Title :
Normal Transition Simulation on Toroidal HTS-SMES Considering Electromagnetic and Thermal Characteristics
Author :
Oga, Yuki ; Noguchi, So ; Igarashi, H.
Author_Institution :
Grad. Sch. of Inf. Sci. & Technol., Hokkaido Univ., Sapporo, Japan
Abstract :
We previously investigated the stability of toroidal HTS-SMES magnets by simulation. The simulation took an electric circuit and a magnetic field phenomenon into account. However, a thermal condition is an important factor in investigating the behavior of an HTS-SMES magnet. Therefore, we have improved the previously developed simulation code to consider the thermal phenomenon. With the newly developed numerical simulation, we have investigated a time transition of a coil current, a critical current, and a temperature in the toroidal HTS-SMES magnets. As a result, it was confirmed that the temperature of all the HTS coils rose up quickly one after another, after the temperature at a certain local area of one HTS coil was increased.
Keywords :
critical current density (superconductivity); high-temperature superconductors; numerical analysis; superconducting coils; superconducting magnet energy storage; superconducting magnets; coil current; critical current; electric circuit; electromagnetic properties; magnetic field; normal transition simulation; numerical simulation; thermal properties; toroidal HTS-SMES magnets; Critical current; Integrated circuit modeling; Magnetic fields; Superconducting coils; Yttrium barium copper oxide; HTS-SMES; YBCO tape; normal-zone propagation simulation; quench protection study; stability; superconducting magnet; toroidal magnet;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2012.2231717
