Characteristic test of HTS pancake coil modules for small-sized SMES

Author

Kim, Ji Hoon ; Kim, Woo-Seok ; Hahn, Song-Yop ; Lee, Jae Moon ; Rue, Myung Hwan ; Cho, Bo Hyung ; Im, Chang Hwan ; Jung, Hyun Kyo

Author_Institution

Seoul Nat. Univ., South Korea

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

1919

Lastpage

1922

Abstract

In this paper, 16 HTS pancake coil modules made with 32 double pancake coils were designed, analyzed, built, assembled, and tested to show feasibility of small sized HTS SMES (μ-SMES). Rated current is 200 A and operating temperature is 20 ∼ 30 K. Evolution strategy was used for coil optimization and FEM was used for magnetic field calculation. After building the modular toroid coils, a vacuum chamber was built to contain the coil. Three GM cryocoolers were used to reach the operating temperature. Bridge type converter was used to supply the current to the SMES coil modules. Operation showed a close agreement with the calculated result.

Keywords

cryogenics; finite element analysis; high-temperature superconductors; optimisation; superconducting coils; superconducting magnet energy storage; 20 to 30 K; 200 A; GM cryocoolers; HTS SMES; bridge type converter; coil optimization; conduction cooling; double pancake coils; evolution strategy; finite element method; high temperature superconductors; magnetic field calculation; modular toroid; pancake coil modules; superconducting magnetic energy storage; Assembly; Bridges; Buildings; Coils; Current supplies; High temperature superconductors; Magnetic analysis; Samarium; Testing; Toroidal magnetic fields; Conduction cooling; HTS SMES; modular toroid;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.849334

Filename

1440031