Investigation on a modified hybrid compact saturated-core fault current limiter based on permanent magnets

摘要

To reduce the size and requirement of DC biasing capacity of saturated-core fault current limiter, a novel hybrid compact saturated-core fault current limiter (HCFCL) is proposed by this paper. The three-limb structure with Permanent magnets can reduce the size and DC biasing capacity. Firstly, the principle of HCFCL is introduced. To validate the performance, various FEA simulations with the 3D nonlinear field-circuit coupling transient analysis are carried out in Ansoft. And a 220V/10A prototype of HCFCL is designed and tested. The simulation and experimental results verify the effectiveness and excellent performance of proposed structure.