Incorporating Lamination Processing and Component Manufacturing in Electrical Machine Design Tools

Arshad, W.M.; Ryckebusch, T.; Magnussen, Freddy; Lendenmann, H.; Eriksson, B.; Soulard, Juliette; Malmros, B.

doi:10.1109/07ias.2007.21

Cited by 75 publications

(33 citation statements)

References 10 publications

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“…However, such assumption reveals itself insufficient as the manufacturing of an electrical machine, from the cutting of laminations till the final magnetic core shape, requires several industrial processes that might significantly impact the magnetic properties. In fact, these processes may introduce some residual stresses that have an impact on the magnetic behavior law and iron losses of the considered material [30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Stochastic Modeling of Soft Magnetic Properties of Electrical Steels: Application to Stators of Electrical Machines

2012

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To take account of the uncertainties introduced on the soft magnetic materials properties (magnetic behavior law, iron losses) during the manufacturing process, the present work deals with the stochastic modeling of the magnetic behavior law B-H and iron losses of claw pole stator generator. Twenty eight (28) samples of slinky stator (SS) coming from the same production chain have been investigated. The used approaches are similar to those used in mechanics. The accuracy of existing anhysteretic models has been tested first using cross validation techniques. The well known iron loss separation model has been implemented to take into account the variability of the losses. Then, the Multivariate Gaussian distribution is chosen to model the variability and dependencies between identified parameters, for both behavior law and iron loss models. The developed stochastic models allow predicting a 98% confidence interval for the considered samples.

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Section: Introductionmentioning

confidence: 99%

Stochastic Modeling of Soft Magnetic Properties of Electrical Steels: Application to Stators of Electrical Machines

2012

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“…However, the material minor loop relative permeabilites reported in Section VII were measured under tangential flux orientation. The impair of magnetic properties due to cutting [19], [20], may result in a subsequent overestimation of the modeled magnetic flux densities. The consequence would be an incorrect loss separation and a subsequent underestimation of iron loss coefficients.…”

Section: A Model Validitymentioning

confidence: 99%

High-Frequency Characterization of Losses in Fully Assembled Stators of Slotless PM Motors

Millinger

Wallmark

Soulard

2018

IEEE Trans. on Ind. Applicat.

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PostprintThis is the accepted version of a paper published in IEEE transactions on industry applications. This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination. IEEE transactions on industry applicationsAccess to the published version may require subscription. N.B. When citing this work, cite the original published paper. © © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Abstract-The recent emerge of wide band-gap (WBG) power transistors enables higher switching frequencies in electrical motor drives. Their full utilization from a system point of view requires quantification of the corresponding time-harmonic motor losses. As an initial step, this paper presents a unique study of stator losses for three different commercially available non-oriented silicon-iron (SiFe) steel grades (with lamination thicknesses 0.1, 0.2 and 0.3 mm). The investigations cover a wide frequency range (10-100 kHz) at different levels of DC-bias (up to 1.6 T). Iron losses are identified from measurements on fully assembled stators, deploying a novel technique. By utilizing fully assembled stators, no additional samples are required. Manufacturing influence is inherently incorporated. Results show that measured iron losses are twice as high at 10 kHz compared to Epstein test results, which emphasizes the need to incorporate manufacturing influence on iron losses at high frequencies. The level of DC-bias is also observed to have a significant impact on iron losses (up to 30 %). Even though thinner laminations are known for reducing iron losses, the reduction is much lower than anticipated in the studied frequency range due to skin effect. Using 0.1 mm lamination gauge instead of 0.3 mm reduces losses by 50 % at 10 kHz, while the same substitution at 100 kHz only reduces losses by 30 %. Future work includes loss separation in complete converter-fed machines.

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“…The results are compared to a non-welded, taped core and the outcome is that the magnetic properties of the material are significantly degraded and the total specific iron losses increased. In [16], the authors investigate the welding effect on a stator core topology. As reference, a taped stator core is used and the studied core has 12 welding seams.…”

Section: Literature Reviewmentioning

confidence: 99%

Quantifying Effects of Cutting and Welding on Magnetic Properties of Electrical Steels

Bourchas

Stening

Soulard

et al. 2017

IEEE Trans. on Ind. Applicat.

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Incorporating Lamination Processing and Component Manufacturing in Electrical Machine Design Tools

Cited by 75 publications

References 10 publications

Stochastic Modeling of Soft Magnetic Properties of Electrical Steels: Application to Stators of Electrical Machines

Stochastic Modeling of Soft Magnetic Properties of Electrical Steels: Application to Stators of Electrical Machines

High-Frequency Characterization of Losses in Fully Assembled Stators of Slotless PM Motors

Quantifying Effects of Cutting and Welding on Magnetic Properties of Electrical Steels

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