全光纤电流互感器宽频校验系统  

Broadband calibration system of fiber-optical current transformer

作　　者：李登云 李鹤 聂琪 张丹丹[2] 庞磊 LI Deng-yun;LI He;NIE Qi;ZHANG Dan-dan;PANG Lei(Institute of Metrology,China Electric Power Research Institute Co.Ltd.,Wuhan 430074,China;State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University of Science&Technology,Wuhan 430074,China;State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]中国电力科学研究院有限公司计量研究所,武汉430074 [2]华中科技大学强电磁工程与新技术国家重点实验室,武汉430074 [3]西安交通大学电力设备电气绝缘国家重点实验室,西安710049

出　　处：《沈阳工业大学学报》2020年第2期132-137,共6页Journal of Shenyang University of Technology

基　　金：国家重点研发项目(2017YFF0205701);国家电网有限公司总部科技项目资助(JL71-17-005).

摘　　要：为了满足对高压直流输电系统中高次谐波宽频测量性能校验的要求,开发了一种全光纤电流互感器宽频校验系统.基于对校验系统升流器二次侧回路阻抗进行计算,提出了不同额定电流全光纤互感器校验系统的电源选择要求,并依据测试结果对电源设计进行了优化.对全光纤电流互感器样机进行了50~2 500 Hz的宽频校验.结果表明,所提校验系统在50~2 500 Hz范围内具有良好的校验能力,宽于目前国内全光纤电流互感器校验系统频率范围.In order to meet the calibration requirements of broadband measurement performance for high order harmonics in a high voltage direct current( HVDC) transmission system,a broadband calibration system for fiber-optical current transformer( FOCT) was developed. Based on the calculation of secondary side loop impedance of lift in the calibration system,the power supply selection requirements of calibration system for FOCT with different rated currents were proposed. According to test results,the power supply design was optimized. A FOCT prototype was investigated by broadband calibration within the range from 50 Hz to 2 500 Hz. The results show that the as-proposed system has good calibration ability within the range from 50 Hz to 2 500 Hz,which is wider than the frequency range of current calibration system for FOCT.

关 键 词：全光纤电流互感器 测量 高压直流输电系统 宽频 测量性能 校验系统 频率 二次回路 

分 类 号：TM452[电气工程—电器]