Home > Published Issues > 2023 > Volume 12, No. 2, March 2023 >
IJEETC 2023 Vol.12(2): 142-149
doi: 10.18178/ijeetc.12.2.142-149

Smart Current Measurement in Modern Power Grids with a Raspberry Pi and GMR Effect-Based Sensor

Alfredo Ricci 1, David Celeita 2*, and Gustavo Ramos1
1. Department of Electrical and Electronic Engineering, Universidad de los Andes, Bogotá, Colombia
2. School of Engineering, Science and Technology, Universidad del Rosario, Bogotá, Colombia

Manuscript received July 11, 2022; revised September 22, 2022; accepted November 10, 2022.

Abstract—The Giant magnetoresistance (GMR) effect has been presented as a highly viable current measurement alternative in electrical systems due to its low cost, versatility and high precision. This paper shows how the GMR effect can be used in current measurement in smart grids. The study contributes to the construction of a current measurement prototype which works by using the GMR effect. Subsequently, a data storage and processing server is created using a Raspberry Pi. Finally, a graphical interface capable of real-time monitoring of the data acquired by the sensor is designed and implemented. Different tests were carried out successfully, showing not only the viability of the GMR sensor as a current meter, but also the possibility of using other tools as a complement in order to create a product of great utility in intelligent measurement of smart grids.
Index Terms—Current measurement, electrical sensor, GMR effect, harmonic measurement, phasor measurement, smart grids

Cite: Alfredo Ricci, David Celeita, and Gustavo Ramos, "Smart Current Measurement in Modern Power Grids with a Raspberry Pi and GMR Effect-Based Sensor," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 12, No. 2, pp. 142-149, March 2023. Doi: 10.18178/ijeetc.12.2.142-149

Copyright © 2023 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.