Characteristics of Electromagnetic Disturbance for Intelligent Component Due to Switching Operations via a 1100 kV AC GIS Test Circuit

Wu, Hengtian; Cui, Xiang; Liu, Xiaofan; Jiao, Chongqing; Hu, Rong; Chen, Weijiang; Wang, Lei

doi:10.1109/tpwrd.2016.2600277

Cited by 34 publications

(10 citation statements)

References 17 publications

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“…Digital Object Identifier 10.1109/TEMC.2023.3245206 countermeasures have been studied through measurements in actual substations or test platforms (e.g., [2], [3], [4], [5], [6], [7], [8], and [9]). On the other hand, numerical simulations are also practical tools for predicting electromagnetic transient phenomena and evaluating the effectiveness of countermeasures.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, numerical simulations are also practical tools for predicting electromagnetic transient phenomena and evaluating the effectiveness of countermeasures. Traditionally, circuit-theory-or transmission-line (TL)-theory-based simulation techniques have been studied for the electromagnetic transient analysis of secondary circuits [7], [8], [9], [10], [11], [12], [13], [14], [15], and simulation techniques for modeling high-frequency voltage and current transformers (VT and CT, respectively) have been proposed based on circuit elements and the use of the black-box technique [16], [17], [18], [19].…”

Section: Introductionmentioning

confidence: 99%

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Three-Dimensional FDTD-Based Simulation of Lightning-Induced Surges in Secondary Circuits With Shielded Control Cables Over Grounding Grids in Substations

Tatematsu

Yamanaka

2023

IEEE Trans. Electromagn. Compat.

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Nowadays, plenty of sensitive electronic devices are installed in secondary circuits in substations. When lightning strikes a substation and transmission line, lightning currents flow into the grounding structure of the substation through shield wires and lightning surge arresters in the primary circuit, and lightning overvoltages are induced on control cables in the secondary circuit owing to the effect of transient ground potential rises of the grounding structure and electromagnetic coupling. Shielded control cables are one of the countermeasures against lightning overvoltage induced on control cables; thus, it is useful to evaluate the effectiveness of shielded control cables for designing protection measures properly. Recently, the finite-difference time-domain (FDTD) method, which is one of the full-wave numerical approaches, has been commonly used for simulating electromagnetic transient phenomena in grounding structures, such as the grounding grids of substations. In this work, first, we studied the modeling of tape-type shielded control cables used in substations for FDTD-based electromagnetic transient analyses. Then, using the control cable model, we simulated a test platform of primary and secondary circuits in a substation and calculated the transient response of a grounding grid and voltages induced on the control cable when a lightning impulse current was injected into the grounding grid. We then compared the calculated results with the measured waveforms for validation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Three-Dimensional FDTD-Based Simulation of Lightning-Induced Surges in Secondary Circuits With Shielded Control Cables Over Grounding Grids in Substations

Tatematsu

Yamanaka

2023

IEEE Trans. Electromagn. Compat.

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“…The result of the measurement, which was done by Hengtian WU and others, on the sensor ports in the 1100 kV GIS tested circuit showed the maximum disturbance voltage of intelligent component ports on the sensor exceeded 7 kV. The distribution of the main frequency of disturbance voltage of these ports concentrated on three frequency points of 5, 10 and 20 MHz [12]. Subject to the restriction of field conditions of the substations in question, however, only a small number of measurement samples are obtained in the above studies.…”

Section: Introductionmentioning

confidence: 99%

A quantitative research on the level of disturbance to secondary signal ports of electronic voltage transformers under the operation of gas‐insulated switchgear

Wang¹,

Fu²,

Chu³

et al. 2021

High Voltage

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The collectors of electronic transformers has the problem of electromagnetic incompatibility under the operation of disconnecting switches, which limits their wide application in smart grids. To evaluate the maximum level of disturbance that collectors are able to withstand in the stochastic process of switching operation, this work introduces a quantitative approach based on limited test measurements, which can quantify the level of disturbance in the signal acquisition ports of electronic voltage transformers (EVT) in different gas-insulated switchgears (GIS). Based on large numbers of experimental statistical data of the true type simulation experimental platform, the Spearman rank correlation coefficient is used to prove that the amplitude of the disturbance voltage pulse at the secondary side port and the breakdown voltage between the primary side fracture approximately satisfy a linear relationship. Subsequently, the quantile regression model is used to quantify and verify the maximum disturbance level of the secondary side port. Moreover, a solution is proposed to tackle the difficulty in obtaining the breakdown voltage at breaks in the GIS substation field applicatvion, under which the quantified maximum disturbance voltage deviation of secondary ports is only −4.34% by comparison. The research work can further explore the practical value of the measured data in a few tests under GIS substation field conditions and provide references for the subsequent revision of EVT-related standards.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…Compared with the traditional air insulated switchgear (AIS) substations, gas insulated switchgear (GIS) substations have many advantages such as less occupied space, safe operation, and easy maintenance. In order to improve the intelligence level of GIS substations, intelligent electronic devices (IEDs) are being extensively applied in GIS substations [1,2]. The electronic transformer is one part of IEDs, and it is the most critical metering device in GIS substations.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Disturbed Mechanism of Electronic Current Transformer Acquisition Card under High Frequency Electromagnetic Interference

Liu

Zhao

et al. 2020

Electronics

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The electronic current transformer (ECT) acquisition card is widely used in smart grids with many advantages. However, with the continuous improvement of the power grid and localized intelligent electronic devices, the electromagnetic environment under the operating conditions of gas insulated switchgear (GIS) substations is becoming more complicated. The reliability and safety of the ECT acquisition card will be endangered due to the complicated electromagnetic environment. In order to solve these problems, this paper investigates the electromagnetic disturbed mechanism of the ECT acquisition card. The effects of different grounding methods on the electromagnetic interference of the ECT acquisition card were studied. A platform based on IEC 61000-4-4 was built, and the electromagnetic interference (EMI) of the ECT acquisition card with different grounding methods was measured. The results show that the lower grounding impedance of the ECT acquisition system increased the internal EMI. Further, the high frequency electrical fast transient/burst coupling mechanism was analyzed. The parasitic parameters of the acquisition card were extracted based on the critical circuit by using the finite element method. Then, the high-frequency EMI coupling model of the ECT acquisition card was established.

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Characteristics of Electromagnetic Disturbance for Intelligent Component Due to Switching Operations via a 1100 kV AC GIS Test Circuit

Cited by 34 publications

References 17 publications

Three-Dimensional FDTD-Based Simulation of Lightning-Induced Surges in Secondary Circuits With Shielded Control Cables Over Grounding Grids in Substations

Three-Dimensional FDTD-Based Simulation of Lightning-Induced Surges in Secondary Circuits With Shielded Control Cables Over Grounding Grids in Substations

A quantitative research on the level of disturbance to secondary signal ports of electronic voltage transformers under the operation of gas‐insulated switchgear

Electromagnetic Disturbed Mechanism of Electronic Current Transformer Acquisition Card under High Frequency Electromagnetic Interference

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