Studies on Effect of Superconducting Fault Current Limiters on Improvement of Power System Stability

Abstract

In design of power systems, we have two big problems, that is, fault current and power system stability, which are reciprocal each other. For each of two problems, we have some countermeasures. As one of the countermeasures, superconducting fault current limiters (ScFCL's) are being developed. By use of FCL's, not only the problems of fault current but also those on power systemstability are expected to be solved.
This paper describes a simple calculation method for stability of power sytems with ScFCL's which may be useful for system designs. Exact considerations led us that ScFCLs are effective not only for suppressing fault current but also for increasing power system stability.