合并单元高采样率数据在继电保护中的应用  

Application of High Sampling Rate Data in Merging Unit to Relay Protection

作　　者：刘凯波[1] 吕航[2] 李仲青[1] 

机构地区：[1]中国电力科学研究院,北京100192 [2]南京南瑞继保电气有限公司,南京211102

出　　处：《电力系统及其自动化学报》2016年第11期123-129,共7页Proceedings of the CSU-EPSA

摘　　要：提出一种用于继电保护的合并单元的高采样率数据的方案。基于采样测量值SMV(sampled measured val-ue)的基本概念数据同步的方法,对低通滤波器LPF(low pass filter)算法、插补原理进行了研究,并提出了保护方案。研究结果表明,低通滤波和插值同步方案是一种简单高效的高速率采样方法,改变采样数据接口,使算法和逻辑的保护可以有效地降低操作风险。研究成果在实时数字仿真系统RTDS(real time digital simulation)中进行了验证。This paper proposed a scheme of high sampling rate data in merging unit for relay protection. The data syn- chronization method based on the basic concepts of sampled measured value （SMV）, the low pass filter （LPF） algo- rithm and interpolation principle are studied, and then the protection scheme is proposed. The result shows that low pass filtering and interpolation synchronization scheme is simple and efficient for high rate sampling. That changing of sampling data interface can help arithmetic and logical protection effectively reduce the risk of operation. The proposed scheme is also verified in real time digital simulation （RTDS） system.

关 键 词：高采样率 继电保护 合并单元 低通滤波 仿真 

分 类 号：TM77[电气工程—电力系统及自动化]