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A Wide Input-Voltage Range Quasi-Z-Source Boost DC–DC Converter With High-Voltage Gain for Fuel Cell Vehicles

Zhang, Yun; Fu, Chuanzhi; Sumner, Mark; Wang, Ping


Yun Zhang

Chuanzhi Fu

Professor of Electrical Energy Systems

Ping Wang


A quasi-Z-source Boost DC-DC converter which uses a switched-capacitor is proposed for fuel cell vehicles. The topology can obtain a high voltage gain with a wide input-voltage range, and requires only a low voltage stress across each of the components. The performance of the proposed converter is compared with other converters which use Z-source networks. A scaled-down 400V/400W prototype is developed to validate the proposed technology. The respective variation in the output voltage is avoided when the wide variation in the input voltage happens, due to the PI controller in the voltage loop, and a maximum efficiency of 95.13% is measured.


Zhang, Y., Fu, C., Sumner, M., & Wang, P. (2018). A Wide Input-Voltage Range Quasi-Z-Source Boost DC–DC Converter With High-Voltage Gain for Fuel Cell Vehicles. IEEE Transactions on Industrial Electronics, 65(6), 5201-5212.

Journal Article Type Article
Acceptance Date Aug 9, 2017
Online Publication Date Aug 29, 2017
Publication Date 2018-06
Deposit Date Oct 25, 2017
Publicly Available Date Oct 25, 2017
Journal IEEE Transactions on Industrial Electronics
Print ISSN 0278-0046
Electronic ISSN 1557-9948
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 65
Issue 6
Pages 5201-5212
Keywords Boost DC-DC converter, Quasi-Z source, switched-capacitor, voltage PI controller, voltage stress, wide range of voltage-gain
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