Calculation for design of new HTS DC power cables

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420928
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Energy engineering
• Research Institution: Chubu University
• Principal Investigator: WATANABE Hirofumi 中部大学, 超伝導・持続可能エネルギー研究センター, 准教授 (10447584)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 超伝導直流送電 / 超伝導ケーブル / 臨界電流

Outline of Final Research Achievements

It is known that a critical current of an HTS tape depends on a magnetic field distribution around it. Since an HTS DC power cable is composed of a number of HTS tapes, the magnetic field distribution around the HTS tape in the cable and its critical current depend on the arrangement of the HTS tapes. A program calculating critical currents of cables was developed in this study. To develop the program, the relationship between a magnetic flux density and a critical current density was obtained experimentally.
Numerical models of cables were composed and their critical currents were calculated. The calculated results showed that the critical currents depended on the arrangements of the HTS tapes strongly. Model cables were assembled based on the numerical models and their critical currents were measured. The calculated results agreed well with the experimental ones, which indicated that the program developed in this study worked well.

Free Research Field

超伝導直流送電システム