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Research on a Non-Contact Multi-Electrode Voltage Sensor and Signal Processing Algorithm

Traditional contact voltage measurement requires a direct electrical connection to the system, which is not easy to install and maintain. The voltage measurement based on the electric field coupling plate capacitance structure does not need to be in contact with the measured object or the ground, wh...

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Autores principales: Zhang, Wenbin, Yang, Yonglong, Zhao, Jingjing, Huang, Rujin, Cheng, Kang, He, Mingxing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9659014/
https://www.ncbi.nlm.nih.gov/pubmed/36366268
http://dx.doi.org/10.3390/s22218573
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author Zhang, Wenbin
Yang, Yonglong
Zhao, Jingjing
Huang, Rujin
Cheng, Kang
He, Mingxing
author_facet Zhang, Wenbin
Yang, Yonglong
Zhao, Jingjing
Huang, Rujin
Cheng, Kang
He, Mingxing
author_sort Zhang, Wenbin
collection PubMed
description Traditional contact voltage measurement requires a direct electrical connection to the system, which is not easy to install and maintain. The voltage measurement based on the electric field coupling plate capacitance structure does not need to be in contact with the measured object or the ground, which can avoid the above problems. However, most of the existing flat-plate structure voltage measurement sensors are not only expensive to manufacture, but also bulky, and when the relative position between the wire under test and the sensor changes, it will bring great measurement errors, making it difficult to meet actual needs. Aiming to address the above problems, this paper proposes a multi-electrode array structure non-contact voltage sensor and signal processing algorithm. The sensor is manufactured by the PCB process, which effectively reduces the manufacturing cost and process difficulty. The experimental and simulation results show that, when the relative position of the wire and the sensor is offset by 10 mm in the 45° direction, the relative error of the traditional single-electrode voltage sensor is 17.62%, while the relative error of the multi-electrode voltage sensor designed in this paper is only 0.38%. In addition, the ratio error of the sensor under the condition of power frequency of 50 Hz is less than ±1% and the phase difference is less than 4°. The experimental results show that the sensor has good accuracy and linearity.
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spelling pubmed-96590142022-11-15 Research on a Non-Contact Multi-Electrode Voltage Sensor and Signal Processing Algorithm Zhang, Wenbin Yang, Yonglong Zhao, Jingjing Huang, Rujin Cheng, Kang He, Mingxing Sensors (Basel) Article Traditional contact voltage measurement requires a direct electrical connection to the system, which is not easy to install and maintain. The voltage measurement based on the electric field coupling plate capacitance structure does not need to be in contact with the measured object or the ground, which can avoid the above problems. However, most of the existing flat-plate structure voltage measurement sensors are not only expensive to manufacture, but also bulky, and when the relative position between the wire under test and the sensor changes, it will bring great measurement errors, making it difficult to meet actual needs. Aiming to address the above problems, this paper proposes a multi-electrode array structure non-contact voltage sensor and signal processing algorithm. The sensor is manufactured by the PCB process, which effectively reduces the manufacturing cost and process difficulty. The experimental and simulation results show that, when the relative position of the wire and the sensor is offset by 10 mm in the 45° direction, the relative error of the traditional single-electrode voltage sensor is 17.62%, while the relative error of the multi-electrode voltage sensor designed in this paper is only 0.38%. In addition, the ratio error of the sensor under the condition of power frequency of 50 Hz is less than ±1% and the phase difference is less than 4°. The experimental results show that the sensor has good accuracy and linearity. MDPI 2022-11-07 /pmc/articles/PMC9659014/ /pubmed/36366268 http://dx.doi.org/10.3390/s22218573 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Wenbin
Yang, Yonglong
Zhao, Jingjing
Huang, Rujin
Cheng, Kang
He, Mingxing
Research on a Non-Contact Multi-Electrode Voltage Sensor and Signal Processing Algorithm
title Research on a Non-Contact Multi-Electrode Voltage Sensor and Signal Processing Algorithm
title_full Research on a Non-Contact Multi-Electrode Voltage Sensor and Signal Processing Algorithm
title_fullStr Research on a Non-Contact Multi-Electrode Voltage Sensor and Signal Processing Algorithm
title_full_unstemmed Research on a Non-Contact Multi-Electrode Voltage Sensor and Signal Processing Algorithm
title_short Research on a Non-Contact Multi-Electrode Voltage Sensor and Signal Processing Algorithm
title_sort research on a non-contact multi-electrode voltage sensor and signal processing algorithm
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9659014/
https://www.ncbi.nlm.nih.gov/pubmed/36366268
http://dx.doi.org/10.3390/s22218573
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