛜㔜せ䛸䛺䜛䚹௨ୖ䜢㋃䜎䛘䚸ᡃ䚻䛿䚸䛣䜜䜎䛷䛻䚸ᨺᑕ≧஺ὶ⣔⤫䛷ᵓᡂ䛥䜜䜛䝁䞁䝡䝘䞊䝖㓄㟁⣔⤫䛻䛚䛔䛶䚸஺ὶ⣔⤫㛫䜢┤ὶ㐃⣔䛩䜛䛣䛸䛻䜘䜚䚸᭦䛺䜛┬䜶䝛໬䜔㧗ಙ㢗໬䛜ྍ⬟䛸䛺䜛䛣䛸䜢᫂䜙䛛䛻䛧䛶䛝䛯㼇㻝㼉䚹䛭䛣䛷䚸ᮏ◊✲䛷䛿䚸┤ὶ㐃⣔䛾᭷ຠᛶ䜢᳨ド䛩䜛䛯䜑䛻䚸ᖹ⁥䝸䜰䜽䝖䝹䛸䛧䛶 㼅㻮㻯㻻 䝔䞊䝥⥺䛛䜙ᡂ䜛䝎䝤䝹䝟䞁䜿䞊䜻䝁䜲䝹䛷ᵓᡂ䛥䜜䜛䝖䝻䜲䝎䝹䝁䜲䝹䜢⏝䛔䛯䚸┤ὶ㐃⣔㟁ຊ䝅䝭䝳䝺䞊䝍䜢〇స䛧䛯䚹䛭䛧䛶䚸㟁ຊ䝅䝭䝳䝺䞊䝍䛷┤ὶ㐃⣔䛩䜛㝿䛾䚸㼅㻮㻯㻻 䝖䝻䜲䝎䝹䝁䜲
䝹䛾㏻㟁≉ᛶ䛺䜙䜃䛻஺ὶᦆኻ≉ᛶ䛻䛴䛔䛶᳨ウ䛧䛯䚹㻌㻌㻞䠊㟁ຊ䝅䝭䝳䝺䞊䝍䛸 㼅㻮㻯㻻 䝖䝻䜲䝎䝹䝁䜲䝹㻌ᨺᑕ≧஺ὶ⣔⤫㛫䛾┤ὶ㐃⣔䛻䜘䜛┬䜶䝛ᛶ䜢᳨ド䛩䜛䛯䜑䛻䚸㻲㼕㼓㻚㻝 䛾ᵝ䛺䚸䜰䝘䝻䜾ᆺ 㻝䡇㼃 ⣭㟁ຊ䝅䝭䝳䝺䞊䝍䜢タィ䞉〇స䛧䛯䚹┤ὶ㐃⣔ไᚚ䛻䛿䝃䜲䝸䝇䝍ᅇ㊰䜢౑⏝䛧䚸ᖹ⁥䝸䜰䜽䝖䝹䛸䛧䛶䚸㻲㼕㼓㻚㻞 䛾ᵝ䛺䚸㖡⥺䛸㕲ᚰ䛷ᵓᡂ䛥䜜䜛ᖖ㟁ᑟ䝸䜰䜽䝖䝹䛸䚸㼅㻮㻯㻻 䝔䞊䝥⥺䛷ᵓᡂ䛥䜜䜛䝎䝤䝹䝟䞁䜿䞊䜻䝁䜲䝹 㻤 ಶ䜢┤ิ᥋⥆䛧䛯䝖䝻䜲䝎䝹䝁䜲䝹䜢᥇⏝䛧䛯䚹䝁䜲䝹䛻౑⏝䛧䛯 㼅㻮㻯㻻 䝔䞊䝥⥺䛿䚸ᖜ 㻠㼙㼙䚸ཌ䛥 㻜㻚㻜㻥㻞㼙㼙䛷䚸⾲㠃䛻 㻜㻚㻜㻞㼙㼙 䛾Ᏻᐃ໬㖡䛜᪋䛥䜜䛶䛔䜛䚹䛣䛾䝔䞊䝥⥺䜢⏝䛔䛶䚸ෆᚄ 㻣㻠㼙㼙䚸እᚄ 㻝㻠㻜㼙㼙䚸䝍䞊䞁ᩘ 㻞㻥㻡䚸䜲䞁䝎䜽䝍䞁䝇 㻝㻜㼙㻴 䛾䝎䝤䝹䝟䞁䜿䞊䜻䝁䜲䝹 㻤 ಶ䜢〇స䛧䛯䚹㻌㻌㻟䠊㼅㻮㻯㻻 䝖䝻䜲䝎䝹䝁䜲䝹䛾㏻㟁≉ᛶ䛸஺ὶᦆኻ㻌㻲㼕㼓㻚䠍䛾㟁ຊ䝅䝭䝳䝺䞊䝍䜢⏝䛔䛶䚸㼅㻮㻯㻻 䝖䝻䜲䝎䝹䝁䜲䝹䛾䜲䞁䝎䜽䝍䞁䝇䛜 㻡㻜㼙㻴 䛸 㻝㻜㻜㼙㻴 䛾ሙྜ䛻䛚䛡䜛䚸䝁䜲䝹㟁ὶ 㻥㻭 ᫬䛾㟁ὶ䞉㟁ᅽἼᙧ䜢 ᐃ䛧䛯䚹䛭䛾⤖ᯝ䜢 㻲㼕㼓㻚㻟 䛻♧䛩䚹䜎䛯䚸䛣䛾㟁ὶἼᙧ䛾ྛ࿘Ἴᩘᡂศ䛻ᑐ䛩䜛䝟䝽䞊䝇䝨䜽䝖䝹䜢 㻲㼕㼓㻚㻠 䛻♧䛩䚹㼅㻮㻯㻻 䝁䜲䝹㟁ὶ䛾㧗ㄪἼᡂศ䛿䚸㖡䝁䜲䝹䛾ሙྜ䛸䜋䜌ྠ䛨䛷䛒䜚䚸䝁䜲䝹䛾䜲䞁䝎䜽䝍䞁䝇ቑຍ䛻క䛳䛶㧗ㄪἼᡂศ䛜ῶᑡ䛩䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹䛣䜜䜘䜚䚸ᚑ᮶䛾ᖹ⁥䝸䜰䜽䝖䝹䛾タィ᪉ἲ䛜 㼅㻮㻯㻻 䝁䜲䝹䛻䜒㐺⏝ྍ⬟䛷䛒䜛䛣䛸䛜䜟䛛䛳䛯䚹䜎䛯䚸㻲㼕㼓㻚㻟 䛾㟁ᅽ䞉㟁ὶἼᙧ䜘䜚┤ὶ㐃⣔᫬䠄㻥㻭䠅䛾ᦆኻ䜢ホ౯䛧䛯䛸䛣䜝䚸㖡䝁䜲䝹䛷䛿䚸㻡㻜㼙㻴 ᫬䛷 㻞㻢㻚㻠㼃䚸㻝㻜㻜㼙㻴 ᫬䛷 㻡㻡㻚㻣㼃 䛸䚸䝁䜲䝹䛾䜲䞁䝎䜽䝍䞁䝇ቑຍ䛻ᑐ䛧䛶ᦆኻ䛜ቑຍ䛧䛯䛾䛻ᑐ䛧䚸㼅㻮㻯㻻 䝁䜲䝹䛷䛿䚸㻡㻜㼙㻴᫬䛷 㻝㻚㻣㼃䚸㻝㻜㻜䡉㻴 ᫬䛷 㻜㻚㻡㼃 䛸䚸䝁䜲䝹䛾䜲䞁䝎䜽䝍䞁䝇ቑຍ䛻ᑐ䛧䚸ᦆኻ䛜ῶᑡ䛩䜛䛣䛸䛜☜ㄆ䛥䜜䛯䚹䜎䛯䚸ᖹ⁥䝁䜲䝹䛻 㼅㻮㻯㻻 䝁䜲䝹䜢᥇⏝䛩䜛䛣䛸䛻䜘䜚䚸ᦆኻ䜢኱ᖜ䛻๐ῶ䛷䛝䜛䛣䛸䛜䜟䛛䛳䛯䚹௒ᚋ䛿䚸㧗ㄪἼ㟁ὶ䛻ᑐ䛩䜛 㼅㻮㻯㻻 䝁䜲䝹䛾ᦆኻⓎ⏕䝯䜹䝙䝈䝮䜢᫂䜙䛛䛻䛧䛶䛔䛟ணᐃ䛷䛒䜛䚹㻌

Fig. 1 Schematic drawing of a power system simulator with DC
interconnection.



Fig. 2 DC model reactors composed of conventional copper coiland YBCO toroidal coil (8 double pancake coils).

Fig. 3 Waveforms of voltage and current in YBCO toroidal coil at
DC current of 9A and inductance of 50 mH and 100 mH.

㻌

ཧ⪃ᩥ⊩㻌
㻝㻚㻌㻹㻚㻌㼀㼟㼡㼐㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㼀㼔㼑㻌㻼㼍㼜㼑㼞㼟㻌㼛㼒㻌㻶㼛㼕㼚㼠㻌㼀㼑㼏㼔㼚㼕㼏㼍㼘㻌㻹㼑㼑㼠㼕㼚㼓㻌㼛㼚㻌㻼㼛㼣㼑㼞㻌 㻱㼚㼓㼕㼚㼑㼑㼞㼕㼚㼓㻌 㼍㼚㼐㻌 㻼㼛㼣㼑㼞㻌 㻿㼥㼟㼠㼑㼙㼟㻌 㻱㼚㼓㼕㼚㼑㼑㼞㼕㼚㼓㻘㻌 㻵㻱㻱㻌㻶㼍㼜㼍㼚㻘㻌㻼㻱㻙㻝㻜㻙㻜㻜㻣㻘㻌㻼㻿㻱㻙㻝㻜㻙㻜㻡㻝㻌㻔㻞㻜㻝㻜㻕㻌㼜㻚㻟㻥

Fig. 4 Power spectrums of operating current with harmoniccomponents in YBCO toroidal coil at 50mH and 100mH.

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第83回

2010年度秋季低温工学・超電導学会