Design optimization and performance comparison of two linear motor topologies with PM-less tracks (Invited)

S. Aleksandrov, T.T. Overboom, E. Lomonova

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review


Linear Permanent Magnet Synchronous Motor (LPMSM) topology is the preferable choice for a linear motor in terms of high force density and good overall performance. However, its main drawback is the relatively high price caused by the extensive usage of rare-earth materials in the track. This factor is critically important, especially when this type of motor has to be used in a long-stroke application, such as storage or airport transportation lines where the main prerequisite is a low-cost, passive and robust track. Therefore, Linear Induction Motor (LIM) and Linear FluxSwitching Permanent Magnet Motor (LFSPMM) are two possible alternatives suitable for long-stroke applications. Considering only the price of the track, LIM topology, with its flat aluminum secondary is most attractive. Nevertheless, the absence of rare-earth materials limits the propulsion force generated by the LIM. Another attractive alternative is the LFSPMM topology, which also has a passive secondary, but it incorporates a limited amount of rare-earth materials in its mover, improving its force generation capabilities. As a relatively new topology, the research on LFSPMM is still limited [1], [2]. The existing design solutions for LIM having relatively small volume, have lower force density [3], compared to the designs having much larger overall dimensions [4]. Therefore, a direct comparison between LIM and LFSPMM is very difficult. Based on the volume of a benchmark LPMSM topology, in this paper, a comparison between LIM and LFSPMM is performed. To obtain optimal designs within this volume, a fast converging, semi-analytical methods are used for modelling both topologies and the results are used to compare LIM and LFSPMM topologies.

Originele taal-2Engels
Titel2018 IEEE International Magnetics Conference (INTERMAG)
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Aantal pagina's2
ISBN van elektronische versie978-1-5386-6425-4
ISBN van geprinte versie978-1-5386-6426-1
StatusGepubliceerd - 24 okt 2018
Evenement2018 IEEE International Magnetics Conference (INTERMAG 2018) - Marina Bay Sands Convention Center, Singapore, Singapore, Singapore
Duur: 23 apr 201827 apr 2018


Congres2018 IEEE International Magnetics Conference (INTERMAG 2018)
Verkorte titelINTERMAG 2018
Internet adres


Citeer dit

Aleksandrov, S., Overboom, T. T., & Lomonova, E. (2018). Design optimization and performance comparison of two linear motor topologies with PM-less tracks (Invited). In 2018 IEEE International Magnetics Conference (INTERMAG) [8508565] Piscataway: Institute of Electrical and Electronics Engineers.