Dead-Time Effect Analysis of Dual Active Bridge DC-DC Converter with Dual-Phase-Shift Control

被引：0

作者：

Song, Chaochao ^{[1
]}

Chen, Alian ^{[1
]}

Chen, Jie ^{[1
]}

Du, Chunshui ^{[1
]}

Zhang, Chenghui ^{[1
]}

机构：

[1] Shandong Univ, Sch Control Sci & Engn, Jinan, Shandong, Peoples R China

来源：

2017 CHINESE AUTOMATION CONGRESS (CAC) | 2017年

基金：

中国国家自然科学基金;

关键词：

Dual active bridge DC-DC converter; dead time; switching characterization; voltage distortion; parameter-setting; STRATEGY;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper gives a detailed analysis about the causes of the voltage distortion caused by dead time in dual active bridge (DAB) DC-DC converter. The zero-crossing point of the equivalent leakage inductor's current is the definitive factor for various voltage distortion phenomena, which is determined by dead time and phase-shift ratios. Based on the switching characterization of DAB in dual-phase-shift scheme, a comprehensive summary of dead-time effect is acquired, including voltage polarity reversal, voltage sag and duty-cycle abnormity. At the same time, the causes of these phenomena are analyzed in detail. Considering all kinds of voltage distortion phenomena will affect the transmission power and other issues, a special operation mode defined as recessive-dead-time mode is obtained. In recessive-dead-time mode, the dead-time effect can be avoided by reasonable parameter-setting, thus, the voltage distortion will not occur. Finally, experimental results verify the theoretical analysis.

引用

页码：6545 / 6550

页数：6

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