Calculation improvement of no-load stray losses in induction motors with experimental validation

On the basis of the known fact that all air gap main flux density variations are enclosed by permeance slot harmonics, only one component of stray losses in rotor (stator) iron is considered in the new classification, instead of 2 components: rotor (stator) pulsation iron losses, and rotor...

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Main Author: Kostić Miloje M.
Format: Article
Language:English
Published: Faculty of Technical Sciences in Cacak 2015-01-01
Series:Serbian Journal of Electrical Engineering
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1451-4869/2015/1451-48691503303K.pdf
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author Kostić Miloje M.
author_facet Kostić Miloje M.
author_sort Kostić Miloje M.
collection DOAJ
description On the basis of the known fact that all air gap main flux density variations are enclosed by permeance slot harmonics, only one component of stray losses in rotor (stator) iron is considered in the new classification, instead of 2 components: rotor (stator) pulsation iron losses, and rotor (stator) surface iron losses. No-load rotor cage (high-frequency) stray losses are usually calculated. No-load stray losses are caused by the existence of space harmonics: the air-gap slot permeance harmonics and the harmonics produced by no-load MMF harmonics. The second result is the proof that the corresponding components of stray losses can be calculated separately for the mentioned kind of harmonics. Determination of the depth of flux penetration and calculations of high frequency iron losses are improved. On the basis of experimental validation, it is proved that the new classification of no-load stray losses and the proposed method for the calculation of the total value is sufficiently accurate.
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spelling doaj.art-a2e7cb51dde2423cb7f80884c395391b2022-12-22T00:18:03ZengFaculty of Technical Sciences in CacakSerbian Journal of Electrical Engineering1451-48692217-71832015-01-0112330332010.2298/SJEE1503303K1451-48691503303KCalculation improvement of no-load stray losses in induction motors with experimental validationKostić Miloje M.0Electrical Engineering Institute “Nikola Tesla”, BelgradeOn the basis of the known fact that all air gap main flux density variations are enclosed by permeance slot harmonics, only one component of stray losses in rotor (stator) iron is considered in the new classification, instead of 2 components: rotor (stator) pulsation iron losses, and rotor (stator) surface iron losses. No-load rotor cage (high-frequency) stray losses are usually calculated. No-load stray losses are caused by the existence of space harmonics: the air-gap slot permeance harmonics and the harmonics produced by no-load MMF harmonics. The second result is the proof that the corresponding components of stray losses can be calculated separately for the mentioned kind of harmonics. Determination of the depth of flux penetration and calculations of high frequency iron losses are improved. On the basis of experimental validation, it is proved that the new classification of no-load stray losses and the proposed method for the calculation of the total value is sufficiently accurate.http://www.doiserbia.nb.rs/img/doi/1451-4869/2015/1451-48691503303K.pdfhigh frequency no-load lossesrotor (stator) iron no-load stray lossesrotor cage high-frequency lossespermeance slot harmonicsMMF harmonics
spellingShingle Kostić Miloje M.
Calculation improvement of no-load stray losses in induction motors with experimental validation
Serbian Journal of Electrical Engineering
high frequency no-load losses
rotor (stator) iron no-load stray losses
rotor cage high-frequency losses
permeance slot harmonics
MMF harmonics
title Calculation improvement of no-load stray losses in induction motors with experimental validation
title_full Calculation improvement of no-load stray losses in induction motors with experimental validation
title_fullStr Calculation improvement of no-load stray losses in induction motors with experimental validation
title_full_unstemmed Calculation improvement of no-load stray losses in induction motors with experimental validation
title_short Calculation improvement of no-load stray losses in induction motors with experimental validation
title_sort calculation improvement of no load stray losses in induction motors with experimental validation
topic high frequency no-load losses
rotor (stator) iron no-load stray losses
rotor cage high-frequency losses
permeance slot harmonics
MMF harmonics
url http://www.doiserbia.nb.rs/img/doi/1451-4869/2015/1451-48691503303K.pdf
work_keys_str_mv AT kosticmilojem calculationimprovementofnoloadstraylossesininductionmotorswithexperimentalvalidation