Design and Optimization of Soft Magnetic Composite Machines With Finite Element Methods

Cros, J.; Viarouge, P.; Kakhki, Mehdi Taghizadeh

doi:10.1109/tmag.2011.2157113

Cited by 27 publications

(17 citation statements)

References 16 publications

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“…26,27 The prosecution of the activity research would bring in the near future to the realization of prototypes or parts of prototypes. 28 As final considerations, some comments regarding the costs are here presented. Considering as reference the basic I.I.P.C.…”

Section: Discussionmentioning

confidence: 99%

New Soft Magnetic Composites for electromagnetic applications with improved mechanical properties

2016

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The chance to move from 2D to 3D approach in the design of the electrical machines is made possible by the availability of Soft Magnetic Composites (SMC), iron based powders, insulated and pressed to realize shapes otherwise impossible with the traditional lamination sheets technology. Some commercial products are available on the market as “ready to press” powders, which presents good magnetic and energetic properties but are sometimes weak under the mechanical point of view; other products aim at improving this aspect but with considerable process complications and relative cost. The experience of the Authors in the realization of bonded magnets with the adoption of selected organic resins has been partly transferred in the research field of the SMC in order to investigate the possibility to obtain good mechanical properties maintaining the magnetic characteristics of the Insulated Iron Powder Compounds (I.I.P.C.) taken as reference. The paper presents the activity that has been carried out in the realization of SMC mixing iron powders and phenolic resin, in different weight percentages and mold pressures. The obtained results are considered satisfactory under the point of view of the compromise between magnetic and mechanical properties, considering also that the required productive process is simpler. The comparison of the obtained results with those related to commercial products encourages to carry on the research, also because of the reduced cost of the proposed SMC at parity (or better) performance.

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Section: Discussionmentioning

confidence: 99%

New Soft Magnetic Composites for electromagnetic applications with improved mechanical properties

2016

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“…In this work, population size is set to Npop=5. (2). Fitness of the each individual are evaluated using Finite Element Method (FEM).…”

Section: B Global Search Methodsmentioning

confidence: 99%

“…There are two approaches in the shape optimization, namely, parameter and topology optimizations. In the parameter optimization, device shapes are expressed in terms of geometric parameters and optimization is conducted by changing them [1]- [2]. On the other hand, the topology optimization seeks for the optimum solutions directly varying the material shapes without geometric parameters [3]- [5].…”

Section: Introductionmentioning

confidence: 99%

Topology Optimization Method Based on On–Off Method and Level Set Approach

2014

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This paper proposes a two-step method for topology optimization, in which after global search is performed by the on-off method, and then local search is carried out by the level set approach. The genetic and gradient-based algorithms are employed for the former and latter optimizations, respectively. The present method is applied to two numerical examples; topology optimizations of a magnetic shield system and IPM-motor. It is shown that the present method can find solutions with better performances in comparison with the conventional on-off method.

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“…In the literature there are a number of research results related to the use of SMC materials for the motor core's construction [5,[11][12][13][14]. Available works can be divided into the following groups: operating parameters of high speed motors [11]; optimization of the motor core [12]; design of motors having complex 3-D cores or core manufactured by separate elements [13,14]. This paper describes the results of research, both measurement, technology and simulation, carried out on the mass produced LSSR (Line-Started Synchronous Reluctance) motor of a nominal power of 120 W. …”

Section: Introductionmentioning

confidence: 99%

Comparison of the fractional power motor with cores made of various magnetic materials

et al. 2017

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Abstract:The optimization of the motor cores, coupled with new core shapes as well as powering the motor at high frequency are the primary reasons for the use of new materials. The utilization of new materials, like SMC (soft magnetic composite), reduce the core loss and/or provide quasi-isotropic core's properties in any magnetization direction. Moreover, the use of SMC materials allows for avoiding degradation of the material portions, resulting from punching process, thereby preventing the deterioration of operating parameters of the motor. The authors examine the impact of technological parameters on the properties of a new type of SMC material and analyze the possibility of its use as the core of the fractional power motor. The result of the work is an indication of the shape of the rotor core made of a new SMC material to achieve operational parameters similar to those that have a motor with a core made of laminations.

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Design and Optimization of Soft Magnetic Composite Machines With Finite Element Methods

Cited by 27 publications

References 16 publications

New Soft Magnetic Composites for electromagnetic applications with improved mechanical properties

New Soft Magnetic Composites for electromagnetic applications with improved mechanical properties

Topology Optimization Method Based on On–Off Method and Level Set Approach

Comparison of the fractional power motor with cores made of various magnetic materials

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