TY - JOUR
T1 - A Zero Ripple High Step-up DC/DC Converter With Three-winding Coupled Inductor
AU - Gao, Wei
AU - Luo, Quanming
AU - Lü, Xingyu
AU - Wei, Yuqi
AU - Zhou, Luowei
N1 - Publisher Copyright:
© 2018 Chin. Soc. for Elec. Eng.
PY - 2018/1/5
Y1 - 2018/1/5
N2 - High step-up DC/DC converters with zero input current ripple have attracted much attention for the renewable energy grid-connected generation system. A zero ripple high step-up DC/DC converter with three-winding coupled inductor was deduced in this paper, which combined a high step-up DC/DC converter with coupled inductor and a passive zero ripple circuit. The characteristics of high step-up and zero ripple were realized by using the three-winding coupled inductor. The voltage gain was improved by using the voltage multiplier, meanwhile, the voltage spikes of the resonance between the leakage inductance and the diode stray capacitor were cancelled. Two switches were clamped by each other, which reduced the switch turn-off voltage spikes, and zero-voltage-switching operation was achieved. The voltage stresses of all components are far below the output voltage, so the efficiency of the converter can be further improved by choosing low-voltage rated components. Finally, a 250W, 48V/380V prototype was built to confirm the validity of the theoretical analysis.
AB - High step-up DC/DC converters with zero input current ripple have attracted much attention for the renewable energy grid-connected generation system. A zero ripple high step-up DC/DC converter with three-winding coupled inductor was deduced in this paper, which combined a high step-up DC/DC converter with coupled inductor and a passive zero ripple circuit. The characteristics of high step-up and zero ripple were realized by using the three-winding coupled inductor. The voltage gain was improved by using the voltage multiplier, meanwhile, the voltage spikes of the resonance between the leakage inductance and the diode stray capacitor were cancelled. Two switches were clamped by each other, which reduced the switch turn-off voltage spikes, and zero-voltage-switching operation was achieved. The voltage stresses of all components are far below the output voltage, so the efficiency of the converter can be further improved by choosing low-voltage rated components. Finally, a 250W, 48V/380V prototype was built to confirm the validity of the theoretical analysis.
KW - High efficiency
KW - High step-up
KW - Three-winding coupled inductor
KW - Zero ripple
UR - https://www.scopus.com/pages/publications/85045439380
U2 - 10.13334/j.0258-8013.pcsee.161847
DO - 10.13334/j.0258-8013.pcsee.161847
M3 - 文章
AN - SCOPUS:85045439380
SN - 0258-8013
VL - 38
SP - 232
EP - 241
JO - Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
JF - Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
IS - 1
ER -
