| Title |
On the Current Limiting Characteristics and Parameters of Superconducting Fault Current Limiter Introduced to 345kV Electric Power System due to Resistive - Type , Reactive - Type and Their Performance Comparison |
| Authors |
Won-Pyo Hong ; Hak-Yong Kim |
| Abstract |
The maximum short circuit current of modern power system is becoming so large that circuit breaker is not expected to be able to shut down the current in the future. In order to cut over-currents, a system composed of a superconducting fault current limiter(SFCL) and traditional breaker seems to provide a promising solution for future power operation. In present paper, three line-to-ground fault is assumed to happen at the center of 345kV transmission lines in a large capacity electric power system. The superconducting fault current limiter was represented using a commutation type, which consists of a non-inductive superconducting coil and current limiting element(resistor or reactor). The introduction merits of the SFCL were investigated quantitatively by RTDS/EMTDC from the viewpoint of current limiting performance, the prevention of the voltage drop at the load bus and comparison characteristics for two type SFCL. Desired design specification and operation parameters of SFCL were also given qualitatively by the performance evaluation of the two type SFCL in the power system. |