A FEM&lt;sup&gt;1&lt;/sup&gt; investigation on the Synchronous Reluctance Machine rotor geometry with just one flux barrier as a guide toward the optimal barrier's shape

Moghaddam, Reza Rajabi; Magnussen, Freddy; Sadarangani, Chandur

doi:10.1109/eurcon.2009.5167704

Cited by 10 publications

(2 citation statements)

References 19 publications

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“…In the third category, the use of multi-objective optimization algorithms for the parametric design of motors with several barriers for optimal design has been performed [10]- [11]. Different methods have been suggested in the literature for rotor design; for example, designing based on magnetic equivalent circuit [12]- [15] mathematical relationships and physical concepts [16] and [17], and most recently, combining these relationships according to sensitivity analysis of the parameters involved [13], [18] and [19]. Rotor design parameters are complicated and timeconsuming.…”

Section: Introductionmentioning

confidence: 99%

Analytical Method to Optimum design of Synchronous Reluctance Motor for Electric Scooter Application

Salehinia

Afjei²,

Hekmati

2021

Scientia Iranica

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In recent years, synchronous reluctance motor (SynRM) has attracted the attention of researchers and well-known companies have been involved in designing and manufacturing electric motors due to its simplicity. The current study aimed to provide a comprehensive approach to design a series of SynRMs using both combined methods and finite element analysis to achieve an algorithm which is based on the similarity between flux lines and the shape of flux barriers to achieve both maximum torque and minimum torque ripple. In this paper, a SynRM is designed for a specific electric vehicle. Consequently, study cases with a different number of both flux barriers and poles, are analyzed and optimized in each case. Finally, the optimal specifications of the motors are compared in different cases and the best one is selected. Accordingly, the design parameters are identified and optimized through the Taguchi method and then, the obtained results are evaluated through finite element analysis. To achieve both maximum torque and minimum torque ripple in a range of power between 150 to 750 watts, three different number of poles with a constant number of slots (per pole per phase) at the same size for all the described motors are considered. The validity of the proposed method is confirmed through the experimental test results.

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Section: Introductionmentioning

confidence: 99%

Analytical Method to Optimum design of Synchronous Reluctance Motor for Electric Scooter Application

Salehinia

Afjei²,

Hekmati

2021

Scientia Iranica

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“…The development of powerful computers and commercial finite element (FE) software has assisted the optimization of SynRM machine so as to achieve high average torque and low torque ripple (Vagati et al, 2000). Single-layer flux-barrier has been optimized by finite element method (FEM) and some rules are also derived to have high performance (Moghaddam et al, 2009). However, for the more than one layer flux-barrier, the number of flux-barrier layers for axially laminated rotor structure not less than ten has the highest reluctance torque (Murakami et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Torque ripple reduction of synchronous reluctance machines

Wang

Ombach

Koch

et al. 2015

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose – The purpose of this paper is to investigate the influence of stator and rotor pole number combinations together with the flux-barrier layers number on the performance of synchronous reluctance machine with emphasis on output torque capability and torque ripple. Design/methodology/approach – AC synchronous reluctance machine (SynRM) or permanent magnet assisted SynRM presently receives a great deal of interest, since there is less or even no rare-earth permanent magnet in the rotor. Most of SynRM machines employ a stator that is originally designed for a standard squirrel cage induction motor for a similar output rating and application, or the SynRM machine with 24-slot, four-pole are often directly chosen for investigation in most of the available literature. Therefore, it is necessary to investigate the influence of stator and rotor pole number combinations together with the flux-barrier layers number on the performance of SynRM machine with emphasis on output torque capability and torque ripple. Findings – The average torque decreases with the increase of the pole numbers but remain almost constant when employing different stator slot numbers but with the same pole number. In addition, the torque ripple decreases significantly with the increase of the stator slot number. The machine with double-layer flux-barrier in the rotor has the biggest average torque, while the machines with three- and four-layer flux-barrier in the rotor have almost the same average torque but their value is slightly smaller than that of machine with double-layer flux-barrier. However, the machine with three-layer flux-barrier has the lowest torque ripple but the highest torque ripple exists in the machine with double-layer flux-barrier. Research limitations/implications – The purely sinusoidal currents are applied in this analysis and the effects of harmonics in the current on torque ripple are not considered in this application. Originality/value – This paper has analyzed the torque ripple and average torque of SynRMs with considering slot/pole number combinations together with the flux-barrier number.

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Finite Element Analysis and Design Methodology for High-Efficiency Synchronous Reluctance Motors

Mohanarajah

Rizk

Nagrial

et al. 2018

Electric Power Components and Systems

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A FEM<sup>1</sup> investigation on the Synchronous Reluctance Machine rotor geometry with just one flux barrier as a guide toward the optimal barrier's shape

Cited by 10 publications

References 19 publications

Analytical Method to Optimum design of Synchronous Reluctance Motor for Electric Scooter Application

Analytical Method to Optimum design of Synchronous Reluctance Motor for Electric Scooter Application

Torque ripple reduction of synchronous reluctance machines

Finite Element Analysis and Design Methodology for High-Efficiency Synchronous Reluctance Motors

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