This paper introduces the advantages of HVDC transmission and some parameters used in evaluating the stability of HVDC system.It focuses on the relationship between stability and the SCR, ESCR, VSF.

• 本文介绍了直流输电的相对优势,以及常用的评价直流系统稳定性的参数,同时重点介绍了短路比(SCR)、有效短路比(ESCR)和电压稳定性因子(VSF),并说明了它们和电压稳定性的关系。