Power System Stabilizing Control by Coordination of Series Damping Resistor Operated by Superconducting Fault Current Limiter with Superconducting Magnetic Energy Storage

Abstract

System stability and protection from any disturbances are significant issues in a recent power system especially in a deregulated power system. In this paper a Superconducting Fault Current Limiter (SFCL) assembled with a series damping resistor is investigated as a powerful controller for the transient stability enhancement of power systems. The application of series damping resistor controlled by SFCL combined with a Superconducting Magnetic Energy Storage (SMES) for power system stabilization is proposed and the effectiveness is investigated in detail. The SFCL with a series damping resistor is capable of absorbing the accelerating power of generator effectively, by which the capacity of SMES is significantly reduced. As a result, the power system dynamic stability as well as the transient stability has been effectively enhanced by the SMES with SFCL.