Comparison of Mechanical Vibration Between a Double-Stator Switched Reluctance Machine and a Conventional Switched Reluctance Machine

Isfahani, Arash Hassanpour; Fahimi, Babak

doi:10.1109/tmag.2013.2286569

Cited by 82 publications

(40 citation statements)

References 14 publications

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“…[1] [2]. The literature review has revealed that about 40% of electrical machines [induction machine, permanent magnet machine, switched reluctance machine (SRM)] are used for automotive applications and the SRMs are attracting increasing interest owning to the merits such as no permanent magnets and hence low cost, simple and robust rotor structure [2] [3].…”

Section: Introductionmentioning

confidence: 99%

Influence of Conduction Angles on Single-Layer Switched Reluctance Machines

Jewell

et al. 2016

IEEE Trans. Magn.

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Abstract-This paper investigates the influence of conduction angles on the performances of two 3-phase 12-slot/8-pole short pitched switched reluctance machines (SRMs): single layer SRM with conventional winding (SL-CSRM), and single layer SRM with mutually coupled winding (SL-MCSRM). Both unipolar and bipolar excitations are employed for the SRMs with different conduction angles such as unipolar 120° elec., unipolar 180° elec., bipolar 180° elec., bipolar 240° elec., and bipolar 360° elec. Their flux distributions, self-and mutual-flux linkages and inductances are analyzed, and followed by a performance comparison in terms of on-load torque, average torque, torque ripple, using two-dimensional finite element method (2D FEM). Copper loss, iron loss and machine efficiency have also been investigated with different phase currents and rotor speeds. The predicted results show that the conduction angle of unipolar 120° elec. is the best excitation approach for SL-CSRM at low current and also modest speed, as its double layer counterpart. However, at high current, the higher average torque is achieved by a conduction angle of unipolar 180° elec. For SL-MCSRM, bipolar 180° elec. conduction is the most appropriate excitation method to generate a higher average torque but lower torque ripple than others. The lower iron loss is achieved by unipolar excitation, and the SLCSRM with unipolar 120° elec. conduction produces the highest efficiency than others at . In addition, the performances of single layer machines have been compared with the established double layer SRMs with conventional and mutually-coupled windings. The prototype SRMs, for both SL-CSRM and SL-MCSRM, have been built and tested to validate the predictions.

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Section: Introductionmentioning

confidence: 99%

Influence of Conduction Angles on Single-Layer Switched Reluctance Machines

Jewell

et al. 2016

IEEE Trans. Magn.

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“…However, because of their double-saliency structure, vibration and noise are the inherent issues caused by normal force fluctuations during phase current excitations [4], [5], which pose a drawback for the motors in noise sensitive applications. In these machines, the attraction force can be divided into tangential and radial components relative to the rotor.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Skewing Effects on the Vibration Reduction of Three-Phase Switched Reluctance Motors

et al. 2015

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Switched reluctance motors (SRMs) are gaining in popularity because of their robustness, cheapness and excellent highspeed characteristics. However, they are known to cause vibration and noise primarily due to the radial pulsating force resulting from their double-saliency structure. This paper investigates the effect of skewing the stator or/and rotor on the vibration reduction of the three-phase SRMs by developing four 12/8-pole SRMs including a conventional SRM, a skewed rotor-SRM (SR-SRM), a skewed stator-SRM (SS-SRM), and a skewed stator and rotor-SRM (SSR-SRM). The radial force distributed on the stator yoke under different skewing angles is extensively studied by the finite element method (FEM) and experimental tests on the four prototypes. The inductance and torque characteristics of the four motors are also compared and a control strategy by modulating the turn-on and turn-off angles for SR-SRM and SS-SRM are also presented. Furthermore, experimental results have validated the numerical models and the effectiveness of the skewing in reducing the motor vibration. Test results also suggest that skewing the stator is more effective than skewing the rotor in SRMs.

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“…Hence, it is more cost effective. Compared to conventional switched reluctance machines (SRMs), DSSRM has a potential of lower acoustic noise, lower vibration and higher utilization ratio of the space available [2], [3]. In order to increase power density in a conventional SRM, relatively smaller air gap is required, which will force the machine into a highly saturated mode.…”

Section: Introductionmentioning

confidence: 99%

Thermal Modeling and Analysis of a Double-Stator Switched Reluctance Motor

Arbab¹,

Wang

Lin

et al. 2015

IEEE Trans. Energy Convers.

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In this paper, thermal modeling and analysis of a 10 kW double-stator switched reluctance machine (DSSRM) is presented. Thermal management is an essential step of the machine design, since overheated windings and cores might destroy the insulation and lead to failure of the machine. A three-dimensional (3-D) finite-element method (FEM) has been used to numerically calculate the temperature distribution in different parts of the machine. Furthermore, to include the use of water as coolant, computational fluid dynamics (CFD) has been utilized. Thermal performance of the prototype is then analyzed at various load conditions. A 10 kW prototype of the DSSRM has been built and the results have been experimentally verified.

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Comparison of Mechanical Vibration Between a Double-Stator Switched Reluctance Machine and a Conventional Switched Reluctance Machine

Cited by 82 publications

References 14 publications

Influence of Conduction Angles on Single-Layer Switched Reluctance Machines

Influence of Conduction Angles on Single-Layer Switched Reluctance Machines

Investigation of Skewing Effects on the Vibration Reduction of Three-Phase Switched Reluctance Motors

Thermal Modeling and Analysis of a Double-Stator Switched Reluctance Motor

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