广东电力2016，Vol.29Issue(4)：55-61,7.DOI:10.3969/j.issn.1007-290X.2016.04.010
变电站电容型设备在线监测系统设计与应用
Design and Application of Online Monitoring System for Substation Capacitive Equipments
摘要
Abstract
Weak leakage current of capacitive equipments and zinc oxide arrester is obtained by using active zero flux current transformer (CT),and high-precision synchronous sampling of 1 00 ns is realized by taking Inter Range Instrumentation Group-B(IRIG-B)as the synchronous sampling clock.On the above basis,field programmable gate array(FPGA)is used to produce multiple logic modules such as IRIG-B decoding,analog to digital converter(ADC)control,frequency measure-ment,lightning counting,temperature and humidity acquisition,and so on.Particularly by designing and realizing functions including multi-channel simulating signal sampling,storage and fast Fourier transformation (FFT)around FFT IP core,it is able to improve measurement accuracy as well as effectively reduce hardware costs of the device.Experimental and field op-eration data indicate that this device is able to satisfy requirements for online monitoring precision of the power system and has higher stability and scalability.关键词
在线监测/电容型设备/FFT IP核/现场可编程门阵列/IRIG-BKey words
online monitoring/capacitive equipment/FFT IP core/field programmable gate array(FPGA)/Inter Range In-strumentation Group-B(IRIG-B)分类
信息技术与安全科学引用本文复制引用
程丹,黄新波,朱永灿,李小博,郭剑峰,张浩..变电站电容型设备在线监测系统设计与应用[J].广东电力,2016,29(4):55-61,7.基金项目
国家自然科学基金(51177115) （51177115）
