计算技术与自动化2017，Vol.36Issue(4)：54-59,6.
基于组网的智能变电站采样同步问题探讨
Sampling Synchronization Strategy in Intelligent Substation Based on Network Sampling
摘要
Abstract
In smart substations,in order to reduce investment and improve data sharing,network sampling is adopted,but the voltage and current information in the network needs to be synchronized in order to achieve functions like differential and distance protection.After the intelligent station process layer networking,various differential protection (such as not out of the substation differential protection,differential protection of the main transformer,outbound line differential protection),single-ended distance protection and power measurement,merging secondary devices such as PMU and fault recorder are newer and higher in sampling synchronization,so the pedormance of protection depends on time synchronization system in network sampling mode.This paper analyzes the current mechanism of synchronous sampling,Analyzed the problem that may be caused by the abnormality of the synchronization signal,and finally proposed several solutions.关键词
合并单元/同步/对时/延时可测Key words
merging unit/sampling synchronization/measured time delay分类
信息技术与安全科学引用本文复制引用
高红亮,陶文伟,刘东超,付艳兰,陈志刚..基于组网的智能变电站采样同步问题探讨[J].计算技术与自动化,2017,36(4):54-59,6.基金项目
中国南方电网公司重点科技项目(ZDKJQQ00000016) （ZDKJQQ00000016）
