Abstract
This paper presents the design and testing of a two degree-of-freedom (DOF) magnetic levitator which is capable of controlling the levitational- and lateral-direction forces in a decoupled manner using a single-body actuator. Our 2-DOF levitator is composed of an U-shaped iron-core, an internal permanent magnet (PM), and a pair of actuating coil windings. A 1-inch steel ball is used as a levitated target, and its position is measured in real-time by dual fiber optic sensors. The two perpendicular forces are generated and decoupled by the combination of the PM-biased flux and the coil-driven flux in the common and differential current-excitation modes. We present our control strategy for the decoupled 2-DOF stabilization, and experimentally validate the control performance of our 2-DOF actuator. Using our actuator and the decoupled 2-DOF control, we achieve the significant improvement on the stiffness and the damping of the levitated target in the transportation direction, thereby achieving 82 % reduction in the lateral deviation and 99 % reduction in the settling time as compared to a general 1-DOF magnetic levitation system. Such promising results show a significant potential of our single-body 2-DOF levitator for the high-throughput non-contact object transportation.
| Original language | English |
|---|---|
| Title of host publication | 2022 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2022 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 932-937 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781665413084 |
| DOIs | |
| Publication status | Published - 2022 |
| Event | 2022 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2022 - Sapporo, Japan Duration: 2022 Jul 11 → 2022 Jul 15 |
Publication series
| Name | IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM |
|---|---|
| Volume | 2022-July |
Conference
| Conference | 2022 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2022 |
|---|---|
| Country/Territory | Japan |
| City | Sapporo |
| Period | 22/7/11 → 22/7/15 |
Bibliographical note
Funding Information:This work was supported in part by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT)(No. 2020R1C1C100801311), in part by Korea Institute for Advancement of Technology (KIAT) grant funded by the Korea government (MOTIE)(P0012744), The Competency Development Program for Industry Specialist), and also in part by the Yonsei University Research Fund under Grant 2020-22-0098. (Corresponding author: Jun Young Yoon.) J W Jung, E K Kim, H M Yoon, and J Y Yoon are with the Department of Mechanical Engineering, Yonsei University, Seoul 03722 South Korea junyoung.yoon@yonsei.ac.kr
Publisher Copyright:
© 2022 IEEE.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
- Control and Systems Engineering
- Computer Science Applications
- Software