用于特高压电晕笼分裂导线的集成化光电式电晕损失测量系统设计  

Corona Losses Monitoring System of Bundle Conductors Using UHV Corona Cage Based on Optical Fiber Transmission

作　　者：刘云鹏[1,2] 黄世龙[1] 陈少帅 周广洋 赵涛[1] 张重远[1] 

机构地区：[1]华北电力大学河北省输变电设备安全防御重点实验室,河北保定071003 [2]华北电力大学新能源电力系统国家重点实验室,北京102206

出　　处：《高压电器》2017年第10期1-6,共6页High Voltage Apparatus

基　　金：国家电网公司科技项目(SGTYHT/14-JS-188)~~

摘　　要：为了研究高海拔地区特高压分裂导线的起晕特性和电晕损失特性,研制了一套集成化光电式电晕损失测量系统。测量系统由远端光通信采集模块,本地合并单元和上位机软件组成。远端光通信采集模块与本地合并单元之间采用光纤传输,通过光脉冲触发保证导线电晕电流和电压的精确同步采集。采用Labview开发了上位机软件,本地合并单元与上位机之间以UDP通信协议通讯。在实验室用信号发生器对测量系统进行角差、比差测定,测量结果表明:该套系统角差<0.009′,比差<0.03%,同步性和测量精度均优于现有的光纤数字化测量系统。应用该系统在西宁市平安县对特高压电晕笼分裂导线电晕损失进行测量,获得了八分裂LGJ630导线在干燥、中雨和大雨条件下的电晕损失,表明该系统可用于研究高海拔不同条件下特高压交流分裂导线电晕损失规律。In order to improve the integrity of the existing optical fiber digital measurement system, the corona losses monitoring system of bundle conductors using UHV corona cage based on optical fiber transmission is developed The system consists of remote optical-fiber-transmission acquisition module, local merging module. The optical fiber is used to transmit data between remote module and local module, accurate and synchronous collection of voltage and current signals is realized by optical-pulse, triggering. The PC software is designed by LabVIEW, and the communication be- tween local module and PC adopts the UDP communication protocoL The error testing results of the system by use of sig nal generator in laboratory show that angle error is within 0.009＇and the ratio error is less than 0.03%. The system has been applied in measuring of corona losses of bundled conductors in the Ping＇an county, and the corona losses under dry, moderate and heavy rainy conditions（with the rainfall ratio of 6mm/h and 12mm/h）and wet conductors are 67gained. It＇s concluded that this system can be set up further study on UHV AC bundle conductors＇corona losses law under different weather conditions in high altitude area.

关 键 词：特高压电晕笼 光通信采集模块 光纤传输 UDP通信 电晕损失 

分 类 号：TM75[电气工程—电力系统及自动化]