本文提出了一种用于电力系统短路试验的合闸角控制系统，介绍了它的结构和原理，并给出了系统中合闸角控制器和反并联可控硅开关控制器的实现框图与工作原理。通过该系统，可以精确控制短路试验中线路电流合闸角的大小。关键词: 电力系统短路试验 合闸角控制器反并联可控硅开关控制器Abstract: A control system of the initial fault current angle in power system short-circuit testis proposed in this paper. The structure and principle of the system are introduced. The initialfault current angle controller and the back-to-back connected thyristors controller of thesystem are presented in detail. The initial fault current angle can be precisely controlled withthis control system.Keywords: power system short-circuit test, initial fault current angle controller, backto-back connected thyristors controller