Influence of number of turns per coil in fractional-slot PM brushless machines

Al-Habshi, S. M.; Jamil, Mohd Luqman Mohd; Othman, Mohd Fairuz Iskandar; Jidin, Auzani; Karim, Kasrul Abdul; Zolkapli, Z. Z.

doi:10.1109/cencon.2014.6967492

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…In reference [4], it proposes a method for reducing the maximum current of switched reluctance motor by increasing the number of turns. In reference [5], it can be seen that a significant reduction of unbalanced magnetic force is possibly achieved by employing uneven number of turns per coil. In reference [6], it presents a method for selecting the optimum number of turns per phase winding of the switched reluctance motor with a given magnetic configuration and specified operating conditions in terms of the output power and speed.…”

Section: Introductionmentioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Qiu,

Zhang,

Yang

et al. 2020

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The current passed by the stator coil of the permanent magnet synchronous motor (PMSM) provides rotating magnetic field, and the number of turns will directly affect the performance of PMSM. In order to analyze its influence on the PMSM performance, a 3 kW, 1500 r/ min PMSM is taken as an example, and the 2D transient electromagnetic field model is established. The correctness of the model is verified by comparing the experimental data and calculated data. Firstly, the finite element method (FEM) is used to calculate the electromagnetic field of the PMSM. The performance parameters of the PMSM are obtained. On this basis, the influence of the number of turns on PMSM performance is quantitatively analyzed, including current, no-load back electromotive force (EMF), overload capacity and torque. In addition, the influence of the number of turns on eddy current loss is further studied, and its variation rule is obtained, and the variation mechanism of eddy current loss is revealed. Finally, the temperature field of the PMSM is analyzed by the coupling method of electromagnetic field and temperature field, and the temperature rise law of PMSM is obtained. The analysis of this paper provides reference and practical value for the optimization design of PMSM.

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Section: Introductionmentioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Qiu,

Zhang,

Yang

et al. 2020

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Performance of Fractional-Slot Winding PM Machines due to Un-even Coil Turns and Asymmetric Design of Stator Teeth

Jamil¹,

Al-Habshi²,

Othman³

et al. 2015

IJPEDS

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PM machines in which slot number and pole number combination differs by one have to be configured with asymmetric winding pattern in order to maximize it back-emf performance. However, this asymmetric winding configuration inherently results an unwanted Unabalanced Magnetic Force (UMF). Investigations of electromagnetic performance of fractional-slot asymmetric winding PM machines using 2-D Finite-Element Analysis are presented. The investigations are mainly driven by the effort of minimizing the UMF. By employing techniques such as non-uniform number of coil turns in every tooth and asymmetric design of stator tooth, the UMF are expected can be minimized. The investigations show that the radial component of UMF has greater effect than the tangential component on the UMF itself. In all proposed techniques, a slight reduction of machine torque performance is inevitable.

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Influence of number of turns per coil in fractional-slot PM brushless machines

Cited by 2 publications

References 15 publications

Bulletin of the Polish Academy of Sciences: Technical Sciences

Bulletin of the Polish Academy of Sciences: Technical Sciences

Performance of Fractional-Slot Winding PM Machines due to Un-even Coil Turns and Asymmetric Design of Stator Teeth

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