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Voltage balance control for a hybrid dual-bridge series resonance converter with wide soft-switching region and reduced tank current

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Abstract

To improve the total efficiency of a dual-bridge series resonance converter, a pulse width modulation plus phase-shifted modulation with voltage balance condition is proposed for a hybrid dual-bridge series resonance converter. The control scheme is unified for the whole operating condition and with simple calculation. By employing the proposed voltage balance control, the equivalent unity voltage gain operation can always be achieved, while a simplified two degrees of freedom control can be easily formed. Wide soft-switching range and reduced tank current can be ensured by the pulse width modulation in active hybrid bridge, and power level is adjusted by the phase-shifted modulation. In addition, a magnetizing current compensation method is also employed to improve the soft-switching performance of low voltage side four MOSFETs. The effectiveness of the proposed control is verified by the experimental results.

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Acknowledgements

This work was supported in part by FDCT under Grant no. 0065/2019/A2, in part by National Natural Science Foundation of China under Grant No. 62003057, in part by Natural Science Foundation of Jiangsu Province under Grant No. BK20191029, and in part by The Natural Science Foundation of Jiangsu Higher Education Institutions of China under Grant No. 19KJB470001.

Funding

The funding was provided by Science and Technology Development Fund of Macau (Grant No: 0065/2019/A2).

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Authors and Affiliations

  1. Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau SAR, China

    Guo Chen, Xiaodong Li & Yongzhen Gong

  2. School of Electric and Automatic Engineering, Changshu Institute of Technology, Changshu, China

    Song Hu

  3. School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou, China

    Hao Chen

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  1. Guo Chen
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  2. Xiaodong Li
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  3. Yongzhen Gong
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  4. Song Hu
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  5. Hao Chen
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Correspondence to Guo Chen.

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Chen, G., Li, X., Gong, Y. et al. Voltage balance control for a hybrid dual-bridge series resonance converter with wide soft-switching region and reduced tank current. Electr Eng 106, 1487–1497 (2024). https://doi.org/10.1007/s00202-023-01839-x

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