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Development of a 1 kWh-class module-type SMES-design study

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11 Author(s)
T. Imayoshi ; Kyushu Electric Power Co. Inc., Fukuoka, Japan ; H. Kanetaka ; H. Hayashi ; K. Honda
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The authors are planning to build a 1 kWh/1 MW (maximum stored energy/maximum power capability) module-type SMES (named ESK; experimental SMES of Kyushu Electric Power) as a first step towards the realization of practical SMESs for power line control. The main points of the design are those of: module-type coils for the development of SMES capacity scale-up; the choice of low loss stranded cables for reducing pulse operating loss; the choices of modified D shape coils and the reduction of stresses in the conductor-which become more serious in scaling-up and high-T/sub c/ superconductor (HTSC) current leads for covering weak points due to thermal loss in a module-type SMES which need many current leads. Some other points are also studied such as the design of the cooling system in which a single coil quench does not induce that of others, and harmonics suppression in the SMES power converter system.

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IEEE Transactions on Applied Superconductivity  (Volume:7 ,  Issue: 2 )