Analysis of a Novel Double-Sided Yokeless Multitooth Linear Switched-Flux PM Motor

Shen, Yiming; Lu, Qinfen; Li, Huanwen; Cai, Jiahong; Huang, Xiaoyan; Fang, Youtong

doi:10.1109/tie.2017.2696492

Cited by 66 publications

(17 citation statements)

References 26 publications

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“…To enhance machine's overall performance that includes increase of three-phase no-load and on-load flux linkage, average thrust force, and thrust force density due to AC winding current density and PM volume; and decrease of thrust force ripple ratio, the SBDO approach [13,22,23] is applied. Electrical loading, magnetic loading, armature coil slot area, stator pole pitch, mover pole pitch, stack length, and air-gap length are kept constant during the optimisation process.…”

Section: Structure-based Deterministic Optimisation Of 12/1dmlpmfsmmentioning

confidence: 99%

Performance comparison and optimisation of dual mover linear permanent magnet flux switching machine

Ullah

Khan

Basit

et al. 2019

IET Electric Power Applications

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Short moving primary and rigid low-cost secondary are important requirements of linear machines designed for long stroke applications. In the race, linear permanent magnet flux switching machine (LPMFSM) is a competitive candidate by confining excitation sources to short mover, thus making stator robust and low cost (made of only iron). However, single-sided LPMFSM exhibit a demerit of high normal (attraction) force due to its topology. In order to rectify the problem and enhance thrust force profile, two novel double-sided LPMFSMs are proposed with dual stator and dual mover topologies. After stator pole study, both topologies with same design dimensions are analysed and compared by 2-D finite element method here. Detailed analysis revealed that 12/14 DMLPMFSM exhibit low numerical values of thrust force ripples and detent force while maintaining average thrust force value. Hence, 12/14 DMLPMFSM is selected and optimised by structure-based deterministic optimisation (SBDO) approach to further enhance thrust force profile. Finally, comparison of initial and optimised design of 12/14 DMLPMFSM is presented to validate optimisation procedure.

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Section: Structure-based Deterministic Optimisation Of 12/1dmlpmfsmmentioning

confidence: 99%

Performance comparison and optimisation of dual mover linear permanent magnet flux switching machine

Ullah

Khan

Basit

et al. 2019

IET Electric Power Applications

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“…The SVGO technique, also known as deterministic optimization [25,28,33], is applied to increase the average thrust force and decrease peak-to-peak detent force, thrust force ripples, no-load flux linkage THD, and thrust force ripple ratio of DSLFSPMM-M3. Increase of average thrust force is set as a priority for the selection of machine configuration.…”

Section: Single Variable Geometric Optimization (Svgo) Of Dslfspmm-m3mentioning

confidence: 99%

“…Comparison of double stator and double mover LFSM is performed in [24] and the authors claim an advantage of a low thrust force ratio for the DSLFSM structure with moving primary (mover). Analysis and design of a LFSPMM with a yokeless double stator conventional topology is presented in [25,26] and one with multitooth topology is presented in [27,28]. On the other hand, the multi-tooth configuration would result in more severe magnetic leakage on the mover pole, which could easily saturate the mover iron teeth even with a light electric load.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Capabilities of Double Sided Linear Flux Switching Permanent Magnet Machines

et al. 2018

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Double sided linear flux switching permanent magnet machines (DSLFSPMMs) exhibit high thrust force density, high efficiency, low cost and robust double salient secondary (stator) structures. The aforementioned unique features make DSLFSPMM suitable for long stroke applications. However, distorted flux linkage waveforms and high detent forces can exaggerate thrust force ripples and reduce their applicability in many areas. In order to enhance thrust force performance, reduce thrust force ripple ratio and total harmonic distortion (THD) of no-load flux linkages, two structure-based advancements are introduced in this work, i.e., asynchronous mover slot and stator tooth displacement technique (AMSSTDT) and the addition of an active permanent magnet end slot (APMES). Furthermore, single variable geometric optimization (SVGO) is carried out by the finite element method (FEM).

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“…This type of LSMs can adopt single-sided, double-sided with yoke, yokeless double-sided format, etc. [13]. In order to overcome the high temperature rise of PMs which is caused by direct contact between PMs and armature windings, the structure of FSLMs can be further improved by separating the primary into two parts, which is called primary-partitioned FSLM (PPFSLM).…”

Section: B Linear Flux-switching Machinesmentioning

confidence: 99%

Recent development of linear machine topologies and applications

Mei

2018

Trans. Electr. Mach. Syst.

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Analysis of a Novel Double-Sided Yokeless Multitooth Linear Switched-Flux PM Motor

Cited by 66 publications

References 26 publications

Performance comparison and optimisation of dual mover linear permanent magnet flux switching machine

Performance comparison and optimisation of dual mover linear permanent magnet flux switching machine

Enhancing Capabilities of Double Sided Linear Flux Switching Permanent Magnet Machines

Recent development of linear machine topologies and applications

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