空心线圈用于RSD开关电流测量  

Measurement of RSD Switch Current Using Air-Core Coil

作　　者：徐雁[1] 胡浩亮[1] 韩小涛[1] 梁琳[2] 余岳辉[2] 

机构地区：[1]华中科技大学电气与电子学院,武汉430074 [2]华中科技大学电子科学与技术系,武汉430074

出　　处：《电工技术学报》2008年第9期10-15,共6页Transactions of China Electrotechnical Society

摘　　要：首先分析了高压大功率RSD开关电流的特点,确认了空心线圈测量方法。在比较空心线圈传感器自积分和外积分主要性能的基础上,对测量中相位误差的影响作了进一步研究分析。针对上升时间为微秒量级且含有低频分量的RSD开关电流,提出了调控相差的外积分测量方案。实际测量证明:调控相差的外积分测量法能较好地满足RSD开关电流测量的要求。This paper analyzes the characteristics of RSD switching current, and selects measurement method by means of air-core coil. After comparison between self-integrator and out-integrator, a further study about the impact of phase error is made. Basis on the out-integrating measurement, a phase error control method is proposed to measure the RSD switching current which has low frequency components and nanosecond rising time. Actual measurements prove that this method can meet the RSD switching current measurement requirements.

关 键 词：RSD开关 电流测量 相位误差 空心线圈 

分 类 号：TM931[电气工程—电力电子与电力传动]