Stabilization of a Magnetic Repulsive Levitation Flywheel System Using a High-Efficiency Superconducting Magnetic Bearing
In this study, we developed a superconducting magnetic bearing using a permanent repulsive magnet. A repulsive magnetic levitation system with a permanent magnet can generate a strong levitation force in the absence of a power supply. However, it is unstable, except in the direction of repulsion. In...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Actuators |
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| Online Access: | https://www.mdpi.com/2076-0825/11/7/180 |
| _version_ | 1797441570396438528 |
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| author | Iwanori Murakami Yiming Zhao Tatuhiro Tashiro |
| author_facet | Iwanori Murakami Yiming Zhao Tatuhiro Tashiro |
| author_sort | Iwanori Murakami |
| collection | DOAJ |
| description | In this study, we developed a superconducting magnetic bearing using a permanent repulsive magnet. A repulsive magnetic levitation system with a permanent magnet can generate a strong levitation force in the absence of a power supply. However, it is unstable, except in the direction of repulsion. In contrast, superconducting magnetic bearings can generate a restoring force in all directions by utilizing the magnetic flux pinning property of the superconductors. Therefore, we constructed a superconducting magnetic bearing (SMB), which is stable along all axes without control, and has a strong axial levitation force, by combining a repulsive-type magnetic levitation system and a superconducting magnetic levitation system. We also reduced the amount of HTS used for the SMB and proposed an efficient method of using HTS. Furthermore, a driving test of the flywheel incorporating the SMB was conducted to verify the characteristics of the SMB. The experiment confirmed that the flywheel could overcome the resonance and drive the flywheel. In the drive experiment, the flywheel was driven up to 10,000 rpm. |
| first_indexed | 2024-03-09T12:26:01Z |
| format | Article |
| id | doaj.art-a62ad8a17be04030b73279e8959bfc43 |
| institution | Directory Open Access Journal |
| issn | 2076-0825 |
| language | English |
| last_indexed | 2024-03-09T12:26:01Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj.art-a62ad8a17be04030b73279e8959bfc432023-11-30T22:35:26ZengMDPI AGActuators2076-08252022-06-0111718010.3390/act11070180Stabilization of a Magnetic Repulsive Levitation Flywheel System Using a High-Efficiency Superconducting Magnetic BearingIwanori Murakami0Yiming Zhao1Tatuhiro Tashiro2Division of Mechanical Science and Technology, Gunma University, 1-5-1 Tenjin, Kiryu 376-8515, JapanDivision of Mechanical Science and Technology, Gunma University, 1-5-1 Tenjin, Kiryu 376-8515, JapanDivision of Mechanical Science and Technology, Gunma University, 1-5-1 Tenjin, Kiryu 376-8515, JapanIn this study, we developed a superconducting magnetic bearing using a permanent repulsive magnet. A repulsive magnetic levitation system with a permanent magnet can generate a strong levitation force in the absence of a power supply. However, it is unstable, except in the direction of repulsion. In contrast, superconducting magnetic bearings can generate a restoring force in all directions by utilizing the magnetic flux pinning property of the superconductors. Therefore, we constructed a superconducting magnetic bearing (SMB), which is stable along all axes without control, and has a strong axial levitation force, by combining a repulsive-type magnetic levitation system and a superconducting magnetic levitation system. We also reduced the amount of HTS used for the SMB and proposed an efficient method of using HTS. Furthermore, a driving test of the flywheel incorporating the SMB was conducted to verify the characteristics of the SMB. The experiment confirmed that the flywheel could overcome the resonance and drive the flywheel. In the drive experiment, the flywheel was driven up to 10,000 rpm.https://www.mdpi.com/2076-0825/11/7/180magnetic repulsive levitationhigh-temperature superconductormagnetic bearingmaking efficientflywheel |
| spellingShingle | Iwanori Murakami Yiming Zhao Tatuhiro Tashiro Stabilization of a Magnetic Repulsive Levitation Flywheel System Using a High-Efficiency Superconducting Magnetic Bearing Actuators magnetic repulsive levitation high-temperature superconductor magnetic bearing making efficient flywheel |
| title | Stabilization of a Magnetic Repulsive Levitation Flywheel System Using a High-Efficiency Superconducting Magnetic Bearing |
| title_full | Stabilization of a Magnetic Repulsive Levitation Flywheel System Using a High-Efficiency Superconducting Magnetic Bearing |
| title_fullStr | Stabilization of a Magnetic Repulsive Levitation Flywheel System Using a High-Efficiency Superconducting Magnetic Bearing |
| title_full_unstemmed | Stabilization of a Magnetic Repulsive Levitation Flywheel System Using a High-Efficiency Superconducting Magnetic Bearing |
| title_short | Stabilization of a Magnetic Repulsive Levitation Flywheel System Using a High-Efficiency Superconducting Magnetic Bearing |
| title_sort | stabilization of a magnetic repulsive levitation flywheel system using a high efficiency superconducting magnetic bearing |
| topic | magnetic repulsive levitation high-temperature superconductor magnetic bearing making efficient flywheel |
| url | https://www.mdpi.com/2076-0825/11/7/180 |
| work_keys_str_mv | AT iwanorimurakami stabilizationofamagneticrepulsivelevitationflywheelsystemusingahighefficiencysuperconductingmagneticbearing AT yimingzhao stabilizationofamagneticrepulsivelevitationflywheelsystemusingahighefficiencysuperconductingmagneticbearing AT tatuhirotashiro stabilizationofamagneticrepulsivelevitationflywheelsystemusingahighefficiencysuperconductingmagneticbearing |