Isolated DC/DC Structure Based on Modular Multilevel Converter

被引：296
作者：
Kenzelmann, Stephan [1 ]
Rufer, Alfred [1 ]
Dujic, Drazen [2 ]
Canales, Francisco [2 ]
de Novaes, Yales Romulo [3 ]
机构：
[1] Ecole Polytech Fed Lausanne, LEI, IEL STI LEI, CH-1015 Lausanne, Switzerland
[2] ABB Switzerland Ltd, Corp Res, CH-5405 Baden, Switzerland
[3] Univ Estado Santa Catarina, nPEE DEE CCT UDESC, BR-89223100 Joinville, Brazil
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2015年 / 30卷 / 01期
关键词：
DC/DC converter; dc power systems; modular multilevel converter; M2C; power electronics; POWER ELECTRONICS; FUTURE;
D O I：
10.1109/TPEL.2014.2305976
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：
In the future, new aspects from decentralized generation using different dc voltage levels are expected to influence the general concept of power exchange. Converter are needed to adapt the voltage between low voltage (LV), medium voltage (MV), and high voltage (HV). In this paper, a galvanic isolated bidirectional dc/dc converter based on the modular multilevel converter is studied, with a large potential for secure and flexible dc power flow control. The use of medium frequency transformation allows savings in copper and iron. A fundamental frequency modulation method is introduced for the presented converter, that enables variable stepup or step-down between primary and secondary dc voltage in discrete steps. The balancing mechanism of the internal power storage components is explained and verified by simulation and experiment.
引用
收藏
页码：89 / 98
页数：10
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