直流测量总线切换对特高压直流保护系统的影响  

The Effect of DC Measurement System Bus Switching on UHVDC Protection System

作　　者：徐攀腾[1] 张志朝[2] 

机构地区：[1]中国南方电网超高压输电公司广州局,广州510405 [2]中国南方电网超高压输电公司,广州510620

出　　处：《南方电网技术》2012年第6期11-14,共4页Southern Power System Technology

摘　　要：南方电网特高压直流工程直流测量系统采用集中处理方式,现场采集的数据量由测量系统预处理后,再经测量总线(TDM总线)传输至控制保护系统,因此,要求测量系统与各控制保护系统之间测量数据传输有更高的可靠性。介绍了高压直流控制保护系统的配置,对其测量总线的切换逻辑进行了分析。结合实例分析了测量总线的切换对特高压直流保护系统所产生的不良影响,并对所暴露出的问题提出了改进建议。A centralized processing method of DC measuring system is used for the UHVDC projects of CSG in the way that the on-site data are transmitted to the control and protection system by the measurement bus （ TDM bus ） after they are pretreated by the measureing system, and thus higher transmission reliability between the measuring system and the control and protection system is needed. This paper describes the configuration of UHVDC project measuring system, and analyses its measurement bus switching logic. The adverse effect of the switching on the protection system is analyzed, and its corrective proposal is put forward.

关 键 词：直流测量系统 测量总线 特高压直流系统 直流控制保护系统 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM733