Electronic Power Transformer for Power Distribution Networks
Reducing losses in electricity distribution networks is a current technical problem. This issue also has social and environmental aspects. As a promising solution one can examine the direct distribution from the medium voltage power network using new equipment based on the use of power electronics....
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| Format: | Article |
| Language: | English |
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Academy of Sciences of Moldova
2017-12-01
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| Series: | Problems of the Regional Energetics |
| Subjects: | |
| Online Access: | http://journal.ie.asm.md/assets/files/12_03_35_2017.pdf |
| _version_ | 1818066970156728320 |
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| author | Ermuraсhi Iu.V. |
| author_facet | Ermuraсhi Iu.V. |
| author_sort | Ermuraсhi Iu.V. |
| collection | DOAJ |
| description | Reducing losses in electricity distribution networks is a current technical problem. This issue also has social and environmental aspects. As a promising solution one can examine the direct distribution from the medium voltage power network using new equipment based on the use of power electronics. The aim of the paper is to propose and argue an innovative technical solution for the realization of the Solid State Transformer (SST) in order to decrease the number of energy transformation stages compared to the known solutions, simplifying the topology of the functional scheme with the reduction of production costs and the loss of energy in transformers used in electrical distribution networks. It is proposed the solution of simplifying the topology of the AC/AC electronic transformer by reducing the number of passive electronic components (resistors, inductors, capacitors) and active (transistors). The inverter of the SST transformer ensures the switching mode of the transistors, using for this purpose the inductance of the magnetic leakage flux of the high frequency transformer. The robustness of the laboratory sample of the SST 10 / 0.22 kV transformer with the power of 20 kW was manufactured and tested. Testing of the laboratory sample confirmed the functionality of the proposed scheme and the possibility of switching of the transistors to at zero current (ZCS mode) with the reduction of the energy losses. In the proposed converter a single high-frequency transformer with a simplified construction with two windings is used, which reduces its mass and the cost of making the transformer. The reduction in the manufacturing cost of the converter is also due to the decrease in the number of links between the functional elements. |
| first_indexed | 2024-12-10T15:16:14Z |
| format | Article |
| id | doaj.art-11b35f4ca2a64d9b8aabe24297ee1376 |
| institution | Directory Open Access Journal |
| issn | 1857-0070 |
| language | English |
| last_indexed | 2024-12-10T15:16:14Z |
| publishDate | 2017-12-01 |
| publisher | Academy of Sciences of Moldova |
| record_format | Article |
| series | Problems of the Regional Energetics |
| spelling | doaj.art-11b35f4ca2a64d9b8aabe24297ee13762022-12-22T01:43:47ZengAcademy of Sciences of MoldovaProblems of the Regional Energetics1857-00702017-12-013531724Electronic Power Transformer for Power Distribution NetworksErmuraсhi Iu.V.0Institute of Power Engineering of the Academy of Sciences of Moldova Kishinau, Republic of MoldovaReducing losses in electricity distribution networks is a current technical problem. This issue also has social and environmental aspects. As a promising solution one can examine the direct distribution from the medium voltage power network using new equipment based on the use of power electronics. The aim of the paper is to propose and argue an innovative technical solution for the realization of the Solid State Transformer (SST) in order to decrease the number of energy transformation stages compared to the known solutions, simplifying the topology of the functional scheme with the reduction of production costs and the loss of energy in transformers used in electrical distribution networks. It is proposed the solution of simplifying the topology of the AC/AC electronic transformer by reducing the number of passive electronic components (resistors, inductors, capacitors) and active (transistors). The inverter of the SST transformer ensures the switching mode of the transistors, using for this purpose the inductance of the magnetic leakage flux of the high frequency transformer. The robustness of the laboratory sample of the SST 10 / 0.22 kV transformer with the power of 20 kW was manufactured and tested. Testing of the laboratory sample confirmed the functionality of the proposed scheme and the possibility of switching of the transistors to at zero current (ZCS mode) with the reduction of the energy losses. In the proposed converter a single high-frequency transformer with a simplified construction with two windings is used, which reduces its mass and the cost of making the transformer. The reduction in the manufacturing cost of the converter is also due to the decrease in the number of links between the functional elements.http://journal.ie.asm.md/assets/files/12_03_35_2017.pdfelectronic transformeraelectronic keystabilization of output voltage |
| spellingShingle | Ermuraсhi Iu.V. Electronic Power Transformer for Power Distribution Networks Problems of the Regional Energetics electronic transformer a electronic keys tabilization of output voltage |
| title | Electronic Power Transformer for Power Distribution Networks |
| title_full | Electronic Power Transformer for Power Distribution Networks |
| title_fullStr | Electronic Power Transformer for Power Distribution Networks |
| title_full_unstemmed | Electronic Power Transformer for Power Distribution Networks |
| title_short | Electronic Power Transformer for Power Distribution Networks |
| title_sort | electronic power transformer for power distribution networks |
| topic | electronic transformer a electronic keys tabilization of output voltage |
| url | http://journal.ie.asm.md/assets/files/12_03_35_2017.pdf |
| work_keys_str_mv | AT ermurashiiuv electronicpowertransformerforpowerdistributionnetworks |