A Bidirectional Modular Multilevel Resonant DC-DC Converter for Wide Voltage Range Medium-Voltage Power Conversion

被引：1
|
作者：
Cui, Wentao [1 ]
Shao, Shuai [1 ]
Wu, Tong [1 ]
Chen, Wu [2 ]
Zhang, Junming [1 ]
机构：
[1] Zhejiang Univ, Coll Elect Engn, Hangzhou 310027, Peoples R China
[2] Southeast Univ, Nanjing 210096, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2023年 / 38卷 / 10期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
Bidirectional; dc-dc; medium voltage (MV); modular multilevel converter (MMC); resonant; soft switching; wide voltage range; HIGH-FREQUENCY-LINK; DUAL-ACTIVE-BRIDGE; DISTRIBUTION-SYSTEMS; TRANSFORMER; MVDC; TOPOLOGIES;
D O I：
10.1109/TPEL.2023.3294793
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The arm inductor is found to cause the loss of soft switching in modular multilevel resonant dc-dc converters, so a full-range soft switching converter with wide voltage gain is proposed in this article. The modular multilevel structure and the CLLC resonant tank are utilized in the converter for isolated and bidirectional power conversion inmedium-voltage applications with high efficiency. Wide and continuous voltage gain regulation can be achieved with the proposed coordinated gain control method. The submodule voltages are balanced by voltage sampling and individual gate signal controls. The requirements for full-range soft switching are explained. Finally, a laboratory prototype is constructed and the experimental results verify the theoretical analysis.
引用
收藏
页码：12743 / 12756
页数：14
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