中国电机工程学报2011，Vol.31Issue(22)：142-148,7.
基于电磁型电压互感器传输特性的过电压在线监测方法
Online Over-voltage Monitoring Method Based on Transmission Parameters of Voltage Transformer
摘要
Abstract
The online monitoring and analysis of the over-voltage is of great significance for the protection, control and numerical simulation research of the over-voltage in power system. A new method for over-voltage on-line monitoring based on the wideband transmission characteristic of potential transformer was proposed. This method applied the voltage transformers （VT）, secondary cables of the substation to obtain and transfer the over-voltage signals. The two ports network transmission parameter model of the whole system was build based on the black-box technique, and the numerical inverse calculation formula was deduced by means of vector fitting combining recursive convolution. AdoVTion of this model could derive the over-voltage waveform of the high-voltage port of the VT from the voltage signal of the secondary device by means of numerical simulation. The online monitoring system was put up in the laboratory. The comparison between the calculated results and measured data verified the feasibility of this monitoring method and the validity of the numerical inverse calculation method.关键词
电压互感器/过电压在线监测/矢量匹配法/递归卷积/传输参数/黑盒模型Key words
voltage transformer （VT）/over-voltage on-line monitoring/vector fitting/recursive convolution/transmission parameters/black-box model分类
信息技术与安全科学引用本文复制引用
张重远,唐帅,梁贵书,孙海峰,王涛,黄涛,任寅寅..基于电磁型电压互感器传输特性的过电压在线监测方法[J].中国电机工程学报,2011,31(22):142-148,7.基金项目
国家自然科学基金项目（50977031) （）
河北省自然科学基金项目（E2008001243) （）
中央高校基本科研业务费专项资金资助项目. （）
