Depth comparison of common inductor and common capacitor passive current sharing methods for multiphase LLC converter
Abstract Common inductor (CIM) and common capacitor (CCM) passive current‐sharing methods have the advantages of simple implementation and low cost. However, there is still a lack of detailed comparative research on the two methods, which makes researchers confused when choosing the two methods. To...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-11-01
|
| Series: | IET Power Electronics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/pel2.12578 |
| _version_ | 1797542447737208832 |
|---|---|
| author | Zhifeng Sun Qunfang Wu Qin Wang Lan Xiao Jiangli Ren Xiao Hui |
| author_facet | Zhifeng Sun Qunfang Wu Qin Wang Lan Xiao Jiangli Ren Xiao Hui |
| author_sort | Zhifeng Sun |
| collection | DOAJ |
| description | Abstract Common inductor (CIM) and common capacitor (CCM) passive current‐sharing methods have the advantages of simple implementation and low cost. However, there is still a lack of detailed comparative research on the two methods, which makes researchers confused when choosing the two methods. To provide clear scheme guidance, this paper provides a detailed comparison of the performance of the two methods. Firstly, this paper reveals the difference between the current waveforms of the two methods, that is, the current waveform of the CIM method is distorted, while the CCM method is non‐distorted. Then, the mechanism of the above phenomenon is analysed in depth. Secondly, for comparing the current sharing performance of the two methods, the first harmonic approximation (FHA) equivalent circuit model considering parasitic parameters is established to obtain the system's current sharing error model, and the parameter sensitivity analysis is provided. Finally, the relationship between the current waveform, current sharing error, and load ripple of the two methods is discussed. Then, based on the two methods, a more attractive common resonate tanks (CRT) current‐sharing method is proposed. The correctness of the view in this paper has been verified by extensive simulations and experiment results. |
| first_indexed | 2024-03-10T13:30:40Z |
| format | Article |
| id | doaj.art-18650f5474fc4dfeb3db82a2ad29da4f |
| institution | Directory Open Access Journal |
| issn | 1755-4535 1755-4543 |
| language | English |
| last_indexed | 2024-03-10T13:30:40Z |
| publishDate | 2023-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Power Electronics |
| spelling | doaj.art-18650f5474fc4dfeb3db82a2ad29da4f2023-11-21T07:57:30ZengWileyIET Power Electronics1755-45351755-45432023-11-0116152525254810.1049/pel2.12578Depth comparison of common inductor and common capacitor passive current sharing methods for multiphase LLC converterZhifeng Sun0Qunfang Wu1Qin Wang2Lan Xiao3Jiangli Ren4Xiao Hui5College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaCollege of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaCollege of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaCollege of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaCollege of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaCollege of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaAbstract Common inductor (CIM) and common capacitor (CCM) passive current‐sharing methods have the advantages of simple implementation and low cost. However, there is still a lack of detailed comparative research on the two methods, which makes researchers confused when choosing the two methods. To provide clear scheme guidance, this paper provides a detailed comparison of the performance of the two methods. Firstly, this paper reveals the difference between the current waveforms of the two methods, that is, the current waveform of the CIM method is distorted, while the CCM method is non‐distorted. Then, the mechanism of the above phenomenon is analysed in depth. Secondly, for comparing the current sharing performance of the two methods, the first harmonic approximation (FHA) equivalent circuit model considering parasitic parameters is established to obtain the system's current sharing error model, and the parameter sensitivity analysis is provided. Finally, the relationship between the current waveform, current sharing error, and load ripple of the two methods is discussed. Then, based on the two methods, a more attractive common resonate tanks (CRT) current‐sharing method is proposed. The correctness of the view in this paper has been verified by extensive simulations and experiment results.https://doi.org/10.1049/pel2.12578DC‐DC power convertorspower electronicsresonant power convertorszero voltage switching |
| spellingShingle | Zhifeng Sun Qunfang Wu Qin Wang Lan Xiao Jiangli Ren Xiao Hui Depth comparison of common inductor and common capacitor passive current sharing methods for multiphase LLC converter IET Power Electronics DC‐DC power convertors power electronics resonant power convertors zero voltage switching |
| title | Depth comparison of common inductor and common capacitor passive current sharing methods for multiphase LLC converter |
| title_full | Depth comparison of common inductor and common capacitor passive current sharing methods for multiphase LLC converter |
| title_fullStr | Depth comparison of common inductor and common capacitor passive current sharing methods for multiphase LLC converter |
| title_full_unstemmed | Depth comparison of common inductor and common capacitor passive current sharing methods for multiphase LLC converter |
| title_short | Depth comparison of common inductor and common capacitor passive current sharing methods for multiphase LLC converter |
| title_sort | depth comparison of common inductor and common capacitor passive current sharing methods for multiphase llc converter |
| topic | DC‐DC power convertors power electronics resonant power convertors zero voltage switching |
| url | https://doi.org/10.1049/pel2.12578 |
| work_keys_str_mv | AT zhifengsun depthcomparisonofcommoninductorandcommoncapacitorpassivecurrentsharingmethodsformultiphasellcconverter AT qunfangwu depthcomparisonofcommoninductorandcommoncapacitorpassivecurrentsharingmethodsformultiphasellcconverter AT qinwang depthcomparisonofcommoninductorandcommoncapacitorpassivecurrentsharingmethodsformultiphasellcconverter AT lanxiao depthcomparisonofcommoninductorandcommoncapacitorpassivecurrentsharingmethodsformultiphasellcconverter AT jiangliren depthcomparisonofcommoninductorandcommoncapacitorpassivecurrentsharingmethodsformultiphasellcconverter AT xiaohui depthcomparisonofcommoninductorandcommoncapacitorpassivecurrentsharingmethodsformultiphasellcconverter |