Offline Fault Localization Technique on HVDC Submarine Cable via Time–Frequency Domain Reflectometry

Kwon, Gu-Young; Lee, Chun-Kwon; Lee, Geon Seok; Lee, Yeong Ho; Chang, Seung Jin; Jung, Chae-Kyun; Kang, Ji-Won; Shin, Yong-June

doi:10.1109/tpwrd.2017.2680459

Cited by 85 publications

(12 citation statements)

References 23 publications

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“…Reference signal [4][5][6][7] has a length 130 sampled data points with the sampling period 8 ns. In this experiment, 18 variants of the reference signal were constructed and analyzed in two groups.…”

Section: Reference Signalmentioning

confidence: 99%

Comparison of One-Dimensional and Two-Dimensional Reference Signal Representation for Insulation Aging State Recognition

Olkhovskiy

Mullerova

Martínek

2022

2022 International Conference on Diagnostics in Electrical Engineering (Diagnostika)

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This paper compares the performance of onedimensional and two-dimensional convolutional neural networks in the task of analyzing a reference signal while determining the degradation level of single-core polymerinsulated cable. In this work was designed the set of reference signals and several forms of representing of these signals in the form of one-dimensional and two-dimensional tensors. Then, an experimental determination of the most effective version of the reference signal is carried out in terms of classification accuracy and the most effective form of representation of this signal was found, as well as most efficient type of neural network.

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Section: Reference Signalmentioning

confidence: 99%

Comparison of One-Dimensional and Two-Dimensional Reference Signal Representation for Insulation Aging State Recognition

Olkhovskiy

Mullerova

Martínek

2022

2022 International Conference on Diagnostics in Electrical Engineering (Diagnostika)

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“…It plays a key role in international communication, energy transmission and internet connection. With the increasing demand for internet and communication, submarine cable will tend to have higher transmission capacity in the future [1].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on the Ampacity of 500 kV Single-Core and Three-Core Submarine Cable

Tao,

Liu,

Wang

et al. 2024

J. Phys.: Conf. Ser.

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Submarine cable is an important equipment for data communication and power transmission in power systems, which has a complex laying environment. According to its structure, submarine cables can be divided into two types, single-core cables and three-core cables. In practical engineering, cable selection is crucial to ensure the safe and stable operation of the cable and reduce the cost. The present work compares the ampacity of 500 kV single-core cable and three-core cable with the same conductor cross-section area under certain laying conditions. And the temperature rise situation of the three-core cable and the single-core cable is compared under the application of the same current. The results reveals that the ampacity of the three-core cable is less than one-core cable under certain laying situations. And the maximum ampacity reduction of the three-core cable is 28.96%. Furthermore, the highest temperature rise point of the three-core cable is the air section of the J-tube, and the maximum temperature reaches 130.07°C.

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“…Accurately locating faults in HVDC systems is crucial for efficient maintenance, ensuring service continuity, and minimizing maintenance time [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. One prominent approach in fault location methods is the traveling wave technique, which involves precisely determining when traveling waves from a faulty point arrive at the line ends by analyzing time differences and wave speeds [16][17][18][19][20][21][22][23][24][25][26]. However, the accuracy of this method can be compromised when dealing with non-homogeneous transmission systems, where multiple specific values of wave speed may be present.…”

Section: Introductionmentioning

confidence: 99%

Protection of HVDC Transmission Systems for Integrating Renewable Energy Resources

Zaky,

Ahmed,

Elsadd

et al. 2023

Eng. Technol. Appl. Sci. Res.

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This paper introduces a fault locator approach designed for non-homogeneous VSC-HVDC (Voltage Source Converter-High Voltage Direct Current) transmission circuits. In various projects, such as those involving offshore wind farms, the transmission circuit's right-of-way can be non-homogeneous, incorporating a mix of underground cables and overhead lines. This diversity in circuit configuration poses issues with fault location approaches. The proposed method involves measuring signals at two sides of the non-homogeneous transmission circuit. Initially, the faulted section is identified using a specific criterion. This criterion calculates the profile of the 1-mode component of the voltage along the transmission circuit, without considering its non-homogeneous nature. This method is founded upon disparities in the voltage change rate between power cables and overhead lines. The provided identification method does not depend on the calculation of fault distances. Subsequently, the faulty point within the selected section is obtained by updating the calculated voltage profile. Notably, our method does not necessitate the installation of additional sensors at junction points. Furthermore, the introduced approach has the capability to locate various fault types, including pole-to-pole and pole-to-ground faults, and it remains effective regardless of the fault resistance value. These investigations were conducted using PSCAD software as a simulation environment, with the proposed method's calculations executed in MATLAB.

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Offline Fault Localization Technique on HVDC Submarine Cable via Time–Frequency Domain Reflectometry

Cited by 85 publications

References 23 publications

Comparison of One-Dimensional and Two-Dimensional Reference Signal Representation for Insulation Aging State Recognition

Comparison of One-Dimensional and Two-Dimensional Reference Signal Representation for Insulation Aging State Recognition

Comparative Study on the Ampacity of 500 kV Single-Core and Three-Core Submarine Cable

Protection of HVDC Transmission Systems for Integrating Renewable Energy Resources

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