Modeling the Effect of Dead-Time on the Soft-Switching Characteristic of Variable-Frequency Modulated Series-Resonant DAB Converter

被引：0

作者：

Yaqoob, M. ^{[1
]}

Loo, K. H. ^{[1
]}

Lai, Y. M. ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect & Informat Engn, Hong Kong, Hong Kong, Peoples R China

来源：

2017 IEEE 18TH WORKSHOP ON CONTROL AND MODELING FOR POWER ELECTRONICS (COMPEL) | 2017年

关键词：

dual-active-bridge; dc-dc converter; zero-voltage switching; micro-grid; super-capacitor; conduction loss; switching loss; dead-time; frequency modulation; DUAL-ACTIVE-BRIDGE; DC-DC CONVERTER; PHASE-SHIFT CONTROL; TOPOLOGY; DESIGN; SYSTEM;

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：

Under wide-range variations in output current and voltage, dual-active-bridge (DAB) converter can operate with increased conduction and switching loss. A variable frequency-based power modulation scheme for an LC-type series resonant DAB converter is presented to achieve minimum-tank-current operation along with full-range soft switching. The proposed minimum-tank-current operation establishes an in-phase relationship between tank current and secondary-side voltage (low voltage and high current), which allows the switching devices of DAB converter to operate in soft-switching region. Resonant transitions of parasitic capacitances within the dead-time interval of switching devices are considered to avoid incomplete soft switching. Simulation and experimental results show the effectiveness of the proposed method with a maximum efficiency of 96.8 %.

引用

页数：8

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