Development of fully-superconducting motor for large-capacity liquid hydrogen pump ~Operating demonstration of small prototype motor~

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K14964
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 21010:Power engineering-related
• Research Institution: Kyushu University
• Principal Investigator: Miura Shun 九州大学, システム情報科学研究院, 助教 (80804674)
• Project Period (FY): 2019-04-01 – 2021-03-31
• Keywords: 超伝導 / モータ / バルク / 水素 / ポンプ / 液体窒素 / 回転機 / 電気推進

Outline of Final Research Achievements

This fundamental research and development of superconducting motor for liquid Hydrogen pump was conducted for future Hydrogen society. The fully-superconducting motor employing superconducting bulk magnets instead of permanent magnet and superconducting windings instead of copper windings, was designed, fabricated and evaluated. The research results will have a spreading effect for not only pumps, but also electric-propulsion aircraft, flying car and offshore wind power.

Free Research Field

超伝導工学

Academic Significance and Societal Importance of the Research Achievements

解析や机上検討だけでは分からない実機製作への具体的な課題を、小型試作機の設計・試作・評価を通して明らかにした。特に回転試験により実際に超伝導モーターを回転させ、その動作を実証し、さらに現状の設計では振動が大きいという改善点を明らかにした。従来のモーターより飛躍的に軽量・高出力・高効率となる全超伝導モーターの実現に向けた重要な知見が得られた。