A Nonisolated Bidirectional ZVS Converter for Low Power Application

mahmood vesali, majid delshad


In this paper, a new zero voltage switching bidirectional DC-DC converter with low number elements is proposed. The synchronous rectification and soft-switching techniques are adopted to reduce the conduction loss and switching loss respectively. In the proposed converter any auxiliary circuits for providing soft switching conditions are not used, therefore the efficiency can be improved. In this converter the switches are gated with PWM signal and in complementary form, therefore the implementation of control circuit is simple. Since the proposed bidirectional DC-DC converter has only three main components with two snubber capacitors, the power density is very high. Simulation and experimental results verified the theoretical analysis and the efficiency of proposed converter in full load is about 96%.

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A. Nasiri, Z. Nie, S. B. Bekiarov, and A. Emadi, “An on-line UPS system with power factor correction and electric isolation using BIFRED converter,” IEEE Trans. Ind. Electron, vol. 55, No. 2, pp. 722-730, Feb. 2008.

L. Wang, Z. Wang, H. Li, “Asymmetrical Duty Cycle Control and Decoupled Power Flow Design of a three-port Bidirectional DC-DC Converter for Fuel Cell Vehicle Application,” IEEE Trans. Power Electron, vol. 27, No. 2, pp. 891-904, 2012.

K. Jin, M. Yang, X. Ruan, and M. Xu, “Three-level bidirectional converter for fuelcell/battery hybrid power system,” IEEE Trans. Ind. Electron, vol. 57, No. 6, pp. 1976-1986, Jun. 2010.

B. Allaoua, A. Laoufi, B. Mebarki, “Bat Optimization for a Dual-Source Energy Management in an Electric Vehicle Energy Storage Strategy,” ECTI Trans on electrical ENG, vol. 11, No. 2, pp. 95-100, 2013.

I1. O. Lee, “A Hybrid PWM-Resonant DC-DC Converter for Electric Vehicle Battery Charger Application,” Journal of Power Electronics, vol. 15, No. 5, pp. 1158-1167, September. 2015.

Z. Amjadi, S. S. Williamson, “A novel control technique for a switched-capacitor-converter based hybrid electric vehicle energy storage system,” IEEE Trans, Ind. Electron, vol. 57, No. 3, pp. 926-934, Mar. 2010.

M. B. Camara, H. Gualous, F. Gustin, A. Berthon, and B. Dakyo, “DC/DC converter design for super capacitor and battery power management in hybrid vehicle application-Polynomial control strategy,” IEEE Trans. Ind. Electron, vol. 57, No. 2, pp. 587-597, February. 2010.

T. LaBella, Y. Wensong, L.J. Sheng, M. Senesky and D. Anderson, “A Bidirectional-Switch-Based Wide-Input Range High-Efficiency Isolated Resonant Converter for Photovoltaic Applications,” IEEE Trans. Power Electron, vol. 29, No. 7, pp. 3473-3484, July. 2014.

Y. S. Lee, G. T. Cheng, “Quasi-Resonant Zero-Current-Switching Bidirectional Converter for Battery Equalization Applications,” IEEE Trans, Power Electron, vol. 21, No. 51, pp. 1213-1224, 2006.

G. Ma, W. Ou, G. Yu, Y. Liu, N. Liang, W. Li, “A zero-voltage switching bidirectional dc-dc converter with state analysis and soft switching-oriented design consideration, ” IEEE Trans. Ind. Electron, vol. 56, No. 6, p. 2174-2184, June 2009.

M. R. Mohammadi, H. Farzanehfard, “New Family of Zero-Voltage-Transition PWM Bidirectional Converters with Coupled Inductors,” IEEE Trans, Ind. Electron, vol. 59, No. 2, pp. 912-919, 2012.

P. Das, B. Laan, S. A. Mousavi, G. Moschopolous, “A Nonisolated Bidirectional ZVS PWM Active Clamped DC-DC Converter,” IEEE Trans. Power Electron, vol. 24, No. 2, pp. 553-558, February 2009.

J. W. Yang, H. L. Do, “Soft-Switching Bidirectional DC-DC Converter Using a Lossless Active Snubber,” IEEE Trans. Circuits and System, vol. 61. No. 5, pp. 1588-1596, 2014.

N. Mohan, T. M. Undeland, and W. P. Robbins, Power Electronics: Converters, Applications, and Design, 3d ed., Wiley, New York, 2003.


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