牛从直流电压测量系统板卡异常时控制保护动作特性分析  

Anaylsis of DC Control and Protection Operation Characteristics Caused by Abnormal DC Voltage Measurement Board in Niucong Station

作　　者：杨阳[1] 蔡斌[1] YANG Yang;CAI Bin(Guangzhou Bureau,China Southern Power Grid EHV Power Transmission Company,Guangzhou 510405,China)

机构地区：[1]中国南方电网超高压输电公司广州局,广东广州510405

出　　处：《电工技术》2020年第24期123-125,共3页Electric Engineering

摘　　要：针对牛从直流从西换流站直流电压测量回路板卡异常的情况,结合现场回路梳理及RTDS仿真,分析出当回路中不同测量板卡异常导致直流电压测量偏高时,直流极保护、极控系统不同的响应策略及动作后果,以便于现场运维人员快速制定相关的处置措施,对相关直流系统的现场运维工作具有借鉴和指导意义。In view of the abnormal situation of the DC voltage measurement circuit board of the Niucong DC Congxi converter station,combined with circuit check and RTDS(real-time-digital-simulation),the different response strategies and action consequences of DC pole protection and pole control system were analyzed when the DC voltage measurement was too high due to the abnormality of different measuring boards in the circuit in order to facilitate the on-site operation and maintenance personnel to quickly develop relevant disposal measures,which had reference and guiding significance for the on-site operation and maintenance work of relevant DC system.

关 键 词：高压直流 测量板卡异常 电压偏高 控制保护响应 

分 类 号：TM721[电气工程—电力系统及自动化]