TY - GEN
T1 - High step-up isolated DC-DC converter with multi-cell diode-capacitor network
AU - Zhang, Yan
AU - Li, Xinying
AU - Dong, Zhuo
AU - Liu, Yan Fei
AU - Liu, Jinjun
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/5/17
Y1 - 2017/5/17
N2 - The existing high step-up DC-DC converters with multi-cell diode-capacitor network have large inrush current issue and strict LC filter requirement which are not suitable to achieve both high efficiency and high power density in relatively low switching frequency and large power application. In order to meet high step-up voltage regulation and compulsory electrical isolation due to public safety, this paper proposes a single-switch isolated DC-DC converter which exploits the features of multi-winding transformer and diode-capacitor voltage boost cell. The new topology has the following advantages 1). increase voltage boost capability and avoid extreme large duty ratio. 2) achieve almost zero output voltage ripples which reducing the inductance in output LC filter, 3) reduce transformer turns ratio and magnetic component volume. Furthermore, it can use the transformer leakage inductor and auxiliary switch to achieve zero-voltage switching (ZVS), which is beneficial to reduce the switching loss and increase efficiency.
AB - The existing high step-up DC-DC converters with multi-cell diode-capacitor network have large inrush current issue and strict LC filter requirement which are not suitable to achieve both high efficiency and high power density in relatively low switching frequency and large power application. In order to meet high step-up voltage regulation and compulsory electrical isolation due to public safety, this paper proposes a single-switch isolated DC-DC converter which exploits the features of multi-winding transformer and diode-capacitor voltage boost cell. The new topology has the following advantages 1). increase voltage boost capability and avoid extreme large duty ratio. 2) achieve almost zero output voltage ripples which reducing the inductance in output LC filter, 3) reduce transformer turns ratio and magnetic component volume. Furthermore, it can use the transformer leakage inductor and auxiliary switch to achieve zero-voltage switching (ZVS), which is beneficial to reduce the switching loss and increase efficiency.
KW - Diode-capacitor network
KW - High voltage gain
KW - Isolated DC-DC converter
KW - Multi-winding transformer
KW - Zero-voltage switching (ZVS)
UR - https://www.scopus.com/pages/publications/85020038875
U2 - 10.1109/APEC.2017.7930681
DO - 10.1109/APEC.2017.7930681
M3 - 会议稿件
AN - SCOPUS:85020038875
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 114
EP - 120
BT - 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Y2 - 26 March 2017 through 30 March 2017
ER -