An Analysis of Superconducting Fault Current Limiter for Stabilization of Synchronous Generators under Unbalanced Faults. ( Part 2 )

Abstract

Power demand is still increasing day by day in Japan although the economic condition is not so good. As a result power systems are becoming larger and more complex to meet power demand, and hence, power system stability enhancement is becoming more and more important. On the other hand, researches and developments on superconducting fault current limiter (SFCL) are moving forward in accordance with the advancement of superconducting technology, which are expected to be applied to practical power system. This paper describes the results of analyses about stabilizations of synchronous generators by SFCL under balanced and unbalanced faults occurred at different points, and the effects of malfunctioning and the quench time of SFCL on the generator dynamics