| 摘要 |
<p>The present invention relates to a hybrid superconducting fault current limiting system considering an auto-reclosing operation and, more specifically, to a hybrid superconducting fault current limiting system considering an auto-reclosing operation which can reduce a fault current and improve the transient stability of a power system applied with an auto-reclosing operation by considering the basic characteristics and operation sequence of a superconducting fault current limiter, an interaction with power system fault removal time, and the auto-reclosing operation of the power system. The hybrid superconducting fault current limiting system comprises: a first superconductor; a first blocking unit connected to the front side of the first superconductor in series and always in a close state; a second superconductor connected to the first superconductor in parallel; a second blocking unit connected to the front side of the second superconductor in series and always in an open state; a phase conductor connected to the second superconductor in parallel; and a third blocking unit connected to the phase conductor in parallel and always in the open state. When a fault current is introduced into the first blocking unit, the first blocking unit becomes the open state according to the operation of the first superconductor, and the second blocking unit becomes the close state at a predetermined first timing. When the fault current is introduced into the second blocking unit in the close state again, the second blocking unit becomes the open state according to the operation of the second superconductor, and the third blocking unit becomes the close state at a predetermined second timing.</p> |
