Universal High-Frequency-Link Characterization and Practical Fundamental-Optimal Strategy for Dual-Active-Bridge DC-DC Converter Under PWM Plus Phase-Shift Control

被引：285

作者：

Zhao, Biao ^{[1
]}

Song, Qiang ^{[1
]}

Liu, Wenhua ^{[1
]}

Liu, Guowei ^{[2
]}

Zhao, Yuming ^{[2
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

[2] Shenzhen Power Supply Corp, Shenzhen 518048, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2015年 / 30卷 / 12期

关键词：

DC-DC converter; dual-active-bridge; high-frequency link; phase shift; pulse-width modulation; POWER; EFFICIENCY; DESIGN;

D O I：

10.1109/TPEL.2015.2430934

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

This letter first develops a universal steady-state model to simply and accurately describe the analytical expressions for the high-frequency-link (HFL) electrical quantities of isolated dual-active-bridge (DAB) dc-dc converter under PWM plus phase-shift control. Second, a universal reactive power interaction among the HFL electrical quantities is present; using this interaction, the circulating current characteristic of DAB can be described accurately by HFL power factor. On this basis, a practical HFL fundamental-optimal strategy is proposed to decrease the circulating current and increase the efficiency. At last, experimental results verify the correctness of the universal model and the effectiveness of the fundamental-optimal strategy.

引用

页码：6488 / 6494

页数：7

共 14 条

[1]

Experimental Comparison of Traditional Phase-Shift, Dual-Phase-Shift, and Model-Based Control of Isolated Bidirectional DC-DC Converters [J].