Parametric calculation of pulse transformer with open magnetic cores based on magnetostatic-field theory
An analytical method for calculating the magnetostatic field of a pulse transformer with open magnetic cores is put forward in this paper, and formulas for calculating inductances of a small aspect-ratio transformer are derived. In comparison to results calculated by finite element magnetostatic-fie...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2013-01-01
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| Series: | Physical Review Special Topics. Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevSTAB.16.010401 |
| _version_ | 1818525533933142016 |
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| author | Bin-xiong Yu Jin-liang Liu |
| author_facet | Bin-xiong Yu Jin-liang Liu |
| author_sort | Bin-xiong Yu |
| collection | DOAJ |
| description | An analytical method for calculating the magnetostatic field of a pulse transformer with open magnetic cores is put forward in this paper, and formulas for calculating inductances of a small aspect-ratio transformer are derived. In comparison to results calculated by finite element magnetostatic-field simulations, the calculated values of inductance of primary winding L_{1} and the inductance of secondary winding L_{2} have a relative error of about 5%, while the error of the coupling coefficient (k) is less than 2%. Meanwhile, the effect of current nonuniformity in the primary winding on magnetizing inductance is studied. According to the calculated results, this effect reduces the magnetizing inductance and the coupling coefficient of the transformer, and can lead to an overvoltage phenomenon on the secondary winding. A small aspect-ratio pulse transformer with open magnetic cores is developed, which has a small size of 250 mm×150 mm in length and diameter, respectively. Inductances of the transformer are measured. The measured results conform to the law obtained in this work. Tests of the pulsed transformer are carried out. Experimental results show that the transformer can export a high-voltage pulse with an amplitude of 310 kV and full width at half maximum of 1 μs. |
| first_indexed | 2024-12-11T06:10:21Z |
| format | Article |
| id | doaj.art-1848e05ec1fa4f6da42274292cfa905a |
| institution | Directory Open Access Journal |
| issn | 1098-4402 |
| language | English |
| last_indexed | 2024-12-11T06:10:21Z |
| publishDate | 2013-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Special Topics. Accelerators and Beams |
| spelling | doaj.art-1848e05ec1fa4f6da42274292cfa905a2022-12-22T01:18:09ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022013-01-0116101040110.1103/PhysRevSTAB.16.010401Parametric calculation of pulse transformer with open magnetic cores based on magnetostatic-field theoryBin-xiong YuJin-liang LiuAn analytical method for calculating the magnetostatic field of a pulse transformer with open magnetic cores is put forward in this paper, and formulas for calculating inductances of a small aspect-ratio transformer are derived. In comparison to results calculated by finite element magnetostatic-field simulations, the calculated values of inductance of primary winding L_{1} and the inductance of secondary winding L_{2} have a relative error of about 5%, while the error of the coupling coefficient (k) is less than 2%. Meanwhile, the effect of current nonuniformity in the primary winding on magnetizing inductance is studied. According to the calculated results, this effect reduces the magnetizing inductance and the coupling coefficient of the transformer, and can lead to an overvoltage phenomenon on the secondary winding. A small aspect-ratio pulse transformer with open magnetic cores is developed, which has a small size of 250 mm×150 mm in length and diameter, respectively. Inductances of the transformer are measured. The measured results conform to the law obtained in this work. Tests of the pulsed transformer are carried out. Experimental results show that the transformer can export a high-voltage pulse with an amplitude of 310 kV and full width at half maximum of 1 μs.http://doi.org/10.1103/PhysRevSTAB.16.010401 |
| spellingShingle | Bin-xiong Yu Jin-liang Liu Parametric calculation of pulse transformer with open magnetic cores based on magnetostatic-field theory Physical Review Special Topics. Accelerators and Beams |
| title | Parametric calculation of pulse transformer with open magnetic cores based on magnetostatic-field theory |
| title_full | Parametric calculation of pulse transformer with open magnetic cores based on magnetostatic-field theory |
| title_fullStr | Parametric calculation of pulse transformer with open magnetic cores based on magnetostatic-field theory |
| title_full_unstemmed | Parametric calculation of pulse transformer with open magnetic cores based on magnetostatic-field theory |
| title_short | Parametric calculation of pulse transformer with open magnetic cores based on magnetostatic-field theory |
| title_sort | parametric calculation of pulse transformer with open magnetic cores based on magnetostatic field theory |
| url | http://doi.org/10.1103/PhysRevSTAB.16.010401 |
| work_keys_str_mv | AT binxiongyu parametriccalculationofpulsetransformerwithopenmagneticcoresbasedonmagnetostaticfieldtheory AT jinliangliu parametriccalculationofpulsetransformerwithopenmagneticcoresbasedonmagnetostaticfieldtheory |