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| Content Provider | IET Digital Library |
|---|---|
| Author | Li, Yilin Yin, Xianggen Chen, Rui |
| Abstract | When single-phase arc grounding fault occurs in the neutral ungrounded distribution system, the fault can be transferred by artificially grounding the faulty phase of the busbar, which can effectively improve the fault handling capability of distribution system. The theoretical analysis shows that the characteristic of transient zero-mode current is obviously different between grounding fault and fault transferred. That is to say, in the two grounding processes, the directions of the transient zero-mode current of the fault line are opposite and the direction of the transient zero-mode current of the non-fault line is identical. So, the fault line can be determined based on this theory. The zero-mode current of each line is analysed by wavelet packet decomposition, and the feature band is selected according to the point of maximum energy. The correlation coefficient polarity between two reconstructed data, each is extracted from the first quarter of power cycle of grounding process in respective feature band, is used to determine the criterion for fault line selection. This method only uses its own line information to choose fault line without any other line information. Simultaneously, number of simulation results shows that the method is accurate and reliable. |
| Starting Page | 2822 |
| Ending Page | 2826 |
| Page Count | 5 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 16, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8464 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-29 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Arcs (electric) Busbars Correlation Coefficient Polarity Distribution Network Earthing Fault Handling Capability Fault Line Selection Fault Location Feature Band Grounding Process Line Information Maximum Energy Neutral Ungrounded Distribution System Nonfault Line Power Distribution Fault Power System Protection Reconstructed Data Single-phase Arc Grounding Fault Transient Line Selection Transient Zero-mode Current Wavelet Packet Decomposition Wavelet Transform |
| Content Type | Text |
| Resource Type | Article |
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