作者
Jiawei Yuan, Tong Wu, Yanjie Hu, Zaibin Jiao
发表日期
2022/12/1
期刊
International Journal of Electrical Power & Energy Systems
卷号
143
页码范围
108434
出版商
Elsevier
简介
Faulty-feeder detection is essential for fault location and fault isolation after single line-to-ground (SLG) faults in distribution networks. However, the SLG fault currents are weak, and the fault conditions are complex, thus posing great challenges for faulty-feeder detection. To improve the detection accuracy and reliability, a novel detection method based on waveform recognition is proposed, and it only requires zero-sequence voltage (ZSV) on bus and local zero-sequence current (ZSC), not ZSCs of all feeders. Firstly, the ZSV and local ZSC are superimposed in the same plot, and the ZSV-ZSC image for each feeder is generated. Subsequently, each image is individually identified using the established convolutional neural network with spatial attention residual learning blocks, which has strong discriminative capability. Finally, the fault and non-fault states of each feeder can be distinguished based on the …
引用总数