Single-Power-Conversion Series-Resonant AC-DC Converter with High Efficiency

Title & Authors
Single-Power-Conversion Series-Resonant AC-DC Converter with High Efficiency
Jeong, Seo-Gwang; Cha, Woo-Jun; Lee, Sung-Ho; Kwon, Bong-Hwan;

Abstract
In this study, a single-power-conversion series-resonant ac-dc converter with high efficiency and high power factor is proposed. The proposed ac-dc converter consists of single-ended primary-inductor converter with an active-clamp circuit and a voltage doubler with series-resonant circuit. The active-clamp circuit clamps the surge voltage and provides zero-voltage switching of the main switch. The series-resonant circuit consists of leakage inductance $\small{L_{lk}}$ of the transformer and resonant capacitors $\small{ C_{r1}}$ and $\small{ C_{r2}}$. This circuit also provides zero-current switching of output diodes $\small{D_1}$ and $\small{D_2}$. Thus, the switching loss of switches and reverse-recovery loss of output diodes are considerably reduced. The proposed ac-dc converter also achieves high power factor using the proposed control algorithm without the addition of a power factor correction circuit and a dc-link electrolytic capacitor. A detailed theoretical analysis and the experimental results for a 1kW prototype are discussed.
Keywords
Single-power-conversion;SEPIC(Single-Ended Primary-Inductor Converter);Voltage doubler;Active-clamp circuit;Series-resonant circuit;
Language
Korean
Cited by
References
1.
H. Ma, J. S. Lai, Q. Feng, W. Yu, C. Zheng, and Z. Zhao, "A novel valley-fill SEPIC-derived power supply without electrolytic capacitors for LED lighting application," IEEE Trans. Power Electron., Vol. 27, No. 6, pp. 3057-3071, Jun. 2012.

2.
H. S. H. Chung, K. K. Tse, S. Y. R. Hui, C. M. Mok, and M. T. Ho, "A novel maximum power point tracking technique for solar panels using a SEPIC or cuk converter," IEEE Trans. Ind. Electron., Vol. 18, No. 3, pp. 717-724, May 2003.

3.
B. Singh and B. N. Singh, "A review of single-phase improved power quality AC-DC converters," IEEE Trans. Ind. Electron., Vol. 50, No. 5, pp. 962-981, Oct. 2003.

4.
H. S. Bae, J. H. Park, B. H. Cho, and G. J. Yu, "New MPPT control strategy for two-stage grid-connected photovoltaic power conditioning system," Journal of Power Electronics, Vol. 7, No. 2, pp. 174-180, Apr. 2007.

5.
J. E. Park, J. W. Kim, B. H. Lee, and, G. W. Moon, "Design on topologies for high efficiency two-stage AC-DC converter," IEEE International Power Electronics and Motion Control Conference, Vol. 1, pp. 257-262, Jun. 2012.

6.
B. R. Lin and S. C. Huang, "Analysis, design and implementation of an interleaved single-stage AC/DC ZVS converters," Journal of Power Electronics, Vol. 12, No. 2, pp. 258-267, Mar. 2012.

7.
G. Moschopoulos and P. Jain, "Single-phase single-stage power-factor-corrected converter topologies," IEEE Trans. Ind. Electron., Vol. 52, No. 1, pp. 23-35, Feb. 2005.

8.
Y. M. Liu and L. K. Chang, "Single-stage soft-switching AC-DC converter with input current shaping for universal line applications," IEEE Trans. Ind. Electron., Vol. 56, No. 2, pp. 467-479, Feb. 2009.