High Step-Up Y-Source Coupled-Inductor Impedance Network Boost DC–DC Converters With Common Ground and Continuous Input Current

Ji, Yuliang; Liu, Hongchen; Feng, Yong; Wu, Fengjiang; Wheeler, Pat

Abstract

High step-up Y-source coupled-inductor impedance network boost dc-dc converter with common ground and continuous input current is presented in this paper. The proposed converter has added auxiliary diodes and capacitors to three-winding Y-shaped coupled-inductor cells to constitute the current conduction path and realize the voltage-double function. Compared to other magnetically coupled boost converters, the proposed converter can produce the higher voltage gain with more degrees of freedom in winding match. The same output gain can be obtained by using different winding turn ratios. Also, the proposed converter has a common ground and realizes the continuous input current. The corresponding topologies and steady operation principles are analyzed. The experimental results in a 300-W prototype have verified the validity of the theoretical analysis.

Citation

Ji, Y., Liu, H., Feng, Y., Wu, F., & Wheeler, P. (2020). High Step-Up Y-Source Coupled-Inductor Impedance Network Boost DC–DC Converters With Common Ground and Continuous Input Current. IEEE Journal of Emerging and Selected Topics in Power Electronics, 8(3), 3174-3183. https://doi.org/10.1109/jestpe.2019.2892499

• Journal Article Type: Article
• Online Publication Date: Jan 11, 2019
• Publication Date: 2020-09
• Deposit Date: Feb 4, 2025
• Journal: IEEE Journal of Emerging and Selected Topics in Power Electronics
• Print ISSN: 2168-6777
• Electronic ISSN: 2168-6785
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 8
• Issue: 3
• Pages: 3174-3183
• DOI: https://doi.org/10.1109/jestpe.2019.2892499
• Keywords: Common ground , continuous input current , high gain , magnetically coupled , voltage double
• Public URL: https://nottingham-repository.worktribe.com/output/4799510
• Publisher URL: https://ieeexplore.ieee.org/document/8610163