关键词: 侧挂式磁悬浮系统, 稳定悬浮原理, 数学模型, 控制仿真, 实验验证

Abstract: In order to broaden the suspension form of the magnetic levitation globe, a new type of side-mounted magnetic suspension system was proposed. The basic structure of the system was introduced and structural selection was conducted. The stable suspension principle of the system was analyzed from the perspective of the magnetic force distribution of the system. The mathematical model of the system was established, and the control simulations were carried
out under the step displacement and step disturbance in order to verify the static and dynamic performance of the system. The experimental prototype of the side-mounted magnetic levitation system was built, and its stable levitation performance and displacement tracking performance experiments were carried out. The experimental results show that although the system had slight oscillation, it could be suspended stably for a long time. When the system was subjected to an interference force of 0. 5 N vertically downward, it could still maintain a stable floating state after a brief adjustment of 0. 54 s, with a steady-state displacement error of no more than 0. 273 6 mm; when applying a step displacement response of 0. 5 mm in the vertical direction, the system could stably follow the reference displacement signal, the response time was 0. 73 s and the tracking displacement error did not exceed 0. 432 1 mm.

Key words: side-mounted magnetic levitation system, principle of stable suspension, mathematical model, control simulation,experimental verification