Electrical Compensation for Magnetization Distortion of Magnetic Fluxgate Current Sensor

doi:10.1109/TIM.2022.3152861

	Electrical Compensation for Magnetization Distortion of Magnetic Fluxgate Current Sensor
	Yutong Wei1,2,3 ; Cheng Li1 ; Wenlei Zhao1 ; Mingyu Xue 4; Bin Cao 4; Xu Chu 4; Chaofeng Ye 2
	2022
发表期刊	IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT (IF:5.6[JCR-2023],5.6[5-Year])
ISSN	1557-9662
卷号	71
发表状态	已发表
DOI	10.1109/TIM.2022.3152861
摘要	Current sensors based on the fluxgate magnetic field meter and feedback zero-field operating principle have excellent current measurement accuracy and linearity in a large range of up to thousands of amperes. An excitation current ( ${I}_{e}$ ) is employed in a magnetic fluxgate sensor to magnetize the magnetic core periodically, which will generate magnetization distortion that affects the performance of the sensor. This article proposes a novel scheme for suppressing the magnetization distortion through electrical compensation. The source of the magnetization distortion is theoretically derived and analyzed. It is found that the magnetization distortion is a function of the excitation current ${I}_{e}$ and is not affected by the primary current. Since ${I}_{e}$ is a periodical current that is determined by the parameters of the sensor itself, it is feasible to inject a specified periodical current to the output port of the sensor to cancel the magnetization distortion. Compared with the magnetization distortion compensation method with an additional core and coil, this method does not need to pair the cores or coils, which significantly reduces the complexity of the production process and saves space for the sensor. A prototype sensor with electrical compensation is designed, fabricated, and tested. Experimental results show that the compensation setting significantly suppresses the magnetization distortion signal. The amplitude of the basic frequency component is reduced from 24 to $6.8 ~\mu \text{V}$ . The other odd harmonics of the magnetization distortion are also reduced. The electrical compensation method works properly in a large current range from −1.5 to 1.5 kA. The scale accuracy of the prototype sensor is less than 5.7 ppm (parts per million). The compensation method can suppress the magnetization distortion to a similar level with operating temperature changes from room temperature to 50 °C.
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收录类别	SCI ; SCIE ; EI
来源库	IEEE
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/159571
专题	信息科学与技术学院信息科学与技术学院_硕士生信息科学与技术学院_博士生
作者单位	1.School of Information Science and Technology, ShanghaiTech University, Shanghai, China 2.Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China 3.University of Chinese Academy of Sciences, Beijing, China 4.Shanghai United-Imaging Healthcare Company, Ltd., Shanghai, China
第一作者单位	信息科学与技术学院
第一作者的第一单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Yutong Wei,Cheng Li,Wenlei Zhao,et al. Electrical Compensation for Magnetization Distortion of Magnetic Fluxgate Current Sensor[J]. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,2022,71.
APA	Yutong Wei.,Cheng Li.,Wenlei Zhao.,Mingyu Xue.,Bin Cao.,...&Chaofeng Ye.(2022).Electrical Compensation for Magnetization Distortion of Magnetic Fluxgate Current Sensor.IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,71.
MLA	Yutong Wei,et al."Electrical Compensation for Magnetization Distortion of Magnetic Fluxgate Current Sensor".IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 71(2022).