Analysis and design of a magnetically levitated planar motor with novel multilayer windings

Guo, Liang; Zhang, He; Galea, Michael; Lin, Jing; Lu, Wenqi; Gerada, C.

Abstract

This paper proposes a novel permanent magnet planar motor with moving multilayer orthogonal overlapping windings. This novel motor topology can achieve a five-degrees-of-freedom drive using two sets of x-direction windings and two sets of y-direction windings in a coreless configuration. The orthogonal multilayer construction guarantees a high utilization of the magnetic field and realizes decoupling between the x-direction thrust and the y-direction thrust. The topology and operating principle of the planar motor are introduced in this paper. The analytical modeling of the motor is established based on the equivalent current method, and the expressions of forces are derived. The force characteristics of the two-layer and three-layer winding topologies are compared, and the design guidelines of a planar motor are proposed. The analytical and 3-D finite-element model results are validated with the experimental results of a tested prototype.

Citation

Guo, L., Zhang, H., Galea, M., Lin, J., Lu, W., & Gerada, C. (2015). Analysis and design of a magnetically levitated planar motor with novel multilayer windings. IEEE Transactions on Magnetics, 51(8), https://doi.org/10.1109/TMAG.2015.2421281

• Journal Article Type: Article
• Acceptance Date: Mar 29, 2015
• Publication Date: Apr 8, 2015
• Deposit Date: Jun 8, 2016
• Publicly Available Date: Jul 13, 2016
• Journal: IEEE Transactions on Magnetics
• Print ISSN: 0018-9464
• Electronic ISSN: 1941-0069
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 51
• Issue: 8
• DOI: https://doi.org/10.1109/TMAG.2015.2421281
• Keywords: Analytical models; Degrees of freedom (mechanics); Electric machine theory; Finite element method; Linear motors; Magnetic levitation; Magnetic levitation vehicles; Multilayers; Permanent magnets; Topology; Winding; 3D finite element model; Equivalent cur
• Public URL: https://nottingham-repository.worktribe.com/output/750083
• Publisher URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7081764
• Additional Information: c2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
• Contract Date: Jun 8, 2016