Research of a New Coil Design for Superconducting Magnetic Energy Storage
Some superconducting devices like Superconducting Magnetic Energy Storage (SMES) need a small external stray field and sometimes a constant internal field (MRI). Both problems can be approached using special coil configurations. Basic forms like torus, solenoid, and alternate solenoids with parallel axis, are well known. The active shielding method is based on the cancelation of the lower order magnetic moments of a current loop. We propose two designs that handle both problems. One configuration is composed by two spherical concentric distributions of current where a special diameters ratio is determinated in order to realise good conditions for the superconducting windings. The other one is a polygonal structure. The technological approach of these two theoretical designs is considered. The study will focus on energy, flux density and geometrical data.
KeywordsFlux Density Stray Field Polygonal Structure Superconducting Magnetic Energy Storage Magnetic Stray Field
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- 5.Mostafa K. Abdelsalam, «MicroSMES Magnet Configuration for reduced Stray field applications», IEEE Trans. ASC, Vol.5, N°2, 1995.Google Scholar
- 8.J.H. Schultz, DB. Montgomery, H.J. Thome, E.S. Bobrov, and R.J. Fleming,«Poloidal field coil and cryogenic systems for the FCX Tokamak», Journal IEEE Trans. MAG Vol 21 pl064–1066, 1985.Google Scholar
- 10.F. Vivaldi, L. Ottonelo, «Study on possible constructive solution of SMES for different applications in the italian background.», Proceeding of the IEA Symposium on the use of superconductivity in energy storage, Editor World scientific-Juengst, Komarek, Maurer, 1994.Google Scholar
- 13.E. Durand, Electrostatique II, Problèmes généraux conducteurs, Edition MassonGoogle Scholar