Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ana Drandić"'
Methodology for Eddy Current Losses Calculation in Linear Variable Differential Transformers (LVDTs)
Publikováno v:
Sensors, Vol 23, Iss 4, p 1760 (2023)
Linear variable differential transformer (LVDT) is a commonly used linear displacement sensor because of its good measurement characteristics. When using laminated ferromagnetic cores in LVDTs, it is very important to take eddy currents into the acco
Externí odkaz:
https://doaj.org/article/7a16542483b1448581fef80343e91a0c
Publikováno v:
Energies, Vol 14, Iss 16, p 5144 (2021)
Knowledge of lightning impulse (LI) voltage distribution over transformer windings during the design stage of the transformer is very important. Specific design differences in inductive voltage transformers make the transient analysis approach differ
Externí odkaz:
https://doaj.org/article/4e880d6cafc64e638e3b4ce859afe181
Publikováno v:
Energies, Vol 14, Iss 5144, p 5144 (2021)
Energies; Volume 14; Issue 16; Pages: 5144
Energies; Volume 14; Issue 16; Pages: 5144
Knowledge of lightning impulse (LI) voltage distribution over transformer windings during the design stage of the transformer is very important. Specific design differences in inductive voltage transformers make the transient analysis approach differ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6c790f2a770c57a9aba7b58750d0442
https://doi.org/10.3390/en14165144
https://doi.org/10.3390/en14165144
Publikováno v:
IEEE Access, Vol 12, Pp 169163-169169 (2024)
Eddy currents are decoupled into narrow eddy currents, induced by the magnetic flux tangential to the laminations, and planar eddy currents, induced by the magnetic flux perpendicular to the laminations. A numerical homogenization procedure is presen
Externí odkaz:
https://doaj.org/article/dad5fc6d49084ee8963c9bf8e911098e
Autor:
Bojan Trkulja, Ana Drandić
Publikováno v:
Engineering Analysis with Boundary Elements. 91:1-6
Power system substations and HV power lines are sources of electric and magnetic fields of industrial frequency. Guidelines for permissible electric and magnetic field strengths regarding human exposure and electromagnetic compatibility (EMC) are pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c0a98cfab3862a2cf9cf2ee9ff9f93a
https://doi.org/10.1016/j.enganabound.2018.03.002
https://doi.org/10.1016/j.enganabound.2018.03.002
Autor:
Viktor Milardić, Bojan Trkulja, Dalibor Filipović-Grčić, Ana Drandić, Igor Žiger, Tomislav Župan
Publikováno v:
Electric Power Systems Research. 147:185-191
This paper presents a fast and precise method for the calculation of internal voltage transients over the voltage instrument transformer windings. Lumped circuit parameters of the transformer winding are calculated using self-developed solvers based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f186bef84d42e5d960ba537f0a984136
https://doi.org/10.1016/j.epsr.2017.02.024
https://doi.org/10.1016/j.epsr.2017.02.024
Autor:
Bojan Trkulja, Ana Drandić
Publikováno v:
Procedia Engineering. 202:312-318
This paper presents the use of a self-developed solver based on boundary element methods (BEM) for electric field calculation of a transformer. Calculation of electric field is based on the approximation of charge density on the transformer winding.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8723aa5d7bbc5e3c8ada0eae34557f1a
https://doi.org/10.1016/j.proeng.2017.09.719
https://doi.org/10.1016/j.proeng.2017.09.719
Publikováno v:
Procedia Engineering. 202:327-332
In this paper, a method for computation of capacitance matrix for a transformer geometry is presented. Computation is based on boundary elements methods and point-matching. Unknown charge distribution on a triangular surface mesh of a winding is mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52a05ca4ecf8e873ea7ff634cf941942
https://doi.org/10.1016/j.proeng.2017.09.721
https://doi.org/10.1016/j.proeng.2017.09.721
Publikováno v:
Lecture Notes in Electrical Engineering ISBN: 9789811555992
In this paper the influence continuous transposition of the conductor has on winding RLC parameters and electric field distribution is analysed. Study is made on two types of windings, one winding with and one without conductor transposition. 3-D fin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f6de6f05a06898a91002ee1c0c037b4
https://doi.org/10.1007/978-981-15-5600-5_19
https://doi.org/10.1007/978-981-15-5600-5_19
Autor:
Ana Drandić, Bojan Trkulja
Accurate and fast computation of electric fields is of great interest in transformer design. This article presents a fast and precise method of computation of electric field of transformer windings based on the boundary element method and integral eq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::846c8724d1a4b373ac05582e16d90c44
https://doi.org/10.1049/iet-epa.2018.5680
https://doi.org/10.1049/iet-epa.2018.5680