MTJ based magnetic sensor for current measurement in grid

In this paper, the status and the challenges of utilizing MTJ based magnetic sensor for Grid sensing are reviewed. And it is shown with both modeling and experiment that an optimized MTJ based magnetic sensor can be utilized to monitor Grid current, particularly for each individual transmission line...

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Main Authors: Kai-Zhong Gao, Xiaolu Yin, Yi Yang, Dan Ewing, Paul J. De Rego, Sy-Hwang Liou
Format: Article
Language:English
Published: AIP Publishing LLC 2020-01-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5129902
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author Kai-Zhong Gao
Xiaolu Yin
Yi Yang
Dan Ewing
Paul J. De Rego
Sy-Hwang Liou
author_facet Kai-Zhong Gao
Xiaolu Yin
Yi Yang
Dan Ewing
Paul J. De Rego
Sy-Hwang Liou
author_sort Kai-Zhong Gao
collection DOAJ
description In this paper, the status and the challenges of utilizing MTJ based magnetic sensor for Grid sensing are reviewed. And it is shown with both modeling and experiment that an optimized MTJ based magnetic sensor can be utilized to monitor Grid current, particularly for each individual transmission line. Unlike the traditional approach, where the sensing element needs to be either integrated with, in contact with or near the transmission line, this measurement technique can be based on a contactless or a “remote” sensing setup, where the sensor is placed away from the Grid line. From the perspective of sensor, the sensitivity, the signal-to-noise ratio and the linearity of MTJ based magnetic sensor can all meet the requirement of application. It is demonstrated that an optimized DC measurement, in addition to AC measurement, can also be utilized for applications in the Grid system, such as solar energy generation.
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spelling doaj.art-0c452352b9994a75b3412e6584279aa62022-12-21T22:28:52ZengAIP Publishing LLCAIP Advances2158-32262020-01-01101015301015301-410.1063/1.5129902MTJ based magnetic sensor for current measurement in gridKai-Zhong Gao0Xiaolu Yin1Yi Yang2Dan Ewing3Paul J. De Rego4Sy-Hwang Liou5International Business and Technology Service Corporation, North Oaks, Minnesota 55127, USAWestern Digital Corporation, Fremont, California 94539, USADepartment of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USADepartment of Energy’s National Security Campus, Kansas City, Missouri 64147, USADepartment of Energy’s National Security Campus, Albuquerque, New Mexico 87106, USADepartment of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USAIn this paper, the status and the challenges of utilizing MTJ based magnetic sensor for Grid sensing are reviewed. And it is shown with both modeling and experiment that an optimized MTJ based magnetic sensor can be utilized to monitor Grid current, particularly for each individual transmission line. Unlike the traditional approach, where the sensing element needs to be either integrated with, in contact with or near the transmission line, this measurement technique can be based on a contactless or a “remote” sensing setup, where the sensor is placed away from the Grid line. From the perspective of sensor, the sensitivity, the signal-to-noise ratio and the linearity of MTJ based magnetic sensor can all meet the requirement of application. It is demonstrated that an optimized DC measurement, in addition to AC measurement, can also be utilized for applications in the Grid system, such as solar energy generation.http://dx.doi.org/10.1063/1.5129902
spellingShingle Kai-Zhong Gao
Xiaolu Yin
Yi Yang
Dan Ewing
Paul J. De Rego
Sy-Hwang Liou
MTJ based magnetic sensor for current measurement in grid
AIP Advances
title MTJ based magnetic sensor for current measurement in grid
title_full MTJ based magnetic sensor for current measurement in grid
title_fullStr MTJ based magnetic sensor for current measurement in grid
title_full_unstemmed MTJ based magnetic sensor for current measurement in grid
title_short MTJ based magnetic sensor for current measurement in grid
title_sort mtj based magnetic sensor for current measurement in grid
url http://dx.doi.org/10.1063/1.5129902
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