Current Ripple Reduction Employing the Reactor of DC–DC Converter to Have Variable Inductance through Magnetic Saturation
When DC distribution grids with different voltage levels are connected, harmonic currents flow into the grid under light load conditions, which is a significant cause of grid instability. In this paper, we proposed a method to reduce the current ripple at light load by designing a bidirectional DC–D...
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | IET Electrical Systems in Transportation |
| Online Access: | http://dx.doi.org/10.1049/2023/6658744 |
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| _version_ | 1832546758082691072 |
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| author | Chang-Ho Lee Tuan-Vu Le Feel-soon Kang Sung-Jun Park |
| author_facet | Chang-Ho Lee Tuan-Vu Le Feel-soon Kang Sung-Jun Park |
| author_sort | Chang-Ho Lee |
| collection | DOAJ |
| description | When DC distribution grids with different voltage levels are connected, harmonic currents flow into the grid under light load conditions, which is a significant cause of grid instability. In this paper, we proposed a method to reduce the current ripple at light load by designing a bidirectional DC–DC converter reactor to have an inductance variable according to the load power capacity. The inductance is varied using magnetic saturation and implemented in three ways: two magnetic circuits in one magnetomotive force (MMF) circuit, a single magnetic circuit in one MMF circuit, and two magnetic components with different magnetic permeability in one MMF circuit. The feasibility is verified through simulation and experiments targeting the 750 and 380 V DC grid connection. The operating characteristics and efficiency are compared and analyzed by applying the existing and proposed variable reactor to a bidirectional DC–DC converter. |
| format | Article |
| id | doaj-art-b2de305f1577444e8d8e46e868e85d79 |
| institution | Kabale University |
| issn | 2042-9746 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Electrical Systems in Transportation |
| spelling | doaj-art-b2de305f1577444e8d8e46e868e85d792025-02-03T06:47:19ZengWileyIET Electrical Systems in Transportation2042-97462023-01-01202310.1049/2023/6658744Current Ripple Reduction Employing the Reactor of DC–DC Converter to Have Variable Inductance through Magnetic SaturationChang-Ho Lee0Tuan-Vu Le1Feel-soon Kang2Sung-Jun Park3G&EPS Co. Ltd.G&EPS Co. Ltd.Department of Mechatronics EngineeringDepartment of Electrical EngineeringWhen DC distribution grids with different voltage levels are connected, harmonic currents flow into the grid under light load conditions, which is a significant cause of grid instability. In this paper, we proposed a method to reduce the current ripple at light load by designing a bidirectional DC–DC converter reactor to have an inductance variable according to the load power capacity. The inductance is varied using magnetic saturation and implemented in three ways: two magnetic circuits in one magnetomotive force (MMF) circuit, a single magnetic circuit in one MMF circuit, and two magnetic components with different magnetic permeability in one MMF circuit. The feasibility is verified through simulation and experiments targeting the 750 and 380 V DC grid connection. The operating characteristics and efficiency are compared and analyzed by applying the existing and proposed variable reactor to a bidirectional DC–DC converter.http://dx.doi.org/10.1049/2023/6658744 |
| spellingShingle | Chang-Ho Lee Tuan-Vu Le Feel-soon Kang Sung-Jun Park Current Ripple Reduction Employing the Reactor of DC–DC Converter to Have Variable Inductance through Magnetic Saturation IET Electrical Systems in Transportation |
| title | Current Ripple Reduction Employing the Reactor of DC–DC Converter to Have Variable Inductance through Magnetic Saturation |
| title_full | Current Ripple Reduction Employing the Reactor of DC–DC Converter to Have Variable Inductance through Magnetic Saturation |
| title_fullStr | Current Ripple Reduction Employing the Reactor of DC–DC Converter to Have Variable Inductance through Magnetic Saturation |
| title_full_unstemmed | Current Ripple Reduction Employing the Reactor of DC–DC Converter to Have Variable Inductance through Magnetic Saturation |
| title_short | Current Ripple Reduction Employing the Reactor of DC–DC Converter to Have Variable Inductance through Magnetic Saturation |
| title_sort | current ripple reduction employing the reactor of dc dc converter to have variable inductance through magnetic saturation |
| url | http://dx.doi.org/10.1049/2023/6658744 |
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