A system study on superconducting fault current limitingtransformer (SFCLT) with the functions of fault current suppression andsystem stability improvement

摘要

In this paper, the authors propose a “superconducting fault current limiting transformer (SFCLT)”, a superconducting transformer equipped with the function of a superconducting fault current limiter. They discussed the operating characteristics of SFCLT introduced into a simplified power transmission model system. Fault current, transient stability, overvoltage and thermal characteristics of SFCLT were analyzed in the model system. It was finally revealed that SFCLT could satisfactorily bring about the functions of fault current suppression and power system stability improvement