Parameter design and performance simulation of a 10 kV voltage compensation type active superconducting fault current limiter

• For a practical 10 kV system, the 10 kV active SFCL’s basic parameters are designed.
• Under different fault conditions, the 10 kV active SFCL’s performances are simulated.
• The designed 10 kV active SFCL’s engineering feasibility is discussed preliminarily.

Since the introduction of superconducting fault current limiter (SFCL) into electrical distribution system may be a good choice with economy and practicability, the parameter design and current-limiting characteristics of a 10 kV voltage compensation type active SFCL are studied in this paper. Firstly, the SFCL’s circuit structure and operation principle are presented. Then, taking a practical 10 kV distribution system as its application object, the SFCL’s basic parameters are designed to meet the system requirements. Further, using MATLAB, the detailed current-limiting performances of the 10 kV active SFCL are simulated under different fault conditions. The simulation results show that the active SFCL can deal well with the faults, and the parameter design’s suitability can be testified. At the end, in view of the engineering feasibility of the 10 kV active SFCL, some preliminary discussions are carried out.