Study on Ripple Loss of Self-Shielding Superconducting DC Cable Used in Liquid Hydrogen Energy Pipeline

Abstract

Liquid hydrogen energy pipelines combine the transmission of electrical energy with hydrogen. Liquid hydrogen can not only be used as a cooling medium for superconducting dc cables but can also be used as a clean energy source for delivery, realizing highly efficient transmission of energy. Self-shielding superconducting dc cables (SSDCCs) have the advantages of no magnetic leakage and small critical current attenuation. This article presents a study of the application of the SSDCC in a liquid hydrogen energy pipeline. The critical current, magnetic field, and ripple loss of the cables at the temperature of liquid hydrogen are investigated by the T-A formulation. The findings indicate that the SSDCC can make the liquid hydrogen energy pipeline achieve more efficient transmission, which provides a novel perspective for the research of liquid hydrogen energy pipelines.