Fault section identification method for the UHV GIL-overhead hybrid line
| Autor: | Botong Li, Tianfeng Gu, Zhongqing Li, Bin Li |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
hybrid power systems
power transmission faults gas insulated transmission lines power overhead lines UHV GIL-overhead hybrid transmission line fault section identification function method UHV waters China protection selective tripping electrical parameters Engineering (General). Civil engineering (General) TA1-2040 |
| Zdroj: | The Journal of Engineering (2019) |
| Druh dokumentu: | article |
| ISSN: | 2051-3305 |
| DOI: | 10.1049/joe.2018.8693 |
| Popis: | GIL-overhead hybrid transmission line is an essential way for UHV waters crossing power transmission over long distance in china. The fault section identification of the UHV GIL-overhead hybrid line is a previous work for the protection selective tripping and quick repair after fault. The characteristics of the electrical parameters in different sections of the UHV GIL-overhead hybrid line are analysed first. Regarding the joint of the UHV GIL-overhead hybrid line as the reference point, a fault section identification function is established. According to the characteristics of the complex plane derived from the function, a fault section identification method is proposed for the UHV GIL-overhead hybrid line. The accuracy of the fault section identification method is tested by simulation and the factors affecting the accuracy of the algorithm are analysed. |
| Databáze: | Directory of Open Access Journals |
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