【摘要】 本文对基于模块化多电平换流器的直流输电(modular multilevel converter based high voltage direct current,MMC-HVDC)系统故障隔离技术进行了较为全面的综述。简单介绍了MMC-HVDC系统的拓扑结构,以及系统中的典型直流故障。针对这些故障,介绍了当前几种应用广泛的故障隔离技术,主要包括交流断路器隔离、高压直流断路器隔离以及换流器故障自清除技术,归纳了国内外学者们的一些研究成果。最后根据当前国内外的研究情况,指出了当前直流故障隔离技术发展面临的主要问题。更多还原

【Abstract】 This paper comprehensively reviews on the DC fault isolation technique in MMC-HVDC system.The topology of the MMC-HVDC system and the typical DC faults in the system are briefly introduced.Combining with the research results at home and abroad,this paper introduces the applicability of different isolation methods in MMC-HVDC system.Finally,according to the current research situation at home and abroad,the main problems in the development of DC fault isdation technology are pointed out.更多还原