TY - JOUR
T1 - Novel high step-up DC-DC converter with coupled-inductor and switched-capacitor techniques for a sustainable energy system
AU - Hsieh, Yi Ping
AU - Chen, Jiann Fuh
AU - Liang, Tsorng Juu
AU - Yang, Lung Sheng
N1 - Funding Information:
Manuscript received October 13, 2010; revised April 12, 2011; accepted June 19, 2011. Date of current version December 6, 2011. This work made use of Shared Facilities supported by the National Science Council, Taiwan, under Award Numbers 99-3113-P-006-004, 100-3113-E-006-004, 100-3113-E-006-013-CC2, and by the Bureau of Energy, Ministry of Economic Affairs, under 100-00204-2. Recommended for publication by Associate Editor R. Zhang.
PY - 2011
Y1 - 2011
N2 - In this paper, a novel high step-up dc-dc converter is proposed for a sustainable energy system. The proposed converter uses coupled-inductor and switched-capacitor techniques. The capacitors are charged in parallel and discharged in series by the coupled inductor to achieve high step-up voltage gain with an appropriate duty ratio. Besides, the voltage stress on the main switch is reduced with a passive clamp circuit; low on-state resistance R ds(on) of the main switch can be adopted to reduce the conduction loss. In addition, the reverse-recovery problem of the diode is alleviated by a coupled inductor. Thus, the efficiency can be further improved. The operating principle and steady-state analyses of voltage gain are discussed in detail. Finally, a prototype circuit with 24-V input voltage, 400-V output voltage, and 200-W output power is implemented in the laboratory to verify the performance of the proposed converter.
AB - In this paper, a novel high step-up dc-dc converter is proposed for a sustainable energy system. The proposed converter uses coupled-inductor and switched-capacitor techniques. The capacitors are charged in parallel and discharged in series by the coupled inductor to achieve high step-up voltage gain with an appropriate duty ratio. Besides, the voltage stress on the main switch is reduced with a passive clamp circuit; low on-state resistance R ds(on) of the main switch can be adopted to reduce the conduction loss. In addition, the reverse-recovery problem of the diode is alleviated by a coupled inductor. Thus, the efficiency can be further improved. The operating principle and steady-state analyses of voltage gain are discussed in detail. Finally, a prototype circuit with 24-V input voltage, 400-V output voltage, and 200-W output power is implemented in the laboratory to verify the performance of the proposed converter.
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U2 - 10.1109/TPEL.2011.2160876
DO - 10.1109/TPEL.2011.2160876
M3 - Article
AN - SCOPUS:83455245413
SN - 0885-8993
VL - 26
SP - 3481
EP - 3490
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 12
M1 - 5934597
ER -