Saturated core type superconducting fault current limiter and control method of the fault current limiter

摘要

A core-saturated superconductive fault current limiter and a control method of the fault current limiter. The fault current limiter includes a superconductive magnet (2), a core (4), an AC winding (5), a cryostat system, a monitor system (7) and a DC control system (6). The output of the DC control system (6) is connected to the two terminals of the superconductive magnet (2). The DC control system (6) is also connected to the monitor system (7). The core (4) has an unequal section core structure. The control method includes: controlling the current which is flowing through the superconductive magnet (2) for limiting the fault current in the power net (1) in the case of a short circuit fault event.