Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Michal Sierzega"'
Publikováno v:
Energies, Vol 17, Iss 1, p 171 (2023)
Magnetic fields in transformer cores are typically assumed to be one-dimensional fields, thus allowing magnetization processes to be regarded as axial magnetization. However, in the core corners or T-joint points of medium- and high-power rating tran
Externí odkaz:
https://doaj.org/article/bae61f8faaf3457181d046a8b9b39468
Publikováno v:
Energies, Vol 14, Iss 14, p 4110 (2021)
This paper describes a simple method of approximating hysteresis changes in electrical steel sheets. This method is based on assumptions that flux density or field strength changes are a sum or a difference of functions that describe one curve of the
Externí odkaz:
https://doaj.org/article/bcd4e5717f114c719472412277131c35
Publikováno v:
Archives of Electrical Engineering.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0cb50bb609d4f1d630035a9527e1065
https://doi.org/10.24425/aee.2019.125989
https://doi.org/10.24425/aee.2019.125989
Autor:
Michał Sierżęga, Witold Mazgaj
Publikováno v:
Archives of Electrical Engineering, Vol vol. 72, Iss No 4, Pp 855-870 (2023)
This study describes a method that allows the modelling of magnetisation processes in transformer steel sheets for any direction of the magnetic field strength. In the proposed approach, limiting hysteresis loops for the rolling and transverse direct
Externí odkaz:
https://doaj.org/article/c12829733df04571a98f0bbfd6df3bc2
Autor:
Michal Sierzega, Adam Warzecha
Publikováno v:
2019 15th Selected Issues of Electrical Engineering and Electronics (WZEE).
The paper presents the calculationresults of DFIGs in unbalanced steady-state conditions. The formulated 2D field-circuit model additionally takes into account a nonlinearity of magnetic core and a skewed rotor slots. Among others a short circuit in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::206c09e867ddac98df12a9c77c02f476
https://doi.org/10.1109/wzee48932.2019.8979788
https://doi.org/10.1109/wzee48932.2019.8979788
Publikováno v:
2018 14th Selected Issues of Electrical Engineering and Electronics (WZEE).
Magnetic core anisotropy of induction motors can disturb control processes or diagnostic procedures. This paper presents the level of secondary mechanical and electrical effects generated by an anisotropic magnetic core of two-pole cage motor. 2D fie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82c0afd1d0f65c459e4e4c54d2d1845e
https://doi.org/10.1109/wzee.2018.8749033
https://doi.org/10.1109/wzee.2018.8749033
Publikováno v:
2018 14th Selected Issues of Electrical Engineering and Electronics (WZEE).
Lines of the field strength and flux density in corners and in points, where columns and jokes are connected, are usually not parallel to the rolling direction. The hysteresis loop obtained for directions other than the rolling direction differs grea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d114d6ccdc333ae2f217c7ab3953dcc1
https://doi.org/10.1109/wzee.2018.8749055
https://doi.org/10.1109/wzee.2018.8749055
Publikováno v:
2018 International Symposium on Electrical Machines (SME).
Lines of the magnetic field in corners and T-joint points of transformer cores are not parallel to the rolling direction of the transformer sheets. Similar cases can occur in certain parts of the transformer columns during overcurrent states because
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ad2df4e1e516ab5023074e9d92b8ed2
https://doi.org/10.1109/isem.2018.8442629
https://doi.org/10.1109/isem.2018.8442629
Publikováno v:
Archives of Electrical Engineering, Vol vol. 68, Iss No 1, Pp 185-194 (2019)
The main purpose of the paper is to present a method which allows taking into account the anisotropic properties of dynamo steel sheets. An additional aim is to briefly present anisotropic properties of these sheets which are caused by occurrences of
Externí odkaz:
https://doaj.org/article/a75c40233a3945358b3eea19b1c2f170