Simulation and Test of a Contactless Voltage Measurement Method for Overhead Lines Based on Reconstruction of Integral Node Parameters
1
State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing 400044, China
2
Southwest China Branch, State Grid Corporation of China, Chengdu 610041, China
3
School of Software, Nanchang Hangkong University, Nanchang 330063, China
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(1), 246; https://doi.org/10.3390/s20010246
Received: 30 November 2019
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Revised: 27 December 2019
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Accepted: 30 December 2019
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Published: 31 December 2019
(This article belongs to the Section Sensor Networks)
To improve the stability and adaptability of the voltage measurement based on the E-field (electric field) integral method, in this paper we introduce a new method for the contactless voltage measurement of the overhead lines. The method adopts the node parameter reconstruction technology, which is based on the Gauss–Chebyshev algorithm. In order to achieve high-quality E-field detection at the reconstructed node position, we designed a novel D-dot sensor with parallel distributed electrodes. A Maxwell simulation model of multi-level voltages of the overhead lines was carried out to determine a comprehensive criterion of the reconstruction factors. The simulation employed a three-phase overhead line experiment platform to calculate and measure the distribution and the changing trend of the E-field. The deviations of the voltage measurement were reduced at a significantly low level within 0.4%. The result of the simulation demonstrates that the method optimizes sensor distribution by reconstructing node parameters, which enables the system to have high accuracy and reliability on the contactless voltage measurement of the overhead lines.
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Keywords:
contactless measurement; E-field integral method; field-source solution; Gauss–Chebyshev algorithm; parameters reconstruction
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MDPI and ACS Style
Wang, J.; Yan, X.; Zhong, L.; Zhu, X. Simulation and Test of a Contactless Voltage Measurement Method for Overhead Lines Based on Reconstruction of Integral Node Parameters. Sensors 2020, 20, 246. https://doi.org/10.3390/s20010246
AMA Style
Wang J, Yan X, Zhong L, Zhu X. Simulation and Test of a Contactless Voltage Measurement Method for Overhead Lines Based on Reconstruction of Integral Node Parameters. Sensors. 2020; 20(1):246. https://doi.org/10.3390/s20010246
Chicago/Turabian StyleWang, Jingang, Xiaojun Yan, Lu Zhong, and Xiaobao Zhu. 2020. "Simulation and Test of a Contactless Voltage Measurement Method for Overhead Lines Based on Reconstruction of Integral Node Parameters" Sensors 20, no. 1: 246. https://doi.org/10.3390/s20010246
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