Asymmetric snubberless current-fed full-bridge isolated DC-DC converters
DOI:
https://doi.org/10.2478/ecce-2018-0001Keywords:
DC-DC power converters, soft switching, zerocurrent switching, zero-voltage switchingAbstract
This paper presents two isolated current-fed fullbridge DC-DC converters that can be used to interface a lower voltage source into a DC bus of higher voltage. The first topology uses a resonant circuit to force current redistribution between low-voltage-side transistors and a passive rectifier. The second topology utilizes an active rectifier with secondary modulation to achieve the same goal. The resonant circuit can be formed by using transformer leakage inductance and the parasitic capacitances of the switches. The converters feature soft switching of semiconductors over a wide range of operating conditions. This is achieved with decreased energy circulation when compared to existing topologies with symmetric control and with fewer semiconductors than in those with phase-shift control. The topologies can be implemented in renewable, supercapacitor, battery, fuel cell, and DC microgrid applications. Steady-state operation and design aspects of the converters are presented and verified experimentally with 400 W prototypesReferences
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A. Kwasinski, “Quantitative Evaluation of DC Microgrids Availability: Effects of System Architecture and Converter Topology Design Choices,” IEEE Transactions on Power Electronics, vol. 26, no. 3, pp. 835-851, Mar. 2011.
G. Tibola and J. L. Duarte, “Isolated Bidirectional DC-DC Converter for Interfacing Local Storage in Two-Phase DC Grids,” in 2017 IEEE 8th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), Florianopolis, 2017, pp. 1-8. https://doi.org/10.1109/pedg.2017.7972440
B. Zhao, Q. Yu, and W. Sun, “Extended-Phase-Shift Control of Isolated Bidirectional DC-DC Converter for Power Distribution in Microgrid,” IEEE Transactions on Power Electronics, vol. 27, no. 11, pp. 4667- 4680, Nov. 2012. https://doi.org/10.1109/tpel.2011.2180928
G. Xu, D. Sha, Y. Xu and X. Liao, “Dual-Transformer-Based DAB Converter With Wide ZVS Range for Wide Voltage Conversion Gain Application,” IEEE Transactions on Industrial Electronics, vol. 65, no. 4, pp. 3306-3316, April 2018.
V. Karthikeyan and R. Gupta, “FRS-DAB Converter for Elimination of Circulation Power Flow at Input and Output Ends,” IEEE Transactions on Industrial Electronics, vol. 65, no. 3, pp. 2135-2144, Mar. 2018. https://doi.org/10.1109/tie.2017.2740853
D. B. W. Abeywardana, B. Hredzak, and V. G. Agelidis, “Single-Phase Grid-Connected LiFePO4 Battery-Supercapacitor Hybrid Energy Storage System With Interleaved Boost Inverter,” IEEE Transactions on Power Electronics, vol. 30, no. 10, pp. 5591-5604, Oct. 2015. https://doi.org/10.1109/tpel.2014.2372774
X. Sun, X. Wu, Y. Shen, X. Li, and Z. Lu, “A Current-Fed Isolated Bidirectional DC-DC Converter,” IEEE Transactions on Power Electronics, vol. 32, no. 9, pp. 6882-6895, Sept. 2017.
M. Ryu, D. Jung, J. Baek, and H. Kim, “An Optimized Design of Bi- Directional Dual Active Bridge Converter for Low Voltage Battery Charger,” in 2014 16th International Power Electronics and Motion Control Conference and Exposition, Antalya, 2014, pp. 177-183. https://doi.org/10.1109/epepemc.2014.6980709
L. Zhu, “A Novel Soft-Commutating Isolated Boost Full-Bridge ZVSPWM DC-DC Converter for Bidirectional High Power Applications,” IEEE Transactions on Power Electronics, vol. 21, no. 2, pp. 422-429, Mar. 2006. https://doi.org/10.1109/tpel.2005.869730
R. Watson and F. C. Lee, “A Soft-Switched, Full-Bridge Boost Converter Employing an Active-Clamp Circuit,” in PESC Record. 27th Annual IEEE Power Electronics Specialists Conference, Baveno, 1996, vol. 2, pp. 1948-1954. https://doi.org/10.1109/pesc.1996.548847
R. Y. Chen, T. J. Liang, J. F. Chen, R. L. Lin, and K. C. Tseng, “Study and Implementation of a Current-Fed Full-Bridge Boost DC-DC Converter With Zero-Current Switching for High-Voltage Applications,” IEEE Transactions on Industry Applications, vol. 44, no. 4, pp. 1218-1226, 2008. https://doi.org/10.1109/tia.2008.926056
P. Xuewei and A. K. Rathore, “Novel Bidirectional Snubberless Naturally Commutated Soft-Switching Current-Fed Full-Bridge Isolated DC/DC Converter for Fuel Cell Vehicles,” IEEE Transactions on Industrial Electronics, vol. 61, no. 5, pp. 2307-2315, May 2014. https://doi.org/10.1109/tie.2013.2271599
C. Iannello, S. Luo, and I. Batarseh, “Full Bridge ZCS PWM Converter for High-Voltage High-Power Applications,” IEEE Transactions on Aerospace and Electronic Systems, vol. 38, no. 2, pp. 515-526, Apr. 2002. https://doi.org/10.1109/taes.2002.1008983
A. Mohammadpour, L. Parsa, M. H. Todorovic, R. Lai, R. Datta, and L. Garces, “Series-Input Parallel-Output Modular-Phase DC-DC Converter With Soft-Switching and High-Frequency Isolation,” IEEE Transactions on Power Electronics, vol. 31, no. 1, pp. 111-119, Jan. 2016. https://doi.org/10.1109/tpel.2015.2398813
A. Blinov, D. Vinnikov, and V. Ivakhno, “Full Soft-Switching High Step-Up DC-DC Converter for Photovoltaic Applications,” in 2014 16th European Conference on Power Electronics and Applications, Lappeenranta, Finland, 2014, pp. 1-7. https://doi.org/10.1109/epe.2014.6911013
A. Chub, R. Kosenko, A. Blinov, V. Ivakhno, V. Zamaruiev, and B. Styslo, “Full Soft-Switching Bidirectional Current-Fed DC-DC Converter,” in 56th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON), Riga, 2015, pp. 189−194. https://doi.org/10.1109/rtucon.2015.7343149.
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2018-07-01
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Copyright (c) 2018 Roman Kosenko, published by Sciendo
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Kosenko, R., Blinov, A., Vinnikov, D., & Chub, A. (2018). Asymmetric snubberless current-fed full-bridge isolated DC-DC converters. Electrical, Control and Communication Engineering, 14(1), 5-11. https://doi.org/10.2478/ecce-2018-0001
