Fault Tolerant Superconducting Busbar With Reduced Self-Field Effect on Critical Current Design for All Electric Aircraft

High Temperature Superconductors (HTS) are promising solution for high current applications such as in all-electric aircraft.According to Paschen's law of voltage breakdown, low voltage is recommended for electric aircraft and high current is required to provide sufficient thrust.A superconducting high current low voltage DC busbar for electric aircraft power distribution system design is proposed and tested in liquid nitrogen at range of 77 K temperature.The emphasis gives to create a design that allows modularity, ride through transients or fault events and reduced effect of self-field on critical current (IC).Design is developed through finite element modelling (FEM) using COMSOL software to study effect of gap between HTS tapes on critical current.A prototype is developed, and experimented with 1 kA at 77K, which measured V-I characteristics and tested against fault current.