Characteristic Analysis and Harmonic Function Validation of 3-D Modulation Effect for Magnetic Lead Screw Transmission

作者：Zhijian Ling, Wenxiang Zhao, Yubo Sun, Jinghua Ji, Meimei Xu · 发表于：IEEE Transactions on Transportation Electrification · 年份：2024 · DOI：10.1109/tte.2024.3399749 · 被引用次数：12 · 研究领域：Electric Motor Design and Analysis、Magnetic Bearings and Levitation Dynamics、Vibration and Dynamic Analysis

This paper aims to demonstrate the three dimensions (3-D) harmonic function characteristics and modulation theory of the magnetic lead screw (MLS) transmission. The MLS enables the conversion of rotational motion into linear motion and vice versa by helical magnetic fields, thereby significantly suitable for linear motions. Due to its helical structure, the magnetic field of the MLS exhibits a 3-D distribution with both axial and circumferential components, respectively. Therefore, a novel helical detection method is proposed to analyze the 3-D magnetic field intuitively. Moreover, as the conversion capability is a key part of the MLS, the harmonic function and modulation mechanism for variable modulation MLSs are analyzed. Furthermore, a new concept of multi-harmonic MLS is proposed, and the effects of 3-D modulation and harmonics coordination characteristics are analyzed. Finally, the prototypes of different MLS topologies are manufactured and tested. The feasibility of using the 3-D magnetic transmission technology is validated by experimental results.