Analysis of a Single-Phase Transformerless Bidirectional PFC
This paper presents a single-phase transformerless bidirectional power factor corrector (PFC). A capacitor is inserted into a conventional full-bridge PFC by connecting the ac line terminal and a terminal of DC voltage. The functions of this inserted capacitor have two roles: to bypass the common-mo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/22/8329 |
| _version_ | 1827644646856065024 |
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| author | Mei Liang Pengyu Jia Tengfei Guo |
| author_facet | Mei Liang Pengyu Jia Tengfei Guo |
| author_sort | Mei Liang |
| collection | DOAJ |
| description | This paper presents a single-phase transformerless bidirectional power factor corrector (PFC). A capacitor is inserted into a conventional full-bridge PFC by connecting the ac line terminal and a terminal of DC voltage. The functions of this inserted capacitor have two roles: to bypass the common-mode leakage current from the stray capacitor; to form an LCL filter to reduce the inductor current ripple. A hybrid modulation method is employed in this PFC. The unipolar switching scheme is applied to modulate the PFC, which can achieve high efficiency. Meanwhile, an additional modulation is inserted into the blank time of low-frequency switches to decrease the changing speed of the voltage on the inserted capacitor, and to decrease the spike on the inductor current and leakage current. The performance of the PFC is experimentally verified using a 5 kW prototype. |
| first_indexed | 2024-03-09T18:22:27Z |
| format | Article |
| id | doaj.art-6532a5e936a34c8794277514b80b4735 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T18:22:27Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-6532a5e936a34c8794277514b80b47352023-11-24T08:11:24ZengMDPI AGEnergies1996-10732022-11-011522832910.3390/en15228329Analysis of a Single-Phase Transformerless Bidirectional PFCMei Liang0Pengyu Jia1Tengfei Guo2School of Electrical and Control Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Electrical and Control Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Electrical and Control Engineering, North China University of Technology, Beijing 100144, ChinaThis paper presents a single-phase transformerless bidirectional power factor corrector (PFC). A capacitor is inserted into a conventional full-bridge PFC by connecting the ac line terminal and a terminal of DC voltage. The functions of this inserted capacitor have two roles: to bypass the common-mode leakage current from the stray capacitor; to form an LCL filter to reduce the inductor current ripple. A hybrid modulation method is employed in this PFC. The unipolar switching scheme is applied to modulate the PFC, which can achieve high efficiency. Meanwhile, an additional modulation is inserted into the blank time of low-frequency switches to decrease the changing speed of the voltage on the inserted capacitor, and to decrease the spike on the inductor current and leakage current. The performance of the PFC is experimentally verified using a 5 kW prototype.https://www.mdpi.com/1996-1073/15/22/8329power factor corrector (PFC)common-mode (CM) leakage currentLCL filtermodulation |
| spellingShingle | Mei Liang Pengyu Jia Tengfei Guo Analysis of a Single-Phase Transformerless Bidirectional PFC Energies power factor corrector (PFC) common-mode (CM) leakage current LCL filter modulation |
| title | Analysis of a Single-Phase Transformerless Bidirectional PFC |
| title_full | Analysis of a Single-Phase Transformerless Bidirectional PFC |
| title_fullStr | Analysis of a Single-Phase Transformerless Bidirectional PFC |
| title_full_unstemmed | Analysis of a Single-Phase Transformerless Bidirectional PFC |
| title_short | Analysis of a Single-Phase Transformerless Bidirectional PFC |
| title_sort | analysis of a single phase transformerless bidirectional pfc |
| topic | power factor corrector (PFC) common-mode (CM) leakage current LCL filter modulation |
| url | https://www.mdpi.com/1996-1073/15/22/8329 |
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