A New Buck-Boost Converter Configuration Reducing Current Stress on the Switch

Các tác giả

Email tác giả liên hệ:

banvn.ncs@hcmute.edu.vn

DOI:

https://doi.org/10.54644/jte.2025.1816

Từ khóa:

Buck-Boost Converter, SEPIC Converter, DC-DC Converter, Non-Isolated, Positive Output

Tóm tắt

This paper presents a novel configuration for a DC buck-boost converter that mitigates current stress from inductors and capacitors on the switches during conduction states. Steady-state analysis, ripple current, voltage stress, and power loss evaluations have been conducted. Simulation and analytical results in buck and boost modes reveal that the proposed converter exhibits very low ideal load current overshoot for switches S1, S2, and diodes D1 and D2, even when the conversion ratio ranges from 0.2 to 2. This performance surpasses SEPIC and other analyzed configurations, contributing to reduced power losses and improved overall efficiency. Furthermore, performance experiments, including the impact of parasitic resistances, confirm that the proposed converter achieves the highest efficiency compared to other converters. These results demonstrate superior performance, reduced power losses, and extended lifespan, making the converter an optimal solution for power electronics and electrical applications. In addition, the converter features continuous input and output currents, making it particularly suitable for renewable energy applications such as photovoltaic systems, battery energy storage, and microgrid systems, where current continuity is essential for enhancing system stability and minimizing electromagnetic interference.

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Tiểu sử của Tác giả

Van Ban Nguyen, Ho Chi Minh City University of Technology and Engineering, Vietnam

Van Ban Nguyen received bachelor’s and master’s degrees in Electrical Engineering from Ho Chi Minh City University of Technology and Engineering (HCM-UTE), Vietnam, in 2002 and 2009, respectively. Currently, he is studying for his Ph.D at the Faculty of Electrical-Electronic Engineering, HCM-UTE and working at the Faculty of Electrical-Electronic Engineering and the Power System and Renewable Energy Laboratory (C201), HCM-UTE.

Email: banvn.ncs@hcmute.edu.vn. ORCID:  https://orcid.org/0009-0000-1382-3864

Thanh Hai Quach, Ho Chi Minh City University of Technology and Engineering, Vietnam

Thanh Hai Quach was born in 1972, in Vietnam. He received B.S degrees in Electrical Engineering from Ho Chi Minh City University of Technology and Engineering (HCM-UTE), Vietnam, in 1995 MS and PhD degrees in Electrical Engineering from Ho Chi Minh City University of Technology, Vietnam, in 2002 and 2014. Since 1995, he has been with the Department of Electrical and Electronics Engineering, HCM-UTE. His research interests are power electronics and PWM techniques.

Email: haiqt@hcmute.edu.vn.  ORCID:   https://orcid.org/0000-0003-0751-391X

Viet Anh Truong, Ho Chi Minh City University of Technology and Engineering, Vietnam

Viet Anh Truong was born in Ha Noi, Vietnam in 1971. He received his B.Eng., M.Eng., and PhD. degrees in Electrical Engineering from Ho Chi Minh City University of Technology (HCMUT), Vietnam National University Ho Chi Minh City (VNU-HCM), Vietnam, in 1994, 1999, and 2004, respectively. He is currently working at the Faculty of Electrical-Electronic Engineering and the Power System and Renewable Energy Laboratory (C201), Ho Chi Minh City University of Technology and Engineering, Vietnam.

Email: anhtv@hcmute.edu.vn. ORCID:  https://orcid.org/0000-0002-5151-5771

Vo Hong Nghi Pham, Ho Chi Minh City University of Technology and Engineering, Vietnam

Vo Hong Nghi Pham graduated with a Bachelor’s degree in Electrical and Electronic Engineering from Ho Chi Minh City University of Technology and Engineering (HCM-UTE) in 2022. In 2024, he earned a Master’s in Electrical Engineering from the same institution. He is pursuing his Ph.D and working at the Laboratory (C201) of HCM-UTE, Vietnam.

Email: nghipvh@hcmute.edu.vn.  ORCID:  https://orcid.org/0009-0008-8325-1177

Tài liệu tham khảo

M. Forouzesh, Y. P. Siwakoti, S. A. Gorji, F. Blaabjerg, and B. Lehman, “Step-up DC–DC converters: A comprehensive review of voltage-boosting techniques, topologies, and applications,” IEEE Trans. Power Electron., vol. 32, no. 12, pp. 9143–9178, Dec. 2017. DOI: https://doi.org/10.1109/TPEL.2017.2652318

H. L. Do, “Soft-switching SEPIC converter with ripple-free input current,” IEEE Trans. Power Electron., vol. 27, no. 6, pp. 2879–2887, Jun. 2012, doi: 10.1109/TPEL.2011.2175408. DOI: https://doi.org/10.1109/TPEL.2011.2175408

M. Veerachary and V. Khubchandani, “Analysis, design, and control of switching capacitor based buck–boost converter,” IEEE Trans. Ind. Appl., vol. 55, no. 3, pp. 2845–2857, May/Jun. 2019. DOI: https://doi.org/10.1109/TIA.2018.2889848

K. Varesi, S. H. Hosseini, M. Sabahi, E. Babaei, S. Saeidabadi, and N. Vosoughi, “Design and analysis of a developed multi-port high step-up DC–DC converter with reduced device count and normalized peak inverse voltage on the switches/diodes,” IEEE Trans. Power Electron., vol. 33, no. 6, pp. 1092–1100, Jun. 2018. DOI: https://doi.org/10.1109/PEDSTC.2018.8343762

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V. A. Truong, V. M. N. Luong, Q. T. Nguyen, and T. H. Quach, “A new buck-boost converter structure with improved efficiency,” in Proc. Int. Conf. System Science and Engineering (ICSSE), Ho Chi Minh, Vietnam, 2023, pp. 593–597. DOI: https://doi.org/10.1109/ICSSE58758.2023.10227177

H. Gholizadeh, S. A. Gorji, and D. Sera, “A quadratic buck–boost converter with continuous input and output currents,” IEEE Access, vol. 11, pp. 22376–22393, 2023. DOI: https://doi.org/10.1109/ACCESS.2023.3253102

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Tải xuống

Đã Xuất bản

2026-08-28

Cách trích dẫn

[1]
Van Ban Nguyen, Thanh Hai Quach, Viet Anh Truong, và Vo Hong Nghi Pham, “A New Buck-Boost Converter Configuration Reducing Current Stress on the Switch”, JTE, vol 21, số p.h 03, tr 69–78, tháng 8 2026.

Số

T. 21 S. 03 (2026)

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