Impact of Topology Optimization Problem Setup on Switched Reluctance Machine Design

Manninen, Aino; Keränen, Janne; Pippuri-Mäkeläinen, Jenni; Riipinen, Tuomas; Metsä-Kortelainen, Sini; Lindroos, Tomi

doi:10.1109/compumag45669.2019.9032826

Cited by 7 publications

(10 citation statements)

References 7 publications

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“…The level set method is a gradient-based TO method. It gives a more feasible solution but with a slower convergence as compared to the material-density-based method [197]. The design space and boundaries are represented with a level set continuous function [198].…”

Section: Topology Optimization Of Srmsmentioning

confidence: 99%

“…The level set method was used in [197] to increase the torque to mass ratio of an 8/6 SRM. The TO applied to the rotor region in this study was able to increase the torque density of the motor by 7.75 %.…”

Section: Xy Xy Xymentioning

confidence: 99%

“…Another topology optimization technique called Material-density-based methods or method of moving asymptotes was used for SRMs design [200]. Materialdensity-based methods have faster convergence than the level set method [197], [201]. The objective function is minimized by defining the material type (air or ferromagnetic material) based on the value of the density function i  of the i th element as follows:…”

Section: Xy Xy Xymentioning

confidence: 99%

“…The magnetic reluctivity of the i th element is then defined as follows [197], [202]: p was suggested to be equal to 3 in [202] to ensure good convergence to the white and black elements with a small number of gray elements.…”

Section: Xy Xy Xymentioning

confidence: 99%

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Geometry and Topology Optimization of Switched Reluctance Machines: A Review

Abdalmagid

Sayed²,

Bakr

et al. 2022

IEEE Access

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Switched reluctance machines (SRMs) have recently attracted more interest in many applications due to the volatile prices of rare-earth permanent magnets (PMs) used in permanent magnet synchronous machines (PMSMs). They also have rugged construction and can operate at high speeds and high temperatures. However, acoustic noise and high torque ripples, in addition to the relatively low torque density, present significant challenges. Geometry and topology optimization are applied to overcome these challenges and enable SRMs to compete with PMSMs. Key geometric design parameters are optimized to minimize various objective functions within geometry optimization. On the other hand, the material distribution in a particular design space within the machine domain may be optimized using topology optimization. We discuss how these techniques are applied to optimize the geometries and topologies of SRMs to enhance machine performance. As optimizing the machine geometry and material distribution at the design phase is of substantial significance, this work offers a comprehensive literature review on the current state of the art and the possible trends in the optimization techniques of SRMs. The paper also reviews different configurations of SRMs and stochastic and deterministic optimization techniques utilized in optimizing different configurations of the machine.

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Section: Topology Optimization Of Srmsmentioning

confidence: 99%

Section: Xy Xy Xymentioning

confidence: 99%

Section: Xy Xy Xymentioning

confidence: 99%

Section: Xy Xy Xymentioning

confidence: 99%

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Geometry and Topology Optimization of Switched Reluctance Machines: A Review

Abdalmagid

Sayed²,

Bakr

et al. 2022

IEEE Access

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show abstract

“…With this design, the reduction in torque ripple was analyzed by FEA simulation and then validated experimentally, giving approximately 45% reduced torque ripple [98]. AM also enables application of topology optimization on machine design, Application of topology optimization on SRM design [99,100] and subsequent analysis, shows achievement of optimization goals i.e., high average torque and low torque ripple with low mass.…”

Section: Switched Reluctance Machines (Srm)mentioning

confidence: 99%

A Review on Additive Manufacturing Possibilities for Electrical Machines

et al. 2021

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This paper presents current research trends and prospects of utilizing additive manufacturing (AM) techniques to manufacture electrical machines. Modern-day machine applications require extraordinary performance parameters such as high power-density, integrated functionalities, improved thermal, mechanical & electromagnetic properties. AM offers a higher degree of design flexibility to achieve these performance parameters, which is impossible to realize through conventional manufacturing techniques. AM has a lot to offer in every aspect of machine fabrication, such that from size/weight reduction to the realization of complex geometric designs. However, some practical limitations of existing AM techniques restrict their utilization in large scale production industry. The introduction of three-dimensional asymmetry in machine design is an aspect that can be exploited most with the prevalent level of research in AM. In order to take one step further towards the enablement of large-scale production of AM-built electrical machines, this paper also discusses some machine types which can best utilize existing developments in the field of AM.

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