Electric Power Equipment Division
Realizing spread of HTS electric power equipments using Coated Conductors
Conceptual illustration of Superconducting equipment
This work is supported by the New Energy and Industrial Technology Development Organization (NEDO)
Research themes
- Development of HTS practical power equipments using Coated Conductors
- SMES
- Power Cables
- Power Transformer
Feature of HTS Equipment
(1),Compact
(2),High power density
(3),Low loss, High efficiency
- SMES
- Purpose
- Development of high-magnetic-field/high-current compact coil for 2GJ-class SMES
- High-efficiency coil conduction cooling technology Verification of a high-magnetic-field compact SMES system model
- Target,R&D
- 2GJ class coil enduring high magnetic field & large current
- Hoop stress endurance 600MPa
- Large current endurance 2kA<
- Efficient conductive cooling technology
- At 20～40K
- Electric insulation 2kV<
- wire for SMES
- Verification of model coil enduring high magnetic field for SMES system
- Member
- ISTEC ,Chubu Electric Power Co.,INC ,Furukawa Electric Co.,LTD ,Waseda Univ. ,Nagoya Uni. Kyoto Univ. ,Kyushu Univ. ,Kagoshima Univ. etc.
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- HTS Power Cables
- Purpose
- Large power transmission through a compact cable
- Reduction of transmission losses (1/2-1/3)
- Saving energy, Suppressing global warming
- Target,R&D
- 3-core in one pipe / 66kV-5kA,15m long cable with a terminal joint
- Loss reduction:2.1W/m@5kA (*)
- Protection against over current 31.5kA-2Sec.
- single-core in one pipe / 275 kV-3 kA, 30 m long cable with a terminal joint and intermediate Joints
- Loss reduction :0.8W/m@3kA (*)
- Protection against over current 63kA-0.6Sec.
- Member
- ISTEC ,Sumitomo ,Electric Industries,Ltd. ,Furukawa Electric ,Fujikura Ltd. ,SWCC SHOWA CABLE SYSTEMS CO.,LTD. ,Mayekawa Mfg. Co.,Ltd. ,JFCC ,Kyoto Univ. ,Waseda Univ.
(*)Including HTS conductor ,Shield, and dielectric losses
- HTS Power Transformer
- Purpose
- Design study of 66kV/6kV 20MVA HTS power transformer
- Fabrication and Tests of 2MVA HTS power transformer model with LN2 cooling system
- Fault current limiting function
- Target,R&D
- Winding technology for HTS power transformer
- Loss reduction ≦ 1/3
- 2kA class large current
- Cooling system technology
- Refrigeration power : 2kW@65K
- Refrigeration efficiency : 0.06@80K
- Current limiting technology
- Verification of 100kVA class model
- Y based wire development for the transformers
- 5㎜ wide of 3 filaments : Ic=40A@65K&0.01T
- Fabrication and verification of 2MVA class system
- Member
- ISTEC ,Kyushu Electric Power CO.,INC ,TAIYO Nippon SANSO Corporation ,Fujikura Ltd. ,SWCC SHOWA CABLE SYSTEMS CO.,LTD. ,JFCC ,Kyushu Univ. ,Iwatw Univ.
Key papers
- 藤原昇：「超電導高効率送電技術」,電気評論(2008年7月号),49-53P
