2S-p01

論文賞受賞記念講演㧗 ㉸㟁ᑟㄏᑟ䠋ྠᮇᶵ䛾Ⓨ㟁≉ᛶ䛻㛵䛩䜛ᇶ♏◊✲㻌
Fundamental Study on Generation Characteristics of a HTS
Induction/Synchronous Machine㻌୰ᮧ㻌 Ṋᜏ䠈ᑠⵦ㻌 ⩏ኵ䠈ᯇᮧ㻌 ୍ᘯ䠈すᮧ㻌 ᩄ἞㻌 㻔ி኱㻕䠗㻌 㮵ᓥ㻌 ┤஧䠈㛗ᒇ㻌 㔜ኵ㻌 㻔୰㒊㟁ຊ㻕㻌
NAKAMURA Taketsune, OGAMA Yoshio, MATSUMURA Kazuhiro, NISHIMURA Toshiharu (Kyoto Univ.);
KASHIMA Naoji and NAGAYA Shigeo (Chubu Electric Power Co.)㻝㻚㻌 䛿䛨䜑䛻㏆ᖺ䠈㧗 ㉸㟁ᑟ⥺ᮦ䛾ᛶ⬟ྥୖ䜢⫼ᬒ䛻䠈ྠ⥺ᮦ䜢㐺⏝䛧䛯ᕳ⥺ᙧྠᮇᶵ䛾◊✲㛤Ⓨ䛜㐍䜑䜙䜜䛶䛔䜛䚹≉䛻䠈⎔ቃၥ㢟ព㆑䛾㧗䜎䜚䛾୰䛷䠈 10 MW 䜢㉸䛘䜛኱ᐜ㔞䝎䜲䝺䜽䝖䝗䝷䜲䝤㢼ຊⓎ㟁⏝㧗 ㉸㟁ᑟᅇ㌿ᶵ䛾◊✲㛤Ⓨ䛜ᅜෆእ䛷⢭ຊⓗ䛻ᐇ᪋䛥䜜䛶䛔䜛[1-5]䚹䜎䛯䠈䝰䞊䝍ᛂ⏝䛻䛚䛔䛶䜒䠈䝅䝇䝔䝮䛾⥲ྜຠ⋡ᨵၿ䛾ほⅬ䛛䜙䠈ᅇ⏕䛾฼⏝䛿ᴟ䜑䛶᭷ຠ䛸⪃䛘䜙䜜䠈༶䛱㧗ຠ⋡Ⓨ㟁ືస䛾᳨ウ䛿㔜せ䛺ᢏ⾡㛤Ⓨㄢ㢟䛷䛒䜛䚹㧗 ㉸㟁ᑟᅇ㌿ᶵ䜢㛤Ⓨ䛩䜛㝿䛾䝍䞊䝀䝑䝖䛿䠈෭༷䝁䝇䝖䜢⿵䛳䛶వ䜚䛒䜛䛰䛡䛾㧗ᛶ⬟໬䛺䜙䜃䛻㧗ᶵ⬟໬䛷䛒䜛䚹䛣䛾䛣䛸䛻㛵䛧䛶䛿䠈኱ᐜ㔞ᶵ䜢ᣦྥ䛩䜛䛣䛸䛻䜘䜚䠈෭༷ᦆኻ䜢ྵ䜑䛶䜒䝇䜿䞊䝹䝯䝸䝑䝖䜢⏕䛛䛧䛯㧗ຠ⋡໬䛜㐩ᡂྍ⬟䛸⪃䛘䜙䜜䜛䚹䛥䜙䛻䛿䠈㧗☢⏺Ⓨ⏕䛸↓㕲ᚰ໬䛻క䛖ᑠᆺ㍍㔞໬䜔ྠᮇ䝸䜰䜽䝍䞁䝇పῶ䛺䛹䛜ᮇᚅ䛥䜜䛶䛔䜛䚹ᅇ㌿ᶵ䜢㥑ືཎ⌮䛻ᇶ䛵䛔䛶ᩍ⛉᭩ⓗ䛻ศ㢮䛩䜛䛸䠈኱䛝䛟┤ὶᶵ䠈ྠᮇᶵ䠈ㄏᑟᶵ䛻ศ䛡䜙䜜䜛䚹㏆ᖺ䛷䛿䠈Ọஂ☢▼⏺☢䛾ᅇ㌿ᶵ䜒㛤Ⓨ䛥䜜䛶䛚䜚䠈ไᚚἲ䛾㐍ᒎ䛻┦ಗ䛳䛶ୖグศ㢮䛜䜔䜔୙᫂░䛻䛺䛳䛶䛔䜛䛜䠈ᑠᙧᶵᛂ⏝䜢୰ᚰ䛸䛧䛶ᡃ䚻䛾⏕ά䛻ᾐ㏱䛧䛶䛚䜚䠈௒ᚋ䛾䛥䜙䛺䜛㐍ᒎ䛜ᮇᚅ䛥䜜䜛ᛂ⏝ศ㔝䛷䛒䜛䚹୍᪉䠈⌧ᅾ䛾ỗ⏝ᅇ㌿ᶵ䠄≉䛻䝰䞊䝍䠅䛸䛧䛶᭱䜒ᗈ䛟౑⏝䛥䜜䛶䛔䜛䛾䛿ㄏᑟᶵ䠄≉䛻䛛䛤ᙧㄏᑟᶵ䠅䛷䛒䜛䚹ྠᅇ㌿ᶵ䛿䠈ᵓ㐀䛜⡆༢䠈ಖᏲ䛜ᐜ᫆䠈኱㔞⏕⏘ྥ䛝䠈Ᏻ౯௚䛾⌮⏤䛻䜘䜚䠈ศᩘ㤿ຊ䝰䞊䝍䛛䜙㕲㐨㌴୧⏝୺㟁ືᶵ䠈ẚ㍑ⓗᑠᐜ㔞䛾㢼ຊⓎ㟁ᶵ䛺䛹ከᵝ䛺ศ㔝䛻䛚䛔䛶౑⏝䛥䜜䛶䛔䜛䚹䛣䛾䛣䛸䛿䠈ᅇ㌿ᶵ㛤Ⓨ䛾Ṕྐ䛾୰䛷䠈ㄏᑟᶵ䛾ୖグ䝯䝸䝑䝖䛜㔜せ䛷䛒䜛䛣䛸䜢᫂䜙䛛䛻♧䛧䛶䛔䜛䜒䛾䛷䛒䜛䚹ᚑ䛳䛶䠈㉸㟁ᑟᅇ㌿ᶵ㛤Ⓨ䛻䛚䛔䛶䜒䠈≉Ṧᛂ⏝䜢㝖䛔䛶䛒䜛⛬ᗘ䛾ỗ⏝ᛶ䜢ᣦྥ䛩䜛䛺䜙䜀䠈䛣䛾䛣䛸䜢᭱኱㝈⪃៖䛧䛯◊✲㛤Ⓨ䛜ᮃ䜎䜜䜛䚹ᡃ䚻䛿䠈䛛䛤ᙧㄏᑟᶵ䜢ᑐ㇟䛸䛧䠈䛭䛾䝯䝸䝑䝖䜢᭱኱㝈䛻ᑛ㔜䛧䛴䛴䠈㧗 ㉸㟁ᑟᮦᩱ䛻䜘䛳䛶䛥䜙䛺䜛䝤䝺䞊䜽䝇䝹䞊䜢㐩ᡂ䛩䜉䛟᳨ウ䜢㐍䜑䛶䛔䜛䚹䛣䜜䜎䛷䛾⌮ㄽⓗ䛛䛴ᐇ㦂ⓗ᳨ウ䛻䜘䛳䛶䠈ᇶᮏⓗ䛻䛛䛤ᙧㄏᑟᶵ䛾 2 ḟഃᕳ⥺䜢㧗 ㉸㟁ᑟ໬䛩䜛䛰䛡䛷䠈䐟 䛩䜉䜚䛺䜙䜃䛻ྠᮇᅇ㌿䛾୧❧ᛶ䠈䐠 ྠᮇ㐠㌿䛻క䛖㧗ຠ⋡໬䠈䐡 ኱䛝䛺ጞື䛺䜙䜃䛻ຍ㏿䝖䝹䜽䠈䐢 㧗ฟຊᐦᗘ໬䐣 㐣㈇Ⲵ䛻ᑐ䛩䜛䝻䝞䝇䝖ᛶ௚䛾ඃ䜜䛯≉ᛶ䛜ᚓ䜙䜜䜛䛣䛸䜢⌮ㄽⓗ䛺䜙䜃䛻୍㒊ᐇ㦂ⓗ䛻᫂䜙䛛䛻䛧䛶䛝䛯[6]䚹䛣䜜䜙䛾≉ᛶ䛿䠈᪤Ꮡ䠄ᖖఏᑟ䠅ᅇ㌿ᶵ䛷䛿㐩ᡂ୙ྍ⬟䛷䛒䜚䠈┿䛻㧗 ㉸㟁ᑟᮦᩱ䛾ほⅬ䛛䜙䛾䝤䝺䞊䜽䝇䝹䞊䛸⪃䛘䜙䜜䜛䚹ᡃ䚻䛿䠈ୖグᅇ㌿ᶵ䜢㧗 ㉸㟁ᑟㄏ ᑟ 䠋 ྠ ᮇ ᶵ 䠄 High Tc Superconducting Induction/Synchronous Machine: ௨ୗ HTS-ISM䠅䛸࿧䜣䛷䛚䜚䠈䛥䜙䛺䜛㧗ᛶ⬟໬䞉㧗ᶵ⬟໬䜢㐩ᡂ䛩䜉䛟᳨ウ䜢㐍䜑䛶䛔䜛䚹䜎䛯䠈௚◊✲ᶵ㛵䛸䛾ඹྠ◊✲䜢㏻䛧䛶䠈ᛂ⏝◊✲䜢⾜䛳䛶䛔䜛䚹
ᮏㅮ₇䛷䛿䠈HTS-ISM 䜢Ⓨ㟁ᶵ䛸䛧䛶㐠㌿䛧䛯ሙྜ䛾ᇶ♏
≉ᛶ䜢᳨ウ䛧䛯䚹༶䛱䠈HTS-ISM 䛾ྠᮇᅇ㌿䝰䞊䝗䜢฼⏝䛩䜜䜀䠈䜶䝛䝹䜼䞊䛾㏫ኚ᥮䛸䛧䛶㧗ຠ⋡䛺ྠᮇⓎ㟁䜒ྍ⬟䛸ᮇᚅ䛥䜜䜛䚹ᮏሗ࿌䛷䛿䠈ୖグⓎ㟁䛾ᴫᛕ䛸ᇶ♏ⓗᐇ㦂⤖ᯝ䜢♧䛧䠈௒ᚋ䛾ྍ⬟ᛶ䜢㆟ㄽ䛩䜛[7]䚹㻞㻚㻌 㧗 ㉸㟁ᑟㄏᑟ䠋ྠᮇᶵ䛾ཎ⌮㻌
Fig. 1 䛻䛿䠈HTS-ISM 䛾䝖䝹䜽䠄W䠅vs. 䛩䜉䜚䠄s䠅≉ᛶ䜢ᶍᘧⓗ䛻♧䛩䚹䛣䛣䛷䠈Ns 䜢ྠᮇᅇ㌿ᩘ䠈N 䜢ᅇ㌿Ꮚᅇ㌿ᩘ䛸䛩䜛䛸䠈䛩䜉䜚䛿 s=(Ns-N)/Ns 䛸ᐃ⩏䛥䜜䜛䚹䛴䜎䜚䠈s=1䠈0䠈-1 䛿䠈䛭䜜䛮䜜ᅇ㌿Ꮚ䛜೵Ṇ䠈ྠᮇᅇ㌿䠈䛚䜘䜃ྠᮇᅇ㌿ᩘ䛾 2 ಸ䛷ᅇ㌿䛧䛶䛔䜛䛣䛸䜢⾲䛧䛶䛔䜛䚹ྠᮇᶵ䛿䠈s= 0䛾㍈ୖ䛷䛾䜏䝖䝹䜽䛜ᐃ⩏䛥䜜䜛䚹䛭䜜䛻ᑐ䛧䠈◚⥺䛿᪤Ꮡ䠄ᖖఏᑟ䠅ㄏᑟᶵ䛾≉ᛶ䛷䛒䜚䠈s= 0 ௨እ䛾䛩䜉䜚㡿ᇦ䛷䛾䜏䝖䝹䜽䜢᭷䛩䜛䚹ྠᅗ䛻♧䛩䜘䛖䛻䠈0<s<1 䛷䛿㟁ືᶵືస䠈-1<s<0 䛷䛿Ⓨ㟁ᶵືస䛸䛺䜛䚹ᚑ䛳䛶䠈Ⓨ㟁䝰䞊䝗䛷㐠㌿䛩䜛䛯䜑䛻䛿䠈ྠᮇ㏿ᗘ䜢㉸䛘䜛ᅇ㌿ᩘ䛷ᅇ㌿䛥䛫䠈䛛䛴୍ḟഃ䜢ບ☢䛩䜛ᚲせ䛜䛒䜛䚹୍᪉䠈HTS-ISM 䛷䛿䠈ྠᅗ䛻♧䛩䜘䛖䛻ㄏᑟ䛺䜙䜃ྠᮇ䝖䝹䜽䛾୧⪅䜢᭷䛧䛶䛔䜛䚹䜎䛯䠈₃䜜䝸䜰䜽䝍䞁䝇䜔୍ḟᕳ⥺᢬ᢠ䛸䛾ව䛽ྜ䛔䛻䜒䜘䜛䛜䠈䛛䛤ᙧᕳ⥺䛾స〇᮲௳䛻䜘䛳䛶䛿ᅗ䛻♧䛩ᐃ䝖䝹䜽䛻㏆䛔ᆶୗຍ㏿≉ᛶ䛜ᚓ䜙䜜䜛䚹ୖグ≉ᛶ䛿䠈᪤䛻⌮ㄽⓗ䞉ᐇ㦂ⓗ䛻ᐇド䛥䜜䛶䛔䜛䚹ᚑ䛳䛶䠈HTS-ISM 䛾ୖグྠᮇᅇ㌿≉ᛶ䜢฼⏝䛩䜜䜀䠈Ⓨ㟁ືస䛜ྍ⬟䛸ᮇᚅ䛥䜜䜛䚹༶䛱䠈HTS-ISM 䛻ᶵᲔⓗධຊ䜢୚䛘䠈
Fig. 1 䛻䛚䛡䜛㈇䛾ྠᮇ䝖䝹䜽㡿ᇦ䜢฼⏝䛩䜛䛣䛸䛻䜘䛳䛶䠈ྠᮇⓎ㟁ᶵ䛸䛧䛶౑⏝ྍ⬟䛸⪃䛘䜙䜜䜛䚹
Torque䠄W䠅
HTS-ISM

Generator mode

Conventional
induction
machine-|sm|1|sm|0-1

Slip (s)Motor mode

Fig. 1 Schematic illustration of the torque (W) vs. slip (s) curveof HTS-ISM. The curve of a conventional (normal)
conducting machine is also shown for comparison [7].

Fig. 2 Photograph of the HTS rotor fabricated with
Bi-2223/Ag tape conductors [7].

㻌― 240 ―第83回

2010年度秋季低温工学・超電導学会

2S-p01/ kW

23.7 A

2000

N

0.8 Synchronous speed (1,800 rpm)

1500

Generated power P

out

20

1Input voltage turned on

0-20-40-60
0.0-51.2 A
0.5
1.0Elapsed time t / s0.6
1000
0.4

500

0.2
00.0

1.5

PoutRotation speed N / rpm

Primary current i1 / A40

論文賞受賞記念講演

00.2
0.4
0.6
0.8
1.0
1.2
Mechanical input of DC motor P / kW
inFig. 3 Primary current waveform (i1) for the sudden applicationof the rated line voltage (V1= 200 V) [7].
䛺䛚䠈ୖグ㆟ㄽ䛿 HTS 䛛䛤ᕳ⥺䛜⌮᝿ⓗ䛺䝊䝻᢬ᢠ䝹䞊䝥䛷䛒䜛䛣䛸䜢๓ᥦ䛸䛧䛯㆟ㄽ䛷䛒䜛䚹䛧䛛䛧䛺䛜䜙䠈⌧≧䝻䞊䝍䝞䞊䛸䜶䞁䝗䝸䞁䜾䜢䝝䞁䝎᥋⥆䛧䛶䛚䜚䠈ⱝᖸ䛾᥋⥆᢬ᢠ䛜Ꮡᅾ䛩䜛䚹䛯䛰䛧䠈ᮏᅇ㌿ᶵ䛿䠈୍ḟഃ䛛䜙ᖖ䛻㉳☢ຊ䛜౪⤥䛥䜜䛶䛛䛴䛛䛤ᙧᕳ⥺୰䛾ṇ࿡䛾☢᮰䛜୍ᐃ䛷䛒䜜䜀ྠᮇᅇ㌿ྍ⬟䛷䛒䜛䛣䛸䛜ศ䛛䛳䛶䛔䜛䚹㻟㻚㻌 ᐇ㦂᪉ἲ㻌Fig. 2 䛻䛿䠈ヨస䛧䛯 HTS ᅇ㌿Ꮚ䛾୍౛䜢♧䛩䚹ᮏᅇ㌿ᶵ
䛿䠈Bi-2223/Ag 䝔䞊䝥ᮦ䠄2.0 mmw㽢0.2 mmt䠅䜢౑⏝䛧䛶䛚䜚䠈77 K䞉⮬ᕫ☢ሙ䛻䛚䛡䜛⮫⏺㟁ὶ䛿 25 A ⛬ᗘ䛷䛒䜛䚹ୖグ䝔䞊䝥ᮦ䜢ᡤᮃ䛾㟁ὶᐜ㔞䛜ᚓ䜙䜜䜛䜘䛖」ᩘᯛ᮰䛽䠈䝻䞊䝍䝞䞊䛸䛧䛯䚹䜎䛯䠈ྛ䝻䞊䝍䝞䞊䛻䛿෭༷䛸⿵ᙉ䜢ව䛽䛶㖡ᖏ䠄2
㽢3 mm2䠅䜢 2 ᮏ䝞䞁䝗䝹䛧䛶䛔䜛䚹HTS 䝻䞊䝍䜢ヨసᚋ䠈䝅䝱䝣䝖䛾䝧䜰䝸䞁䜾䜸䜲䝹䜢䜰䝉䝖䞁䛷㝖ཤ䛧䠈෭༷䛻క䛖෾⤖㜵Ṇ䜢ᅗ䛳䛯䚹䛺䛚䠈ᅛᐃᏊ䛻䛿᪤Ꮡ䛾㖡ᕳ⥺䠄3 ┦ 4 ᴟ䠈200 V䠅䜢౑⏝䛧䠈ᾮయᾐₕ෭༷ᚋ䛻ྛ✀ヨ㦂䜢ᐇ᪋䛧䛯䚹㻠㻚㻌 ⤖ᯝ䛸⪃ᐹ㻌㻌㻠㻚㻝㻌 ᐃ᱁㟁ᅽ┤ධ᫬䛾Ⓨ㟁≉ᛶ㻌
Fig. 3 䛻䛿䠈┤ὶᶵ䛻䜘䛳䛶 HTS-ISM 䜢ྠᮇᅇ㌿䛥䛫䠈䛭䛾ᚋᐃ᱁㟁ᅽ䠄200V䠅䜢┤ධ䜜䠄t= 0.580s䠅䛧䛯ሙྜ䛾୍ḟ㟁ὶ
䠄i1䠅ኚ໬䜢♧䛩䚹ྠᅗ䛛䜙᫂䜙䛛䛺䜘䛖䛻䠈୍ḟ㟁ὶ䛿➨୍Ἴ䠄t= 0.586s䠅䛷-51.2A 䛻䜎䛷㐩䛧䠈䛭䛾ᚋ䜒 t= 0.642s 䛻䛚䛔䛶
23.7A 䛸䛺䛳䛶䛔䜛䚹䛣䜜䜙䛾್䛿䠈HTS 䝻䞊䝍䝞䞊䛻ᐇ㝿䛻ὶ䜜䛶䛔䜛㟁ὶ್䛻᥮⟬䛩䜛䛸䠈䛭䜜䛮䜜-1,367A䠈633A 䛷䛒䛳䛯䚹༶䛱䠈HTS 䝻䞊䝍䝞䞊䛾⮫⏺㟁ὶ್䛜 100A ⛬ᗘ䛷䛒䜛䛣䛸䜢⪃៖䛩䜛䛸䠈▷᫬㛫䛺䛜䜙ᴟ䜑䛶኱䛝䛺㟁ὶ䛜ὶ䜜䛶䛔䜛䛣䛸䛻䛺䜛䚹䜎䛯䠈ྠᵝ䛾ヨ㦂䜢 3 ᅇ⛬ᗘ㐃⥆䛧䛶ᐇ᪋䛧䛯䛜䠈HTS-ISM 䛻䛿඲䛟␗ኚ䛿ぢ䜙䜜䛺䛛䛳䛯䚹ᚑ䛳䛶䠈ᑡ䛺䛟䛸䜒ᮏヨ㦂᮲௳䛷䛿䠈䛯䛸䛘ᐃ᱁㟁ᅽ䜢┤ධ䜜䛧䛯䛸䛧䛶䜒䠈HTS-ISM 䛜೺඲䛷䛒䜛䛣䛸䛜♧䛥䜜䛯䚹㻠㻚㻞㻌 㧗ฟຊ໬䛾᳨ウ㻌
Fig. 4 䛻䛿䠈Ⓨ㟁ヨ㦂⤖ᯝ䛾୍౛䜢♧䛩䚹ྠᅗ䛻䛚䛔䛶䠈ᶓ㍈䛿 DC 䝰䞊䝍䛾ᶵᲔධຊ䛷䛒䜚䠈⦪㍈䛿㧗ฟຊ HTS-ISM 䛾ᅛᐃᏊᕳ⥺䛻䛚䛡䜛ฟຊ㟁ຊ䛷䛒䜛䛜䠈୧⪅䛿䜋䜌ẚ౛䛧䛶ቑຍ䛧䛶䛔䜛䚹䛣䛾᫬䠈HTS-ISM 䛿ᖖ䛻ྠᮇᅇ㌿ᩘ䠄1,800 rpm䠈䛩䜉䜚 0䠅䛷ᅇ㌿䛧䛶䛔䛯䚹䛴䜎䜚䠈ᮏヨ㦂⤖ᯝ䛛䜙䠈HTS-ISM䛾ྠᮇⓎ㟁≉ᛶ䛜᫂☜䛻ᐇド䛥䜜䛯䚹Fig. 4 Typical test result of synchronous generation
characteristic of a high-output HTS-ISM at 77 K. The
rotating speed is set at 1,800 rpm [7].
㻡䠊⤖ㄽ㻌ᮏ◊✲䛷䛿䠈ி㒔኱Ꮫ䛾䜾䝹䞊䝥䛜㛤Ⓨ䛧䛶䛔䜛HTS-ISM 䜢Ⓨ㟁ືస䛥䛫䛯ሙྜ䛾ᇶ♏≉ᛶ䛻䛴䛔䛶䠈䛭䛾ཎ⌮ⓗ⪃䛘᪉䛸ᇶ♏ヨ㦂⤖ᯝ䜢ሗ࿌䛧䛯䚹䜎䛪䠈HTS-ISM 䛾㥑ືཎ⌮䛸䝯䝸䝑䝖䜢ㄝ᫂䛧䛯䛒䛸䠈㧗ຠ⋡䛺ྠᮇⓎ㟁䛾⪃䛘᪉䛸ྍ⬟ᛶ䜢䝖䝹䜽䠉䛩䜉䜚≉ᛶ䛻ᇶ䛵䛔䛶㆟ㄽ䛧䛯䚹䜎䛯䠈౛䛘䜀㢼ຊⓎ㟁䛻䛚䛡䜛 AC 䝸䞁䜽䜢᝿ᐃ䛧䠈HTS-ISM 䜈䛾୙㐃⥆ⓗບ☢䛸✺ධ㟁ὶ䛾㛵ಀ䜢ᐇ㦂ⓗ䛻᳨ウ䛧䠈ᑡ䛺䛟䛸䜒ᾮయ❅⣲ᾐₕ෭༷᮲௳ୗ䛷䛿೺඲䛻ືసྍ⬟䛷䛒䜛䛣䛸䜢᫂䜙䛛䛻䛧䛯䚹䛥䜙䛻䛿䠈HTS-ISM 䛾ྠᮇⓎ㟁≉ᛶ䜢ᐇド䛩䜛䛣䛸䛻ᡂຌ䛧䛯䚹௒ᚋ䛿䠈䛥䜙䛺䜛㧗ฟຊ໬䛿䜒䛸䜘䜚䠈ప㏿ᅇ㌿᫬䛾≉ᛶ᳨ド䠈෭༷ἲ䛾᳨ウ䠈᭱㐺タィᡭἲ䛾☜❧䜔ไᚚἲ䜢ྵ䜑䛶䠈䝅䝇䝔䝮䛸䛧䛶䛾ᡂ❧ᛶ䜢᫂䜙䛛䛻䛧䛶䛔䛝䛯䛔䚹㻌ㅰ㎡㻌ᮏ◊✲䛾୍㒊䛿䠈䜹䝅䜸⛉Ꮫ᣺⯆㈈ᅋ䛺䜙䜃䛻⛉Ꮫ◊✲㈝⿵ຓ㔠䠄㻺㼛㻚㻌 㻞㻜㻡㻢㻜㻞㻢㻤䠅䛾᥼ຓ䜢ཷ䛡䛯䚹䜎䛯䠈ฟ∧䛻㝿䛧䛶䛿䠈㟁Ẽ஦ᴗ㐃ྜ఍ጤク஦ᴗ䛂䝟䝽䞊䜰䜹䝕䝭䞊◊✲䝬䝑䝥ᣑ඘䞉Ⓨᒎ䛾䛯䜑䛾ㄪᰝ◊✲䛃䛾᥼ຓ䜢ཷ䛡䛯䚹㻌㻌ཧ⪃ᩥ⊩㻌[1] N. Maki, J. Phys.: Conf. Ser., vol. 97 (2008) 012155[2] H. Ohsaki, Y. Terao and M. Sekino, J. Phys.: Conf. Ser., vol.
234, (2010) 032043[3] ⚟஭⪽䠈Ⲩᕝ◊ே䠈ᑠᕝ⣧䠈బ⸨Ꮥ㞝䠈ሯᮏಟᕭ䠈㮵ᓥ┤஧䠈㛗ᒇ㔜ኵ㻘㻌 ➨ 㻤㻞 ᅇ䠎㻞㻜㻝㻜 ᖺᗘ᫓Ꮨప ᕤᏛ䞉㉸㟁ᑟᏛ఍ㅮ₇ᴫせ㞟 (2010) 131[4] C. Lewis and J. Müller, Power Engineering Society GeneralMeeting, IEEE (2007) 1[5] P. J. Masson, J. Lammers and V. Prince, Applied
Superconductivity Conference 2010, Washington D.C.
(2010) 1LA-04[6] T. Nakamura, Y. Ogama, H. Miyake, K. Nagao and T.
Nishimura, Supercond. Sci. Technol. 20 (2007) 911[7] ୰ᮧṊᜏ䠈ᑠⵦ⩏ኵ䠈ᯇᮧ୍ᘯ䠈すᮧᩄ἞䠈㛗ᑿ࿴ᫀ䠈㮵ᓥ┤஧䠈㛗ᒇ㔜ኵ㻘㻌 ప ᕤᏛ㻘㻌 vol. 44, no. 3 (2009)112― 241 ―

第83回

2010年度秋季低温工学・超電導学会