±800kV特高压直流全光纤电流互感器研制及应用研究  

Development and Application Research of ±800 kV UHVDC Fiber Optical Current Transducer

作　　者：罗苏南[1] 曹冬明[1] 王耀[1] 丁晔[1] 阎嫦玲[1] 须雷[1] 石亲民[1] 

机构地区：[1]南京南瑞继保电气有限公司,南京211102

出　　处：《高压电器》2016年第10期1-7,共7页High Voltage Apparatus

基　　金：国家电网公司2016年科技项目~~

摘　　要：文中介绍了一种作者研制的新型±800 kV特高压直流全光纤电流互感器,并进行了为期1年的试运行。直流全光纤电流互感器采用Faraday磁光效应原理,采用光纤作为传感介质。文中介绍了±800 kV直流全光纤电流互感器的原理、构成、关键技术、测试试验及试运行情况,针对不同的直流保护方案提出了直流全光纤电流互感器的配置建议。测试试验及试运行表明:文中研制的直流全光纤电流互感器测量精度达到0.2级,阶跃响应小于125μs,主要技术指标(包括测量精度、响应时间、温度稳定性、抗振性能及绝缘性能等)能够满足特高压直流换流站的应用需求,直流全光纤电流互感器在特高压直流输电系统具有很好的应用前景。In this paper, a new type of ±800 kV ultra high voltage DC fiber current transducer is introduced, and the trial operation is carried out for 1 year. The UHVDC fiber current transducer adopts the principle of Faraday magneto optic effect and uses the optical fiber as sensing medium. This paper introduces the principle, composi- tion, key technology, test and trial operation of the transducer and the configuration suggestion of DC fiber current transducer is proposed for different DC protection scheme. Test and trial operation show that the measurement ac- curacy of the developed UHVDC optical fiber current transducer is 0.2, the step response time is less than 125μs, the main technical indicators such as measurement accuracy, response time, temperature stability, anti vibration performance and insulation performance, etc, can meet the application requirements of UHVDC converter station, the DC optical fiber current transducer has a good application prospect in UHVDC transmission system.

关 键 词：直流输电 特高压 全光纤电流互感器 Fadaray磁光效应 

分 类 号：TM452[电气工程—电器]