Design and Test of 10 kV/400 A Flux-Coupling-Type Superconducting Fault Current Limiting Module

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Abstract
The flux-coupling type superconducting fault current limiter (FC-SFCL) is suggested to suppress the surge current in voltage sourced converter based HVDC (VSC-HVDC) power systems. One 10 kV/400 A FC-SFCL module with two branches is designed and tested. For the FC-SFCL module, the two branches could use the same or different YBCO tapes. Furthermore the electromagnetic analysis and parameter calculation of the module are performed. In order to study the current-limiting performance of the FC-SFCL under the rapid change of fault current, a dynamic simulation model is established. Finally, the transient properties of FC-SFCL module are simulated and tested. According to the measurement results, the maximum impact current could be limited from 12kA to 6264A, and the largest resistance of SFCL module is about 1.5 Ω when the dc impact voltage is 10kV, which is close to the simulation results.
Funding Information
  • National Key Basic Research Program of China (973 Program) (2015CB251005)
  • National Natural Science Foundation of China (51577179)

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