Applying saturated-core fault current limiter（SCFCL） is one of the most useful measures for limiting fault currents in power systems. In order to reduce the high excitation energy consumption

this paper introduces a new structure of a permanent-magnet-biased saturated-core fault current limiter（PSFCL）. The PSFCL is analyzed by using an equivalent magnetic circuit and electric circuit. The parameter design of PSFCL is also introduced in the paper. The FEA model of PSFCL is established and performed in Maxwell-3D. The simulation result verifies that the proposed PSFCL can limit fault current effectively. The experimental result obtained from a prototype validates the effectiveness of the proposed structure and the method.