Optimal application research of superconducting fault current limiters on medium voltage direct current shipboard power system

Medium voltage direct current shipboard power system (MVDC SPS) is the development trend of navy in the future. At present, one of the bottlenecks restricting the development of MVDC SPS is that the short fault. This paper presents a method of applying a hybrid type superconducting fault current limiter (H-SFCL) to MVDC SPS protection. The topology and working principle of H-SFCL are introduced, and current limiting performance is evaluated. The small-scale prototype experiment is done to analyze the current limiting process of common SFCLs and H-SFCLs. The optimal allocation of H-SFCL in MVDC SPS is studied. A novel three-objectives optimal method is proposed to cope with the optimal allocation problems considering both inductive, resistive components and break time of the CBs. The three objective optimization configuration evaluation model for current limiters with both resistive and inductive current limiting components is proposed, which can also optimize the breaking time of external circuit breakers with good convergence.