Location of Single-Line-to-Ground Fault Using 1-D Convolutional Neural Network and Waveform Concatenation in Resonant Grounding Distribution Systems
Autor: | Xiang Shao, Mou-Fa Guo, Jian-Hong Gao, Duan-Yu Chen |
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Rok vydání: | 2021 |
Předmět: |
Ground
Computer science 020208 electrical & electronic engineering Feature extraction Concatenation 02 engineering and technology Fault (power engineering) Convolutional neural network Fault indicator 0202 electrical engineering electronic engineering information engineering Waveform Transient (oscillation) Electrical and Electronic Engineering Instrumentation Algorithm |
Zdroj: | IEEE Transactions on Instrumentation and Measurement. 70:1-9 |
ISSN: | 1557-9662 0018-9456 |
DOI: | 10.1109/tim.2020.3014006 |
Popis: | Nowadays, smart monitoring devices such as digital fault indicator (DFI) have been installed in distribution systems to provide sufficient information for fault location. However, it is still a challenge to extract effective features from massive data for single-line-to-ground (SLG) fault-section location. This work proposes a novel method of fault-section location using a 1-D convolutional neural network (1-D CNN) and waveform concatenation. After SLG fault occurs, DFI measures the transient zero-sequence currents at double-ends of the line section, which could be concatenated to construct characteristic waveform. The features of characteristic waveforms would be extracted adaptively by 1-D CNN to locate the fault section. Furthermore, the problem where the on-site recorded data are hard to collect would be solved because 1-D CNN only needs a small number of samples for training in practical applications. The experimental results verified that the proposed method could work effectively under various fault conditions, even if a few DFIs are out of order. |
Databáze: | OpenAIRE |
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