10/1000μs雷电流测量Rogowski线圈的研制  

Development of Rogowski Coil for 10/1 000 μs Lightning Current Measurement

作　　者：孙伟[1] 王影影 姚学玲[2] 何群 郝斯杰 SUN Wei;WANG Yingying;YAO Xueling;HE Qun;HAO Sijie(School of mechanical and electrical engineering,Xi'an University of Architecture And Technology,Xi'an 710055,China;State Key Laboratory of Electrical Insulation and Power Equipment,Xi'an Jiaotong University,Xi'an 710049,China)

机构地区：[1]西安建筑科技大学机电学院,西安710055 [2]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：《电瓷避雷器》2020年第5期1-6,14,共7页Insulators and Surge Arresters

基　　金：国家自然科学基金资助项目(编号:51577151,51477132)。

摘　　要：为了兼顾10/1 000μs雷电流波形快速上升的波前部分的高频分量与缓慢变化的波尾低频分量的测量需求,在对10/1 000μs雷电流波进行频谱分析的基础上,设计了带磁芯式的自积分Rogowski线圈,满足10/1 000μs雷电流波频谱的要求。采用10/1 000μs冲击电流Crowbar回路对设计的自积分Rogowski线圈进行了实验验证,与标准同轴管式分流器进行了测量结果比对,结果表明:研制的Rogowski线圈对幅值不大于3. 4 k A的10/1 000μs雷电流波,与标准同轴管式分流器测量准确度相比,峰值、波前时间、半峰值时间的测量偏差均不大于1%,满足测量要求,可应用于10/1 000μs雷电流的测量以及其它类似场合。In order to measure the high frequency component of the wavefront part of 10/1 000 μs lightning current waveform rising rapidly and the low frequency component of the wavefront tail changing slowly,on the basis of spectrum analysis of 10/1 000 μs lightning current wave,a self-integrating Rogowski coil with magnetic core is designed to meet the requirement of 10/1 000 μs lightning current wave spectrum. The self-integrating Rogowski coil is tested by using 10/1 000 μs impulse current Crowbar circuit,and the results are compared with those of the standard coaxial tube shunt. The results show that this Rogowski coil has a lightning current of 10/1 000 μs whose amplitude is no more than 3. 4 kA. Compared with the measurement accuracy of standard coaxial tube shunt,the measurement deviation of peak value,wavefront time and half peak time is not more than 1%,which meets the measurement requirements and can be applied to the measurement of lightning current of 10/1 000 μs microseconds and other similar occasions.

关 键 词：10/1000μs雷电流 频谱分析 自积分Rogowski线圈 

分 类 号：TM835.2[电气工程—高电压与绝缘技术]