Research on the Optimal Control Timing of ZVS-QSW
This article introduces a research method aimed at achieving optimal control timing for the zero-voltage quasi-square wave switch (ZVS-QSW) in a silicon carbide buck converter across a wide range. The method establishes the correlation function between optimal control timing parameters and load curr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2024-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10443415/ |
| _version_ | 1797243391250006016 |
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| author | Jian Yu Le Zhou Renhui Shen Zhiyuan Shi Aohui Niu |
| author_facet | Jian Yu Le Zhou Renhui Shen Zhiyuan Shi Aohui Niu |
| author_sort | Jian Yu |
| collection | DOAJ |
| description | This article introduces a research method aimed at achieving optimal control timing for the zero-voltage quasi-square wave switch (ZVS-QSW) in a silicon carbide buck converter across a wide range. The method establishes the correlation function between optimal control timing parameters and load current through composite segmented curve fitting to the plane of the ZVS-QSW state over the entire operating range. It also compensates for the charge change on the filter capacitor to determine the load current at the corresponding operating point. By collecting the input/output voltages and load currents and substituting them into the correlation function, the optimal timing parameters for achieving ZVS-QSW can be determined online. The proposed method is validated on a silicon carbide buck converter prototype with an input voltage of 400 V. ZVS-QSW can be achieved in the conversion ratio range of 0.1-0.9. Consequently, the proposed method not only reduces the difficulty of inductance current measurement but also simplifies and visualizes the timing control of the converter. |
| first_indexed | 2024-04-24T18:54:22Z |
| format | Article |
| id | doaj.art-c2db05d4daf74011aafe21fc45b4fc5a |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-24T18:54:22Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-c2db05d4daf74011aafe21fc45b4fc5a2024-03-26T17:46:04ZengIEEEIEEE Access2169-35362024-01-0112337693377810.1109/ACCESS.2024.336880510443415Research on the Optimal Control Timing of ZVS-QSWJian Yu0https://orcid.org/0000-0003-1359-121XLe Zhou1https://orcid.org/0009-0007-8444-4061Renhui Shen2Zhiyuan Shi3Aohui Niu4https://orcid.org/0009-0006-3760-2728School of Automation and Software Engineering, Shanxi University, Taiyuan, ChinaSchool of Automation and Software Engineering, Shanxi University, Taiyuan, ChinaSchool of Automation and Software Engineering, Shanxi University, Taiyuan, ChinaSchool of Automation and Software Engineering, Shanxi University, Taiyuan, ChinaSchool of Automation and Software Engineering, Shanxi University, Taiyuan, ChinaThis article introduces a research method aimed at achieving optimal control timing for the zero-voltage quasi-square wave switch (ZVS-QSW) in a silicon carbide buck converter across a wide range. The method establishes the correlation function between optimal control timing parameters and load current through composite segmented curve fitting to the plane of the ZVS-QSW state over the entire operating range. It also compensates for the charge change on the filter capacitor to determine the load current at the corresponding operating point. By collecting the input/output voltages and load currents and substituting them into the correlation function, the optimal timing parameters for achieving ZVS-QSW can be determined online. The proposed method is validated on a silicon carbide buck converter prototype with an input voltage of 400 V. ZVS-QSW can be achieved in the conversion ratio range of 0.1-0.9. Consequently, the proposed method not only reduces the difficulty of inductance current measurement but also simplifies and visualizes the timing control of the converter.https://ieeexplore.ieee.org/document/10443415/Curve fittingdigital controlquasi-square wavesilicon carbidezero-voltage switching |
| spellingShingle | Jian Yu Le Zhou Renhui Shen Zhiyuan Shi Aohui Niu Research on the Optimal Control Timing of ZVS-QSW IEEE Access Curve fitting digital control quasi-square wave silicon carbide zero-voltage switching |
| title | Research on the Optimal Control Timing of ZVS-QSW |
| title_full | Research on the Optimal Control Timing of ZVS-QSW |
| title_fullStr | Research on the Optimal Control Timing of ZVS-QSW |
| title_full_unstemmed | Research on the Optimal Control Timing of ZVS-QSW |
| title_short | Research on the Optimal Control Timing of ZVS-QSW |
| title_sort | research on the optimal control timing of zvs qsw |
| topic | Curve fitting digital control quasi-square wave silicon carbide zero-voltage switching |
| url | https://ieeexplore.ieee.org/document/10443415/ |
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