Test Results of Elementaly Coils for Toroidal SMES

  • H. Hayashi
  • T. Imayoshi
  • H. Kanetaka
  • Y. Yamamoto
  • F. Irie
  • T. Ezaki
  • M. Takeo
  • S. Ioka
  • K. Asano
  • S. Nose
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 43)

Abstract

Our experimental SMES of 1kWh/1MW named “ESK” (Experimental SMES of Kyushu Electric Power Co., Inc.) is going to be completed in 1997. It has a toroidal coil system with 6 elementary coils (~ each 1/6 kWh) made by 3 manufactures independently, each of which has its own type of coil and conductor: Compacted Rutherford type for conductors, and pancake and layer-winding type for coils. The newly designed coil shape “modified D” has two straight parts in-between D parts.

Measurements were made for each of the 3 coil types in the 6 elementary coils. The results are: coils were stable up to the current corresponding to the rated 1000A of the toroidal arrangement. Losses were measured for the condition of repeated charging and discharging with high ramp rate were within the designed value. Strains have also been measured on the support structures of each coil, mechanical characteristics of each coil are compared.

Keywords

Support Structure Power System Stabilization Elementary Coil Coil Shape Leakage Field 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Reference

  1. 1.
    T. Imayoshi et al., “Development of a 1kWh-Class Module-type SMES-Design Study,” Vol.7, p844, ASC96, Pittsburgh, USA (1996)Google Scholar
  2. 2.
    H. Okada et al., “Study on Modular SMES,” IEE(J)Trans. B, 115, p52 (1995)Google Scholar
  3. 3.
    T. Ezaki et al., “Design of a Modified D Shaped Troidal Coil for 1kWh/1MW Experimental SMES,” p 1279, ISS’95, Hamamatsu, Japan (1995)Google Scholar
  4. 4.
    F. Sumiyoshi et al., “Coupling Losses in Rutherford Cable Designed for lkWh/lMW SMES,” p116, Cryogenic Engineering Japan (1996)Google Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • H. Hayashi
    • 1
  • T. Imayoshi
    • 1
  • H. Kanetaka
    • 1
  • Y. Yamamoto
    • 1
  • F. Irie
    • 1
  • T. Ezaki
    • 2
  • M. Takeo
    • 3
  • S. Ioka
    • 4
  • K. Asano
    • 5
  • S. Nose
    • 6
  1. 1.Kyushu Electric Power Co., Inc.Minami-ku, Fukuoka, 815Japan
  2. 2.Oita University700, Dan-noharuOitaJapan
  3. 3.Kyushu UniversityHigashi-ku, Fukuoka, 815Japan
  4. 4.Toshiba Corporationchiyoda-ku, Tokyo, 102Japan
  5. 5.Hitachi Ltd.Hitach-shi, Ibaraki, 317Japan
  6. 6.Fuji Electric Co., Ltd.Ichihara, chiba, 290Japan

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