Research Progress and Prospect of Fast DC Current Interruption Technology
Due to the DC current has no natural zero crossing point and high short-circuit current rise rate,DC current rapid interruption and system fault removal has become a major bottleneck restricting the development of DC power sys-tem.This paper firstly introduces the technical requirements and difficulties of DC fast interruption.Secondly,we analyze in detail the key technologies involved in DC fast interruption process,including current commutation technology,sol-id-state DC interruption technology,dielectric recovery technology,and high-speed mechanical switch technology,etc.Moreover,we review the current development status of various technologies and their applications,and compare the char-acteristics and adaptability of different technical solutions.Finally,the future development direction of DC fast interruption technology is discussed and summarized,which provides new technical ideas for the research and develop-ment and popularization and application of miniaturized,high-performance,low-cost,and highly-reliable fast DC circuit breakers.
DC power systemDC fast interruption technologycurrent commutationdielectric recoveryhigh-speed mechanical switch
万方数据
维普
