超导直流能源管道的研究进展

The combination of superconducting transmission technology and LNG pipeline transportation technology to form an energy pipeline to transport LNG and electricity at the same time, can not only alleviate the tension of energy channels but also improve energy transmission efficiency and economy by using LNG to cool superconducting cables, which is a promising energy transmission mode. Therefore, supported by the national "smart grid and equipment" key research and development plan, we carried out the basic research on the superconducting DC energy pipeline. This paper mainly introduces the research progress of the superconducting DC energy pipeline project in the recent one and a half year, which includes: the low-temperature liquid-solid transition mechanism, the heat transfer and flow characteristics of mixed LNG mixtures, the dynamic stability criterion of integrated power/LNG transportation, the experimental platform and preliminary experimental results for safety and fault evolution analysis, and the development and test of the 10m/10kV energy pipeline prototype.