电测与仪表2016，Vol.53Issue(17)：74-79,6.
一种基于 SV 采样信号的局部放电监测内同步基准修正方法
A synchronous reference correction method based on SV Sampling in partial discharge monitoring
摘要
Abstract
The partial discharge signals of high voltage equipment are highly correlated with the power frequency volt -age of operating equipment , and the PD monitoring devices or instruments can work properly based on the stable and reliable power frequency phase signals .According to the problem that PD reference phase cannot be introduced into the applications using electronic transformer , this paper presents a discharge monitoring internal synchronization refer-ence correction method based on the SV sampling .Firstly, the internal timer of device is used to generate a virtual frequency cycle , which is the internal synchronization signal , and then , the signals are used to pre-calibrate the input signals of internal synchronization;secondly , the virtual frequency phase is used to amend the SV signals provided by the combined units , after this, we can get accurate and reliable frequency phase reference .Whether conventional or electronic transformers , this scheme is very simple to implement and has the flexibility and popularity in engineering applications .关键词
局部放电监测/SV采样/工频相位/内同步/高压设备Key words
PD monitoring/SV sampling/frequency phase/internal synchronization/high-voltage equipment分类
信息技术与安全科学引用本文复制引用
路光辉,雍明超,王新刚,陈磊,周钟,梁武民..一种基于 SV 采样信号的局部放电监测内同步基准修正方法[J].电测与仪表,2016,53(17):74-79,6.基金项目
国家电网公司科技项目 （）
