Modeling and Control of a Levitating Linear Motion Platform




Putkonen, Atte; Madanzadeh, Sadjad; Dodonov, Viktor; Zhuravlev, Andrei; Chechurin, Leonid; Jastrzebski, Rafal P.

N/A

International Conference on Electrical Machines

2024

Proceedings (International Conference on Electrical Machines)

2024 International Conference on Electrical Machines (ICEM)

979-8-3503-7061-4

979-8-3503-7060-7

2381-4802

2473-2087

DOIhttps://doi.org/10.1109/ICEM60801.2024.10700501

https://ieeexplore.ieee.org/document/10700501



This paper explores the application of a levitated linear motion platform implemented using linear flux-switching permanent magnet bearingless motors (LFSPM BMs). Flux-switching permanent magnet (FSPM) motor is an attractive motor type owing to its cost-effectiveness, which is achieved by placing the permanent magnets in the mover. Levitated linear motors are beneficial in special applications where, e.g., cleanliness and frictionless motion are needed. The paper focuses on accurate system modeling and control of a scaled -down proof-of-concept. The motor under study was modeled using the finite element method, yielding look-up tables of the force model, and by employing analytical equations of the motor. Simulation results are provided for a model-based levitation controller and a proportional-derivative (PD) traction controller. Challenges arise from the inherent force ripple when moving along the rail and from the slow inner loop bandwidth of the small-scale design of the system.



This work has been supported by Business Finland (Dnro 1803/31/2022, Linear Precision Motion Platform [Levitan])


Last updated on 2025-27-01 at 19:46