Abstract
The 500 kV submarine cable-operating environment of the Hainan Networking System is complex and changeable, which will directly affect the operating status of the submarine cable. In order to effectively grasp the operating status of the three-phase 31 km submarine cable in the Hainan Interconnection System, it is essential to study the integrated online monitoring technology for the operating status of the oil-filled submarine cable. In accordance with the actual operation and monitoring requirements of submarine cables and the special structure of oil-filled submarine cables bundled with communication optical cables, this paper carries out the research of distributed optical fiber temperature sensing technology based on Brillouin optical time-domain analysis, and establishes a thermal circuit model of the temperature and thermal field distribution of the oil-filled submarine cable based on the IEC 60287 thermal circuit model. A comprehensive online monitoring system for the operating status of the 500 kV oil-filled submarine cable has been developed, and the on-site installation and network operation of the system have been completed. The system can monitor the operating parameters of the submarine cable in real time, such as temperature, oil llou . and oil pressure. Through the analysis of historical data of the submarine cable temperature, oil flow and oil pressure, it shows that the system can monitor the operating status of the submarine cable in real time and operate stably and reliably.
| Original language | English |
|---|---|
| Pages (from-to) | 133-139 and 169 |
| Journal | Electrical Measurement and Instrumentation |
| Volume | 58 |
| Issue number | 10 |
| DOIs | |
| State | Published - 15 Oct 2021 |
Keywords
- Brillouin optical time domain analysis
- distributed optical fiber sensing technology
- oil flow
- oil pressure
- oil-filled submarine cable
- temperature
- thermal circuit model