Computation of Stray Losses in Transformer Bushing Regions Considering Harmonics in the Load Current
The presence of harmonics in the load current considerably increases stray losses in electric transformers. In this research paper, a new model for computing the electromagnetic field (EMF) and eddy current (EC) losses in transformer tank covers is derived considering harmonics. Maxwell’s equations...
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| Format: | Article |
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MDPI AG
2020-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/10/3527 |
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| author | Sohail Khan Serguei Maximov Rafael Escarela-Perez Juan Carlos Olivares-Galvan Enrique Melgoza-Vazquez Irvin Lopez-Garcia |
| author_facet | Sohail Khan Serguei Maximov Rafael Escarela-Perez Juan Carlos Olivares-Galvan Enrique Melgoza-Vazquez Irvin Lopez-Garcia |
| author_sort | Sohail Khan |
| collection | DOAJ |
| description | The presence of harmonics in the load current considerably increases stray losses in electric transformers. In this research paper, a new model for computing the electromagnetic field (EMF) and eddy current (EC) losses in transformer tank covers is derived considering harmonics. Maxwell’s equations are solved with their corresponding boundary conditions. The differential equation thus obtained is solved using the method of separation of variables. The obtained expressions do not require the use of special functions, accommodating them for practical implementation in the industry. The obtained formulas are evaluated for different spectrum contents of the load current and losses. The results are in good agreement with simulations carried out using the Altair Flux finite element (FE) software. |
| first_indexed | 2024-03-10T19:42:46Z |
| format | Article |
| id | doaj.art-614d7aa747fe41d9bd2c96a18bf5bab1 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T19:42:46Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-614d7aa747fe41d9bd2c96a18bf5bab12023-11-20T01:02:43ZengMDPI AGApplied Sciences2076-34172020-05-011010352710.3390/app10103527Computation of Stray Losses in Transformer Bushing Regions Considering Harmonics in the Load CurrentSohail Khan0Serguei Maximov1Rafael Escarela-Perez2Juan Carlos Olivares-Galvan3Enrique Melgoza-Vazquez4Irvin Lopez-Garcia5Programa de Maestría y Doctorado en Ingeniería, especialidad en Sistemas Eléctricos de Potencia Universidad Nacional Autónoma de México, Ciudad de México 04510, MexicoPosgrado en Eléctrica, Tecnológico Nacional de México, Instituto Tecnológico de Morelia, Morelia 58120, MexicoDepartmento de Energía, Universidad Autónoma Metropolitana Azcapotzalco, Ciudad de México 02200, MexicoDepartmento de Energía, Universidad Autónoma Metropolitana Azcapotzalco, Ciudad de México 02200, MexicoPosgrado en Eléctrica, Tecnológico Nacional de México, Instituto Tecnológico de Morelia, Morelia 58120, MexicoDepartmento de Energía, Universidad Autónoma Metropolitana Azcapotzalco, Ciudad de México 02200, MexicoThe presence of harmonics in the load current considerably increases stray losses in electric transformers. In this research paper, a new model for computing the electromagnetic field (EMF) and eddy current (EC) losses in transformer tank covers is derived considering harmonics. Maxwell’s equations are solved with their corresponding boundary conditions. The differential equation thus obtained is solved using the method of separation of variables. The obtained expressions do not require the use of special functions, accommodating them for practical implementation in the industry. The obtained formulas are evaluated for different spectrum contents of the load current and losses. The results are in good agreement with simulations carried out using the Altair Flux finite element (FE) software.https://www.mdpi.com/2076-3417/10/10/3527eddy currentselectromagnetic fieldsfinite element analysisharmonic distortiontransformer tank wall |
| spellingShingle | Sohail Khan Serguei Maximov Rafael Escarela-Perez Juan Carlos Olivares-Galvan Enrique Melgoza-Vazquez Irvin Lopez-Garcia Computation of Stray Losses in Transformer Bushing Regions Considering Harmonics in the Load Current Applied Sciences eddy currents electromagnetic fields finite element analysis harmonic distortion transformer tank wall |
| title | Computation of Stray Losses in Transformer Bushing Regions Considering Harmonics in the Load Current |
| title_full | Computation of Stray Losses in Transformer Bushing Regions Considering Harmonics in the Load Current |
| title_fullStr | Computation of Stray Losses in Transformer Bushing Regions Considering Harmonics in the Load Current |
| title_full_unstemmed | Computation of Stray Losses in Transformer Bushing Regions Considering Harmonics in the Load Current |
| title_short | Computation of Stray Losses in Transformer Bushing Regions Considering Harmonics in the Load Current |
| title_sort | computation of stray losses in transformer bushing regions considering harmonics in the load current |
| topic | eddy currents electromagnetic fields finite element analysis harmonic distortion transformer tank wall |
| url | https://www.mdpi.com/2076-3417/10/10/3527 |
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