3D Numerical Studies of a Radial-Type Superconducting Magnetic Bearing Consisting of HTS Coils and PM
High temperature superconducting (HTS) coils have promising applications in superconducting magnetic bearings (SMB). In this paper, we designed a radial-type SMB consists of permanent magnet (PM) rotor and HTS coil stator. The internal rotor is a Halbach array of PM and iron sheet. The external stator consists of two closed double pancake HTS coils connected in series and an open-loop coil. A three-dimensional (3D) finite element model was established to analyze the levitation force and radial stability of the proposed SMB. The results indicate that the SMB can support load of 4613 N under 120 A current. The SMB exhibits an axial stiffness of 911 N/mm and a radial stiffness of 435 N/mm, with stiffness decreasing as the coil current increases. This work contributes to exploring the potential of HTS coils in bearing applications and guides the design of SMB.
Authors
- Jianzhao Geng (ORCID: https://orcid.org/0000-0002-0808-8567)
- Qi Xu (ORCID: https://orcid.org/0000-0002-9795-1616)
- Changhao Hu (ORCID: https://orcid.org/0009-0009-9964-8395)
- Lin Yi (ORCID: https://orcid.org/0009-0009-3037-8569)
- Ruixiang Wang (ORCID: https://orcid.org/0009-0003-9438-0744)
Institutions
- Wuhan National Laboratory for Optoelectronics (CN)
- Huazhong University of Science and Technology (CN)
Publication Details
- Journal
- IEEE Transactions on Applied Superconductivity
- Published
- 2025-03-06
- DOI
- https://doi.org/10.1109/tasc.2025.3544616
- Citations
- 2
- Primary Topic
- Magnetic Bearings and Levitation Dynamics
- Type
- article
- Field-Weighted Citation Impact
- 2.43