介绍了一种新型的基于磁通补偿的故障电流限制器的工作原理。在电力系统正常运行时 ,变压器主磁通被补偿为 0 ,故障限流器呈现很小的变压器漏阻抗 ,压降很小 ,对电力系统运行无影响。当电网发生短路故障时 ,故障限流器呈现大的变压器励磁阻抗以限制短路电流 A new kind of working principle of fault current limiter based on flux compensation is introduced. During the normal operation of the power system, the main flux of the transformer is compensated to zero, and the fault current limiter presents a small transformer leakage impedance with a small voltage drop and has no effect on the operation of the power system. When a short circuit fault occurs in the grid, the fault current limiter presents a large transformer magnetizing impedance to limit the short circuit current