High-Frequency Current Transformers Cascade for Power Electronics Measurements
High-frequency current transformers (HFCT) are widely used to measure fast transient current. Their advantages are simple structure and relatively moderate price. Their lower and upper bandwidth are limited, but the HFCT can be easily applied to many measuring applications in power electronics. The...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/15/5846 |
| _version_ | 1797412208451256320 |
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| author | Maciej Chojowski Marcin Baszyński Robert Sosnowski Aleksander Dziadecki |
| author_facet | Maciej Chojowski Marcin Baszyński Robert Sosnowski Aleksander Dziadecki |
| author_sort | Maciej Chojowski |
| collection | DOAJ |
| description | High-frequency current transformers (HFCT) are widely used to measure fast transient current. Their advantages are simple structure and relatively moderate price. Their lower and upper bandwidth are limited, but the HFCT can be easily applied to many measuring applications in power electronics. The disadvantages of HFCT are substantial dimensions and a large weight. The paper proposes a system of a cascade connection of two transformers, which allows us to reduce these disadvantages. The properties of such an HFCT combination were investigated and described. In the article, the expression for double current transformer transmittances is derived. The frequency response of the sensor was determined, and the results were verified in a practical arrangement. An experimental setup of a cascade CT connection was made and tested, allowing for fast-changing signals in transients to be measured. This paper presents the theoretical basis and results of laboratory work on a wide range of static and dynamic tests of the proposed sensor. |
| first_indexed | 2024-03-09T04:58:45Z |
| format | Article |
| id | doaj.art-11065304d3e04053928726cf4bedaab1 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T04:58:45Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-11065304d3e04053928726cf4bedaab12023-12-03T13:02:09ZengMDPI AGSensors1424-82202022-08-012215584610.3390/s22155846High-Frequency Current Transformers Cascade for Power Electronics MeasurementsMaciej Chojowski0Marcin Baszyński1Robert Sosnowski2Aleksander Dziadecki3Department of Power Electronics and Energy Control Systems, AGH University of Science and Technology, 30059 Krakow, PolandDepartment of Power Electronics and Energy Control Systems, AGH University of Science and Technology, 30059 Krakow, PolandDepartment of Power Electronics and Energy Control Systems, AGH University of Science and Technology, 30059 Krakow, PolandDepartment of Power Electronics and Energy Control Systems, AGH University of Science and Technology, 30059 Krakow, PolandHigh-frequency current transformers (HFCT) are widely used to measure fast transient current. Their advantages are simple structure and relatively moderate price. Their lower and upper bandwidth are limited, but the HFCT can be easily applied to many measuring applications in power electronics. The disadvantages of HFCT are substantial dimensions and a large weight. The paper proposes a system of a cascade connection of two transformers, which allows us to reduce these disadvantages. The properties of such an HFCT combination were investigated and described. In the article, the expression for double current transformer transmittances is derived. The frequency response of the sensor was determined, and the results were verified in a practical arrangement. An experimental setup of a cascade CT connection was made and tested, allowing for fast-changing signals in transients to be measured. This paper presents the theoretical basis and results of laboratory work on a wide range of static and dynamic tests of the proposed sensor.https://www.mdpi.com/1424-8220/22/15/5846current transformerhigh frequency current measurementbandwidth analysis |
| spellingShingle | Maciej Chojowski Marcin Baszyński Robert Sosnowski Aleksander Dziadecki High-Frequency Current Transformers Cascade for Power Electronics Measurements Sensors current transformer high frequency current measurement bandwidth analysis |
| title | High-Frequency Current Transformers Cascade for Power Electronics Measurements |
| title_full | High-Frequency Current Transformers Cascade for Power Electronics Measurements |
| title_fullStr | High-Frequency Current Transformers Cascade for Power Electronics Measurements |
| title_full_unstemmed | High-Frequency Current Transformers Cascade for Power Electronics Measurements |
| title_short | High-Frequency Current Transformers Cascade for Power Electronics Measurements |
| title_sort | high frequency current transformers cascade for power electronics measurements |
| topic | current transformer high frequency current measurement bandwidth analysis |
| url | https://www.mdpi.com/1424-8220/22/15/5846 |
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