利用GaN-HEMT提高双有源桥双向DC-DC变换器效率

IF 1 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEJ Journal of Industry Applications Pub Date : 2023-05-01 DOI:10.1541/ieejjia.22006373

Ryuji Yamada, Akihiro Hino, Keiji Wada

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引用次数: 1

摘要

开发并评估了一种输出3.6 kW的双向隔离DC-DC变换器原型，该变换器采用gan - hemt，采用平面变压器，最大工作频率为400 kHz。双向隔离型DC-DC变换器的典型电路是LLC谐振变换器和双有源电桥(DAB)，两者都存在轻负载时效率低的缺点。在本文中，gan - hemt被用作整流器件，利用其无反向恢复损耗的特性，在轻负载下通过自然换流来降低DAB损耗。零电压开关是利用变压器励磁电流作为输入端的滞后相电流实现的。在相同元件和输入输出条件下，对LLC谐振变换器和DAB的效率进行了比较，结果表明，在大多数条件下，DAB的效率更高。最高效率为98.6%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Improvement of Efficiency in Bidirectional DC-DC Converter with Dual Active Bridge Using GaN-HEMT

A prototype bidirectional isolated DC-DC converter with an output of 3.6 kW, using GaN-HEMTs, employing a planar transformer and operating at a maximum frequency of 400 kHz, was developed and evaluated. Typical circuits for bidirectional isolated DC-DC converters are the LLC resonant converter and the dual active bridge (DAB), both of which have the disadvantage of low efficiency at light loads. In this paper, GaN-HEMTs were used as a rectifier device to reduce DAB losses with natural commutation under light loads, utilizing their no reverse recovery loss characteristics. Zero-voltage switching was achieved using the transformer excitation current as a lagging phase current on the input side. As a result of the efficiency comparison between the LLC resonant converter and DAB under the same components and input/output conditions, higher efficiency was obtained in DAB under most conditions. The maximum efficiency was 98.6%.

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来源期刊

IEEJ Journal of Industry Applications ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.80

自引率

17.60%

发文量

期刊介绍： IEEJ Journal of Industry Applications: Power Electronics - AC/AC Conversion and DC/DC Conversion, - Power Semiconductor Devices and their Application, - Inverters and Rectifiers, - Power Supply System and its Application, - Power Electronics Modeling, Simulation, Design and Control, - Renewable Electric Energy Conversion　　　 Industrial System - Mechatronics and Robotics, - Industrial Instrumentation and Control, - Sensing, Actuation, Motion Control and Haptics, - Factory Automation and Production Facility Control, - Automobile Technology and ITS Technology, - Information Oriented Industrial System Electrical Machinery and Apparatus - Electric Machines Design, Modeling and Control, - Rotating Motor Drives and Linear Motor Drives, - Electric Vehicles and Hybrid Electric Vehicles, - Electric Railway and Traction Control, - Magnetic Levitation and Magnetic Bearing, - Static Apparatus and Superconductive Application Publishing Ethics of IEEJ Journal of Industry Applications: 　　　 Code of Ethics on IEEJ IEEJ Journal of Industry Applications is a peer-reviewed journal of IEEJ (the Institute of Electrical Engineers of Japan). The publication of IEEJ Journal of Industry Applications is an essential building article in the development of a coherent and respected network of knowledge. It is a direct reflection of the quality of the work of the authors and the institutions that support them. IEEJ Journal of Industry Applications has "Peer-reviewed articles support." It is therefore important to agree upon standards of expected ethical behavior for all parties involved in the act of publishing: the author, the journal editor, the peer reviewer and IEEJ (the Institute of Electrical Engineers of Japan).