Novel High-Performance SynRM Design Method: An Easy Approach for A Complicated Rotor Topology

Moghaddam, Reza-Rajabi; Gyllensten, Freddy

doi:10.1109/tie.2013.2271601

Cited by 177 publications

(121 citation statements)

References 38 publications

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“…Different rotor flux barrier parametrizations have been presented in literature [17], [18]. All of them show that the flux barrier and end barrier geometry play a key role on the torque maximization and torque ripple reduction [19].…”

Section: B Rotor Parametrizationmentioning

confidence: 99%

Structural design optimization of a high speed synchronous reluctance machine

Nardo

Calzo

Galea

et al. 2016

2016 XXII International Conference on Electrical Machines (ICEM)

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. Abstract-Synchronous reluctance machines, including the permanent magnet assisted variants are competitive motor topologies if the application requires high efficiency and a cost effective solution with a high flux weakening capability. However, increasing speeds incur challenging design and development decisions, in order to find an optimal solution between the machine performance and its structural integrity. In this paper, a comprehensive design procedure for such machines is presented, where a 5kW, 80000 rpm synchronous reluctance machine is considered. The proposed strategy consists of a two-step procedure in which the electromagnetic and structural designs have been properly decoupled dividing the design space in two subsets. Each subset mainly affects the electromagnetic or the structural performances. Several structural design optimizations have been performed with the aim of finding the optimal trade-off between the rotor geometrical complexity (i.e. computational time) and the electromagnetic performance. The results shown in this paper validate the proposed design strategy which can be used as general guidelines on the structural design of synchronous reluctance machines.

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Section: B Rotor Parametrizationmentioning

confidence: 99%

Structural design optimization of a high speed synchronous reluctance machine

Nardo

Calzo

Galea

et al. 2016

2016 XXII International Conference on Electrical Machines (ICEM)

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“…The angular positions at airgap [3,[5][6][7][8][9] constitute the barrier limb locations for each rotor pole. The contour map for the influence of variation of ∆δ 1 and ∆δ 2 with ∆δ 3 =8.5 0 on average torque and torque ripple percentage is shown in Fig.…”

Section: Influence Of Angular Positions At Airgapmentioning

confidence: 99%

“…The parameters comprises of height of the barriers [3,[5][6][7][8][9][10], length of the barriers [5,10], angular positions at air gap [3,[5][6][7][8][9], barrier tip angle [11,12] and iron rib thickness [3,13]. Besides the above mentioned parameters, the effect of airgap and effect of skewing [3,12] of rotor is analysed.…”

Section: Introductionmentioning

confidence: 99%

Effect of Geometrical Parameters on Optimal Design of Synchronous Reluctance Motor

Nagarajan¹,

Kamaraj²,

Balaji³

et al. 2016

Journal of Magnetics

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Torque ripple minimization without decrease in average torque is a vital attribute in the design of Synchronous Reluctance (SynRel) motor. As the design of SynRel motor is an arduous task, which encompasses many design variables, this work first analyses the significance of the effect of varying the geometrical parameters on average torque and torque ripple and then proposes an extensive optimization procedure to obtain configurations with improved average torque and minimized torque ripple. A hardware prototype is fabricated and tested. The Finite Element Analysis (FEA) software tool used for validating the test results is MagNet 7.6.0.8. Multi Objective Particle Swarm Optimization (MOPSO) is used to determine the various designs meeting the requirements of reduced torque ripple and improved torque performance. The results indicate the efficacy of the proposed methodology and substantiate the utilization of MOPSO as a significant tool for solving design problems related to SynRel motor.

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“…Therefore, a renewed interest in reluctance machines has emerged, and in particular in the Synchronous Reluctance Machine (SynRM) from a design point of view as in [5,7,10,11,14,15] and a control point of view as in [27,29,32]. It has been reported that the SynRM delivers competitive results in comparison with the Induction Machine (IM) in [12].…”

Section: Introductionmentioning

confidence: 99%

“…For instance, in [3,4,13,14,17], the position and end points of the flux barriers are studied in order to minimize the torque ripple. Conversely, in [2,18], asymmetrical flux barriers were introduced where significant torque ripple reduction has been documented.…”

Section: Introductionmentioning

confidence: 99%

Torque Ripple Reduction in a Synrm at a Constant Average Torque by Means of Current Harmonics Injection

Yammine¹,

Hénaux²,

Fadel³

et al. 2018

PIER C

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Abstract-This paper studies the impact of current harmonics on the synchronous reluctance machine's average torque and torque ripple. The electromagnetic model of a general m-phase synchronous reluctance machine which integrates the inductance and current harmonics is developed. This model shows that there exist two mechanisms that generate an average torque with a non-zero average value: the proper contribution of the current harmonics and the interaction between them. This model is then used in the case of a 2-phase synchronous reluctance machine with a common transversally laminated anisotropic rotor. This machine design shows negligible inductance harmonics with respect to its fundamental value. Therefore, it has been found that the interaction between the 3rd and 5th current harmonics generates a torque equivalent to the torque generated by the fundamental current component. A locus of the current harmonic components that deliver a constant torque is determined. Furthermore, we have found that, on this locus, the machine torque ripple decreases significantly. Experimental data validate the developed theoretical work and show that at the same torque, the torque ripple is reduced from 20% to 4%.

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Novel High-Performance SynRM Design Method: An Easy Approach for A Complicated Rotor Topology

Cited by 177 publications

References 38 publications

Structural design optimization of a high speed synchronous reluctance machine

Structural design optimization of a high speed synchronous reluctance machine

Effect of Geometrical Parameters on Optimal Design of Synchronous Reluctance Motor

Torque Ripple Reduction in a Synrm at a Constant Average Torque by Means of Current Harmonics Injection

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