【摘要】 云广±800kV直流输电工程由于采用了每极2组12脉动换流器串联的接线形式而存在多种运行方式的可能性。介绍了云南—广东±800kV直流输电系统目前采用的一种双12脉动阀组投退策略具体方案,重点分析了投退策略的优缺点。利用RTDS实时数字仿真平台与实际控制保护系统相结合的方法,对第2个阀组投退情况进行了仿真分析。更多还原

【Abstract】 It is possible for the ±800 kV DC project to operate in manifold modes as it adopts a series Dual 12-Pulse valve groups connection structure.In this paper,one implementation scheme of the sequence control for the series Dual 12-Pulse valve groups is introduced,which has been used in Yunnan-Guangdong ±800 kV DC project,with a focus on analysis of its advantage and disadvantage.The RTDS simulation platform and the real DC control and protection system are combined to analyze the dynamic process of the second valve group’s Deblock/Block.更多还原