A Simplified 2D Modeling Method for Electromagnetic Analysis of HTS Power Transmission Cable Spiraled With Coated Conductors

A two-dimensional (2D) modeling method, which takes helical structure of superconducting layers in HTS cables into consideration, is proposed to analyze electromagnetic properties of HTS power transmission cable. The model is characterized by E-J power law and H-formulation, and is successfully implemented by finite element software. We first expound the principle of using 2D model to simulate 3D structure of a HTS cable. Then, the modeling process is given. In order to verify the validity of the method, a 3D model was established as the control group, and the current distribution and AC loss were compared. The influence of the 3D structure parameters of the cable has been investigated, including the pitch of superconducting layers and the gap width between HTS tapes.