A Novel PMSM with Optimized Asymmetric Eccentric Air-Gap for High-Power Electric Motorcycle

Cui, Weimin; Hu, Bowen; Pan, Taohong

doi:10.1080/15325008.2020.1732500

Cited by 1 publication

(1 citation statement)

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“…Among these types of PMSM, the PMASynRM has attracted a huge number of investigators to study the characteristics [6][7][8][9], apply optimization processes [10][11][12][13], and perform enhancement for different applications such as electric vehicular systems [4,[14][15][16]. Therefore, a large number of studies are devoted to introducing new branches of structural design for PMSM [4,15,[17][18][19][20][21][22]. A novel dual rotor PMASynRM is introduced in [4] in which toroidal winding is applied to fully utilize electromagnetic torque (PM torque and reluctance torque).…”

Section: Introductionmentioning

confidence: 99%

On the Optimal Selection of Flux Barrier Reconfiguration for a Five-Phase Permanent Magnet Assisted Synchronous Reluctance Machine for Low-Torque Ripple Application

2021

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This paper aims to investigate the reconfigurations of rotor flux barriers for a five-phase Permanent Magnet Assisted Synchronous Reluctance Machine (PMASynRM). To precisely study the performance of the proposed configurations, a conventional PMASynRM with double-layer flux barriers is included in the study. Since the novel rotor schemes consume the same amount of rare-earth magnets, steel sheet materials, and copper wire, resulting in no extra manufacturing costs, the optimal reconfiguration should be determined, providing developed electromagnetic characteristics. Thus, all the proposed models are designed and analyzed under the same condition. The Lumped Parameter Model (LPM) is exported to the Finite Element Method (FEM) for precise analysis to reach developed torque and lower values of torque ripple. Based on the FEM results the model presenting the lowest torque fluctuations is selected as the optimal model and dynamically investigated. According to the results, in comparison with the conventional model, the introduced rotor designs provide a much lower value of torque fluctuations with a desirable amount of electromagnetic torque and power. In addition, the optimal model presents high values of power factor and efficiency, making it a vital alternative for low-torque ripple high-speed operations with no extra cost to the implementation process.

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