Design study of the cooling scheme for SMES system in ASPCS by using liquid hydrogen

• Advanced Superconducting Power Conditioning System is composed of SMES, FC–EL, H2 storage.
• The ASPCS is proposed to be built beside a LH2 storage of a vehicle station to effectively use the cooling capability of liquid hydrogen.
• The SMES coil, which is made from an MgB2 conductor, is indirectly cooled by LH2 through its own conduction.

From the point of view of environment and energy problems, the renewable energies have been attracting attention. However, fluctuating power generation by the renewable energies affects the stability of the power network. Thus, we propose a new electric power storage and stabilization system, Advanced Superconducting Power Conditioning System (ASPCS), in which a Superconducting Magnetic Energy Storage (SMES) and a hydrogen-energy-storage converge on a liquid hydrogen station for fuel cell vehicles. The ASPCS proposes that the SMES coils wound with MgB2 conductor are indirectly cooled by thermo-siphon circulation of liquid hydrogen to use its cooling capability. The conceptual design of cooling scheme of the ASPCS is presented.