Influences of Material Degradation Due to Laser Cutting on the Operating Behavior of PMSM Using a Continuous Local Material Model

Elfgen, Silas; Steentjes, Simon; Böhmer, Stefan; Franck, David; Hameyer, Kay

doi:10.1109/tia.2017.2665338

Cited by 33 publications

(26 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In literature, the variations in the material properties and core loss due to the manufacturing process on the stator core are investigated in [3][4][5][6][7][8][9][10][11][12][13]. However, there is a very small amount of literature that considers the effect of machining processes on the actual machine performance.…”

Section: Materials and Manufacturing Effects On Machine Designmentioning

confidence: 99%

“…However, there is a very small amount of literature that considers the effect of machining processes on the actual machine performance. In [8], the influence of material degradation on the performance of PM machine due to cutting has been studied. In this work, a single sheet lamination, with different amount of cuts, has been used for evaluating the magnetic properties which then is used to determine the operating behaviour of the PM machine.…”

Section: Materials and Manufacturing Effects On Machine Designmentioning

confidence: 99%

“…It is well known [3][4][5][6][7][8][9][10][11][12][13] that these manufacturing processes all have a significant and permanent effect on the magnetic properties of the material, especially on the BH curve and the specific core loss properties of the material. This implies that the materials being used for the actual machine no longer reflect the material properties given by their original data sheets.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Considerations on the Effects That Core Material Machining Has on an Electrical Machine's Performance

Al-Timimy

Vakil

Degano

et al. 2018

IEEE Trans. Energy Convers.

View full text Add to dashboard Cite

Abstract--An often-overlooked aspect during the development process of electrical machines, is the validity and accuracy of the machine material properties being used at the design stage. Designers usually consider the data provided by the materials supplier, which is measured on material in an unprocessed state. However, the fact that the machining processes required to produce the finished product (e.g. the stator core) can permanently vary the material properties is very often neglected. This paper therefore deals with and investigates the effects that such processes can have on the overall machine performance. To do this, three sets of material data, based on 1) the materials suppliers' data, 2) materials data based on conventional characterization methods and 3) materials data based on test samples that include the manufacturing processes, are used to develop three versions of the same baseline machine. The results of these three machines are then compared and the resulting variations of the machine's performance presented and described.The chosen baseline machine is a high performance and relatively high speed, aerospace, electrical machine. Special attention is focused on the efficiency maps of the machine as this aspect is highly dependent on the material properties that are the most sensitive to manufacturing processes such as the material's anhysteretic BH curve and its specific core loss.Index Terms--magnetic materials, manufacturing processes, performance analysis, permanent magnet motors.

show abstract

Section: Materials and Manufacturing Effects On Machine Designmentioning

confidence: 99%

Section: Materials and Manufacturing Effects On Machine Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Considerations on the Effects That Core Material Machining Has on an Electrical Machine's Performance

Al-Timimy

Vakil

Degano

et al. 2018

IEEE Trans. Energy Convers.

View full text Add to dashboard Cite

show abstract

“…This knowledge is essential to improve the validity range of material models for the FE simulation of electrical machines. In [8] it has been shown that the incorporation of a phenomenological continuous local cut edge model which enables the consideration of the permeability decrease as a function of the distance to the cut edge, can significantly increase the accuracy of FE simulations. The insufficient understanding of the interrelation of the physical effects are however, still a limiting factor in this context.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the interdependency of mechanical cutting and magnetic anisotropy on the magnetic properties of FeSi electrical steel

Leuning¹

2019

ELECTROTECHNICAL REVIEW

View full text Add to dashboard Cite

Due to present-day challenges for the improvement of the operating characteristics of rotating electrical machines, the core material is regarded as increasingly important. Non-oriented (NO) electrical steel sheets are conventionally used for the construction of magnetic cores of rotating electrical machines. The most appropriate choice of material and machine design is based on standardized material data obtained from Epstein frames or single sheet testers. Both, low losses as well as good magnetizability in any spatial direction of the sheet plane are requested. Despite their name, NO electrical steels do show a magnetic anisotropy. A significant increase of loss and decrease of permeability can additionally be induced by mechanical cutting processes to shape the magnetic circuit. Magnetic anisotropy and induced mechanical stress can affect the local iron-loss distribution, magnetizability, acoustic behavior and therefore, have to be considered in numerical simulations of electrical machines. In this paper, the interdependency of the magnetic anisotropy with the effect of cutting is studied in order to improve the necessary understanding of the material behavior. Streszczenie. I. W procesie mechanicznego cięcia blchy elektrotechnicznej mogą ulec degradacji podstawowe jej parametry-straty I przenikalność. Indukowane w procesie cięcia naprężenia wpływają na anizotropię I rozkład strumienia. W artykule W artykule analizowany jest wpływ procesu cięcia na właściwości niezorientowanych blach elektrotechnicznych. Wpływ mechanicznego cięcia i anizotropii na właściwości magnetyczne blach elektrotechnicznych SiFe

show abstract

“…The increase of the magnetic losses due to the cutting deterioration can also be modeled with two parameters which depend on the distance to the cut edge. In [8], the important role of this magnetic deterioration is assessed by incorporating such model in finiteelement method (FEM). The efficiency significantly drops when the synchronous machine is driven within the over-speed operation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Punching the Electrical Sheets on Optimal Design of a Permanent Magnet Synchronous Motor

et al. 2018

View full text Add to dashboard Cite

Cutting the electrical steel sheets to form the shape of the stator and the rotor affects the magnetic properties of the sheets. The increase of the magnetic losses as well as the drop of the magnetic permeability can impact on the design of electrical devices. This paper investigates this deterioration effect on the optimal design of the stator of a high-speed permanent magnet synchronous motor. The deterioration due to punching is phenomenologically analyzed based on measurement of strips of steel sheets with various widths on an enlarged Epstein frame. The losses are computed with a Bertotti model whose coefficients depend on the width of the sheets. The optimization of a synchronous machine is then carried out with this magnetic losses model.

show abstract

Influences of Material Degradation Due to Laser Cutting on the Operating Behavior of PMSM Using a Continuous Local Material Model

Cited by 33 publications

References 17 publications

Considerations on the Effects That Core Material Machining Has on an Electrical Machine's Performance

Considerations on the Effects That Core Material Machining Has on an Electrical Machine's Performance

Evaluation of the interdependency of mechanical cutting and magnetic anisotropy on the magnetic properties of FeSi electrical steel

Effect of Punching the Electrical Sheets on Optimal Design of a Permanent Magnet Synchronous Motor

Contact Info

Product

Resources

About