A New Double-Layer Switched Reluctance Motor with a Low Torque Ripple

Vatani, Matin; Mirsalim, Mojtaba; Vaez‐Zadeh, Sadegh

doi:10.1109/iraniancee.2019.8786403

Cited by 13 publications

(3 citation statements)

References 10 publications

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“…SRM is widely used in the field of electric vehicles because of its simple manufacture and durability, but its vibration caused by the torque ripple has been criticized. As shown in Figure 9, a double-layer SRM is proposed in [34] to reduce the torque ripple and realize smooth operation of the machine by optimizing the topology of SRM. Not limited to the double-layer structure, a higher-level SRM machine topology is proposed in [35,36].…”

Section: Novel Machine Topology Optimizationmentioning

confidence: 99%

Overview of the Optimal Design of the Electrically Excited Doubly Salient Variable Reluctance Machine

Zhao

et al. 2021

Energies

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The Electrically Excited Doubly Salient Variable Reluctance Machine (EEDSVRM) is a new type of brushless machine designed according to the principle of air gap reluctance change. There is neither permanent magnet steel nor excitation winding on the rotor. The rotor is made of silicon steel sheets, thus the structure of the variable reluctance machine is very simple. There are many optimization methods for this type of machine optimal design, such as novel machine topology optimization, finite element simulation-based optimization, mathematical analysis-based optimization, intelligent algorithm-based optimization, and multiple fusion-based optimization. Firstly, this article introduces the basic structure and working principle of the EEDSVRM and analyzes both its common regularity and individual difference. Then, the different optimization design methods of EEDSVRM are reviewed, the advantages and disadvantages of the different optimization methods are summarized, and the research interests of the optimization design of variable reluctance machines in the future are prospected.

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Section: Novel Machine Topology Optimizationmentioning

confidence: 99%

Overview of the Optimal Design of the Electrically Excited Doubly Salient Variable Reluctance Machine

Zhao

et al. 2021

Energies

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“…Switched Reluctance Motors (SRMs) have attracted the attention of the industry for more usage in industrial applications [1,2]. Therefore, redesigning SRMs to alleviate their disadvantages as long as keeping or improving their advantages contributes to make them promising candidates for new applications or better operation in conventional utilisation [3].…”

Section: Introductionmentioning

confidence: 99%

Analysis of linear permanent magnet switched reluctance motors with modular and segmental movers

Ghaffarpour

Vatani

Kondelaji

et al. 2023

IET Electric Power Appl

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Here, the authors propose two new Permanent Magnet (PM) embedded linear switched reluctance motors; one is a modular linear hybrid reluctance motor (MLHRM), and the other one is a segmental linear hybrid reluctance motor (SLHRM). Both structures employ PMs between the side teeth of the modules/segments. The main contribution of the PMs is to increase the air‐gap flux density, which results in an enhanced thrust, and decrease the magnetic saturation in iron parts. The magnetic equivalent circuit model is used to demonstrate the positive effect of inserting PMs in the MLHRM and SLHRM compared to their PMless counterparts. The optimal pole number and design procedure are illustrated. The simulation results are obtained in terms of static thrust, flux linkage, flux density distributions, and steady‐state current and thrust. The results show that the proposed MLHRM and SLHRM offer a higher thrust and lower current compared to their PMless form. Also, the PMs decrease the root mean square (RMS) current under the steady‐state performance of the motors, in which a higher thrust is produced with a lower RMS current. Finally, the MLHRM and SLHRM are fabricated and the test results are obtained and compared with the simulations, which illustrate a satisfactory agreement.

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“…Compared to conventional SRM (CSRM), the multi-layer SRM topology, which is presented in [7], has obviously reduced the output torque ripple. Compared to a CSRM, a two-layer SRM in [8] has a greater average torque and a lower torque ripple. Multi-stack SRMs have been demonstrated in [9,10] with the segmental rotor.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Performance Comparison between Segmental and Conventional Switched Reluctance Machines with Boost and Standard Converters

et al. 2022

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This paper presents the comparisons between two types of switched reluctance machines (SRMs) and SRM converters. An SRM with a segmental rotor is compared with a conventional SRM (CSRM), and an SRM converter containing a passive boost circuit is compared with a conventional asymmetric half-bridge (AHB) converter. The segmental SRM has an asymmetric rotor with a segmented structure. The four rotor segments are made of steel laminations. Two segments are misaligned with the other two by 15 degrees. The torque ripple of the SRM with this structure is decreased, and the static torque is increased compared to a conventional SRM. The boost converter comprises a front-end circuit and a conventional AHB converter. The front-end circuit boosts the voltage level. The boosted voltage accelerates the rising and falling progress of the phase current. In this way, the SRM can obtain a greater speed and a smaller torque ripple. The comparison is conducted in simulation and validated through the experimental results. The experiment results have demonstrated that the segmental SRM obtains a maximum 7% torque ripple reduction at a low-speed range, compared to the CSRM. With the boost converter, both the CSRM and the segmental SRM can achieve a lower torque ripple and a higher maximum speed.

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A New Double-Layer Switched Reluctance Motor with a Low Torque Ripple

Cited by 13 publications

References 10 publications

Overview of the Optimal Design of the Electrically Excited Doubly Salient Variable Reluctance Machine

Overview of the Optimal Design of the Electrically Excited Doubly Salient Variable Reluctance Machine

Analysis of linear permanent magnet switched reluctance motors with modular and segmental movers

A Comprehensive Performance Comparison between Segmental and Conventional Switched Reluctance Machines with Boost and Standard Converters

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