Start-up Procedure and Soft-starting Strategy for Dual Active Bridge Converter

被引:0
|
作者
Zhu, Zhichao [1 ]
Liu, Jilong [1 ]
Xiao, Fei [1 ]
Chen, Peng [2 ]
Ren, Qiang [1 ]
机构
[1] Naval Univ Engn, Natl Key Lab Sci & Technol Vessel Integrated Powe, Wuhan, Peoples R China
[2] Southeast Univ, Sch Elect Engn, Nanjing, Peoples R China
基金
中国国家自然科学基金;
关键词
Dual active bridge converter; soft-starting; start timing; duty cycle and phase shift control; DC-DC CONVERTER;
D O I
10.1109/IPEMC-ECCEAsia48364.2020.9367737
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
Dual active bridge converters are widely used in applications with high power density and bidirectional power transmission, such as distributed energy, energy storage systems, and electric vehicles. Aiming at the problems of DC bias and shock of the inductor current during the start-up of the dual active bridge converter, this paper focuses on the analysis of the start-up process of the dual active bridge converter with active load at two start timings and proposes two new soft-start methods. The first method is to achieve fast soft start by changing the start timing. And the second is to gradually increase the duty cycle of the square wave voltage of the AC sides of the H-bridge and adjust the output current reference simultaneously to achieve the soft start of the DAB converter.Finally, the effectiveness of the theoretical analysis of the start-up process of the DAB converter with active load and the proposed method for suppressing start-up inrush current and DC bias are verified by simulation.
引用
收藏
页码:566 / 571
页数:6
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