Analysis of magnetic saturation FCL based on systems of naval ships
Xudong Liang · Relay · 2004
With the accretion of naval ships power system capacity, the amplitude of short circuit current increases greatly, consequently the disjuncting capacity of the present switch can not fulfill the demand of short circuit protection. Therefore, the amplitude of short circuit current must be limited. The working principle of magnetic saturation FCL is discussed, and based on the theory of typical machine transient analysis, the formula of calculating suitable inductance is obtained. The simulation model using SimPowerSystems module of simulink is established and the simulation analysis is carried out during short circuit when the system equipped with or without FCL. Simulation results accord with the theoretical calculation ones, which proves the theoretical analysis is believable.