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Title: Output-series modular DC-DC converter with self-voltage balancing for integrating variable energy sources
Authors: Sun, Changjiang
Zhu, Miao
Zhang, Xin
Huang, Jingjing
Cai, Xu
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2020
Source: Sun, C., Zhu, M., Zhang, X., Huang, J. & Cai, X. (2020). Output-series modular DC-DC converter with self-voltage balancing for integrating variable energy sources. IEEE Transactions On Power Electronics, 35(11), 11321-11327.
Project: RG 85/18
Journal: IEEE Transactions on Power Electronics
Abstract: Due to its high voltage boost capability, the output-series modular dc-dc converter (OSMDC) system with multiple independent inputs is a promising solution for the integration of distributed renewable energy. However, the unequal power injection among the variable energy sources (VESs) makes the module voltage balancing at the output stage a crucial issue for OSMDC. To solve this issue, this letter presents a new OSMDC topology based on the promising semi-dual active bridge (SDAB) converter module. Embedded non-isolated resonant dual active bridge (NRDAB) converters are constructed between the adjacent modules by adding LC branches to link the load-side active-leg midpoints of the SDABs. This configuration facilitates self-voltage balancing among the modules and retains zero-voltage switching (ZVS) characteristics of SDAB. The lab-scale experiment has been conducted to verify the operating principles and performance of the proposed OSMDC.
ISSN: 0885-8993
DOI: 10.1109/TPEL.2020.2988905
Schools: School of Electrical and Electronic Engineering 
Rights: © 2020 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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