Characterization of High-Temperature Superconductor Bulks for Electrical Machine Application

Area of Science:

• Materials Science
• Electrical Engineering
• Applied Physics

Background:

• High-temperature superconducting (HTS) bulks are vital for advanced electrical applications.
• Characterizing large-size HTS bulks presents significant experimental challenges.
• Existing characterization methods are often limited to small samples.

Purpose of the Study:

• To present features of Yttrium Barium Copper Oxide (YBaCuO) bulks.
• To develop an electrical motor application utilizing magnetic field shielding and trapping.
• To introduce an innovative and comprehensive characterization method for entire HTS bulks.

Main Methods:

• Development of an electrical motor prototype using HTS bulks.
• Magnetic field shielding and trapping techniques were employed.
• A novel, non-destructive characterization technique for large HTS bulks was implemented.

Main Results:

• Key parameters, including complete penetration magnetic field and critical current density, were directly measured.
• The developed electrical motor demonstrated the practical application of HTS bulks.
• The innovative characterization method proved effective for large-size HTS samples.

Conclusions:

• The new characterization method overcomes limitations of classical techniques for large HTS bulks.
• This method provides essential data for end-users and engineers to effectively implement HTS bulks.
• The study facilitates wider adoption of HTS technology in electrical engineering.