| 直流叠加脉冲电流波形宽频带电流传感器 |
| |
| 引用本文： | 杨晓光,金双双,朱波,高丽敬,徐林亮. 直流叠加脉冲电流波形宽频带电流传感器[J]. 仪器仪表学报, 2017, 38(12): 3036-3043 |
| |
| 作者姓名： | 杨晓光 金双双 朱波 高丽敬 徐林亮 |
| |
| 作者单位： | 1. 河北工业大学 省部共建电工装备可靠性与智能化国家重点实验室天津300130；2. 河北工业大学 电磁场与电器可靠性省部共建重点实验室天津300130,1. 河北工业大学 省部共建电工装备可靠性与智能化国家重点实验室天津300130；2. 河北工业大学 电磁场与电器可靠性省部共建重点实验室天津300130,1. 河北工业大学 省部共建电工装备可靠性与智能化国家重点实验室天津300130；2. 河北工业大学 电磁场与电器可靠性省部共建重点实验室天津300130,1. 河北工业大学 省部共建电工装备可靠性与智能化国家重点实验室天津300130；2. 河北工业大学 电磁场与电器可靠性省部共建重点实验室天津300130,1. 河北工业大学 省部共建电工装备可靠性与智能化国家重点实验室天津300130；2. 河北工业大学 电磁场与电器可靠性省部共建重点实验室天津300130 |
| |
| 摘 要： | 提出了一种用于测量直流叠加脉冲电流波形的电流传感器。该传感器由两个磁芯组成,一个工作于磁通门状态,另一个基于罗氏线圈原理。为了将磁通门与罗氏线圈检测技术集成在一起,引入了一个反馈绕组,有效克服了脉冲磁场与直流磁场对磁芯工作状态的影响。基于理论分析制作了样机。实验结果表明,所提出的电流传感器能有效测量直流叠加脉冲电流波形:有效测量频带为340 k Hz,直流分量的测量误差为0.6%;低频段与高频段交点处的测量误差最大,最大测量误差为1.5%。
|
| 关 键 词： | 电流传感器 磁通门传感器 罗氏线圈 脉冲电流 |
Current sensor for DC superimposed with impulse current waveform |
| |
| Yang Xiaoguang,Jin Shuangshuang,Zhu Bo,Gao Lijing and Xu Linliang. Current sensor for DC superimposed with impulse current waveform[J]. Chinese Journal of Scientific Instrument, 2017, 38(12): 3036-3043 |
| |
| Authors: | Yang Xiaoguang Jin Shuangshuang Zhu Bo Gao Lijing Xu Linliang |
| |
| Affiliation: | 1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China; 2. Province Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin 300130, China,1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China; 2. Province Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin 300130, China,1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China; 2. Province Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin 300130, China,1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China; 2. Province Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin 300130, China and 1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China; 2. Province Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin 300130, China |
| |
| Abstract: | This paper presents a current sensor for DC superimposed with impulse current waveform. The current sensor consists of two magnetic cores: one core works in fluxgate principle, and the other is based on Rogowski coil principle. A feedback winding is introduced into the sensor in order to integrate fluxgate principle with Rogowski coil technique. Introducing the feedback winding effectively overcomes the influence of the impulse magnetic field and DC magnetic field on the magnetic core working state. A prototype is developed based on the theoretical analysis. Test results show that the proposed current sensor can effectively measure DC superimposed with impulse current waveform with a wide bandwidth up to 340 kHz. The measurement error for DC is limited to 0.6%, and the maximum error is 1.5%, which is at cut off point between the low frequency band and high frequency band. |
| |
| Keywords: | current sensor fluxgate current sensor Rogowski coil impulse current |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《仪器仪表学报》浏览原始摘要信息 |
|
点击此处可从《仪器仪表学报》下载免费的PDF全文 |
|
