| 摘要 |
PROBLEM TO BE SOLVED: To provide a superconducting current limiting device and a power system capable of effectively inhibiting a voltage sag by generating sufficient resistance even in the event of a small voltage sag in the power system. SOLUTION: This superconducting current limiting device includes: a superconducting current limiter 4 provided with a superconducting element and connected to an interconnecting line for interconnecting two power systems 1, 2; a detector 5 for detecting a voltage drop in the interconnecting line; a control device 6 for receiving a detection signal from the detector 5, and outputting an operation signal when the voltage drop in the tie line is greater than a set value; a resistance generation increasing circuit 8 for increasing the resistance value of the superconducting current limiter 4; and a switch 7 for receiving the operation signal, and operating the resistance generation increasing circuit 8. COPYRIGHT: (C)2007,JPO&INPIT |
