基于磁阻传感器的三维瞬态磁场记录仪的研制

汪晓华; 黄琦; 卢有亮; 邹恒纳; 杜默

汪晓华,黄琦,卢有亮,邹恒纳,杜默.基于磁阻传感器的三维瞬态磁场记录仪的研制[J].电测与仪表,2015,52(2):.
Xiaohua Wang,Qi Huang,Youliang Lu,Hengna Zou,Mo Du.Development of A 3-D Transient Magnetic Field Recorder Based on AMR Sensor And its Application[J].Electrical Measurement & Instrumentation,2015,52(2):.

基于磁阻传感器的三维瞬态磁场记录仪的研制

Development of A 3-D Transient Magnetic Field Recorder Based on AMR Sensor And its Application

DOI：

中文关键词: 瞬态磁场变电站 AMR效应

英文关键词:transient magnetic, substation, AMR

基金项目:

作者中文名	作者英文名	单位
汪晓华	Xiaohua Wang	电子科技大学电力系统广域测量与控制四川省重点实验室
黄琦	Qi Huang	电子科技大学电力系统广域测量与控制四川省重点实验室
卢有亮	Youliang Lu	电子科技大学电力系统广域测量与控制四川省重点实验室
邹恒纳	Hengna Zou	电子科技大学电力系统广域测量与控制四川省重点实验室
杜默	Mo Du	电子科技大学电力系统广域测量与控制四川省重点实验室

摘要点击次数: 2074

中文摘要:

随着智能变电站的发展,变电站二次设备的瞬态电磁干扰问题越来越引起人们的关注。为了研究变电站开关操作时的瞬态磁场,本文基于各向异性磁阻(AMR)传感器研制了一套高速大容量三维瞬态磁场记录仪。该仪器测量频带为DC-5MHz,动态范围20mGs到6Gs,线性度大于97%,测量误差小于3%,存储深度大于50ms。测试和现场应用表明,该瞬态磁场记录仪在动态范围、线性度和抗电磁干扰性能等方面,基本满足变电站瞬态磁场测量要求,各项指标均达到设计要求。

英文摘要:

With the development of smart substations, much attention has been focused on the transient magnetic field (TMF) generated during switching operation in substations. In order to study the TMF, a portable integrated system based on Anisotropic Magneto-resistive (AMR) sensor has been developed. The system mainly consists of magnetic probe, sampling card, and industrial computer. This system can record TMF across a bandwidth from DC to 5MHz and a dynamic range from 20mGs to 6Gs for at least 50ms continuously. Laboratory tests show that the system linearity is greater than 97%, the measuring error is less than 3%. Field applications are presented at last, the results show that the proposed system is high sensitivity, wide dynamic and relatively wide bandwidth, and it is qualified to most applications in substations.

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