A Three-Level Resonant DAB Converter Featuring Minimized Circulating Losses for EV Battery Charging

被引：8

作者：

Mary, N. J. Merlin ^{[1
]}

Sathyan, Shelas ^{[1
]}

Suryawanshi, Hiralal Muralidhar ^{[2
]}

机构：

[1] Natl Inst Technol Tiruchirappalli, Elect & Elect Engn Dept, Trichy 620015, India

[2] Visvesvaraya Natl Inst Technol, Dept Elect Engn, Nagpur 440010, Maharashtra, India

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2023年 / 70卷 / 08期

关键词：

Dual active bridge (DAB); electric vehicle (EV); resonant converter; soft-switching; three-level (TL); zero-current switching (ZCS); zero-voltage switching (ZVS); DC-DC CONVERTER; DUAL-PHASE-SHIFT; PWM CONTROL; POWER; EFFICIENCY; FREQUENCY; DESIGN; RANGE;

D O I：

10.1109/TIE.2023.3234135

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A three-level modified series-parallel bidirectional isolated dc-dc resonant converter (TL-MSPBRC) is proposed for electric vehicle (EV) battery charging. The converter's performance is enhanced for wide load conditions as the modified series-parallel resonant tank is formed by considering the parasitics in the transformer. The first-harmonic approximation (FHA) equivalent circuit model is employed to analyze the converter characteristics for the frequency modulation technique. This converter has high conversion efficiency in charging and discharging operations because of the soft-switching capability of the power switches in the primary and secondary bridges. In addition, low ON-state resistance switches in the three-level primary bridge minimize the conduction losses. A 3.3-kW converter prototype with a battery voltage range of 230-300-V is developed to validate the design method and the simulation results. The proposed converter has minimized circulating losses, good short-circuit protection, and excellent efficiency of 97.7% at the rated power level.

引用

页码：7879 / 7890

页数：12

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