电源学报

双有源桥型DC-AC变换器调制策略与设计优化

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冯洋洋 ¹ , 李睿 ¹ , 杨佳涛 ¹ , 李勇 ² , 鄂飞 ²

电源学报 | 电力电子变换器拓扑 2026,24(7): 61-70

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电源学报 |电力电子变换器拓扑 2026 , 24 (7) : 61 -70

双有源桥型DC-AC变换器调制策略与设计优化

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冯洋洋¹, 李睿¹, 杨佳涛¹, 李勇², 鄂飞²

作者信息

^1.电力传输与功率变换控制教育部重点实验室（上海交通大学），上海　200240

^2.宁德时代电船科技有限公司，宁德　352100

通讯作者:

李睿（1980—　），男，通信作者，博士，教授。研究方向：面向电池储能和可再生能源发电的高效电力电子变换与电网接入技术。E-mail：liruiqd@sjtu.edu.cn。

作者简介:

冯洋洋（2000—　），男，硕士研究生。研究方向：高频高效率直流、交流变换器。E-mail：takafeng@sjtu.edu.cn。

杨佳涛（1993—　），男，博士。研究方向：光伏发电系统，储能系统及双向DC-DC变换器。E-mail：yangjiatao@sjtu.edu.cn。

李勇（1976—　），男，博士。研究方向：微网及电力驱动。E-mail：liy152@catl.com。

鄂飞（1978—　），男，硕士。研究方向：微网及电力驱动。E-mail：EF@catl.com。

Modulation Strategy and Design Optimization for DAB-type DC-AC Converter

Yangyang FENG¹, Rui LI¹, Jiatao YANG¹, Yong LI², Fei E²

Affiliations

^1.Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China

^2.Ningde Times Electric Boat Technology Co., Ltd., Ningde 352100, China

出版时间: 2026-07-30 doi: 10.13234/j.issn.2095-2805.2026.7.61

文章导航

摘要

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双有源桥DAB（dual active bridge）型微逆变器采用变压器隔离升压后，经双向开关周波变频接入电网。相较于其他微型逆变器方案，该拓扑具备转换效率高、软开关范围宽、功率变换级数少及可提供无功支撑等多重优势。首先，在电路调制与控制方面，详细分析了DAB型DC-AC变换器的电路拓扑和开关阶段过程，建立了电路时域模型，给出了传输功率与软开关范围，提出了一种可行的闭环控制框架。然后，在硬件设计方面，DAB型微逆变器的主要无源元件包括变压器和电感。为进一步提升功率密度，提出了一种变压器和电感的磁集成设计方案。通过在微逆变器的变压器中构建额外磁路，可灵活调节变压器的集成电感，大幅减小磁元件体积。最后，搭建了450 W的实验样机，通过实验验证了所提调制策略和磁元件设计方法的有效性与可行性。

关键词

微型逆变器 / 双有源桥变换器 / 优化设计 / 磁集成

Abstract

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The dual active bridge (DAB) microinverter employs a transformer for isolation and step-up before connecting to the grid through bidirectional switches and cycloconverter operation. In comparison to other microinverter solutions, this design boasts numerous advantages, including high conversion efficiency, a broad soft-switching range, a reduced number of power conversion stages, and the ability to provide reactive power support. First, in terms of circuit modulation and control, the circuit topology and switching stages of the DAB DC-AC converter are thoroughly analyzed, a time-domain model is established, the range of transmitted power and soft-switching range are provided, and a feasible closed-loop control framework is proposed. Then, for hardware design, the primary passive components of the DAB microinverter include transformers and inductors. To further enhance power density, a magnetic integration design for transformers and inductors is introduced. By constructing additional magnetic paths on the microinverter transformer, the inductance value of the integrated inductor can be flexibly adjusted, significantly reducing the volume of magnetic components. Finally, a 450 W experimental prototype was built, and experiments were conducted to validate the effectiveness and feasibility of the proposed modulation strategy and magnetic component design method.

Key words

Microinverter / dual active bridge converter (DAB) / optimization design / magnetic integration

引用本文

冯洋洋, 李睿, 杨佳涛, 李勇, 鄂飞. 双有源桥型DC-AC变换器调制策略与设计优化. 电源学报, 2026 , 24 (7) : 61 -70 . DOI: 10.13234/j.issn.2095-2805.2026.7.61

Yangyang FENG, Rui LI, Jiatao YANG, Yong LI, Fei E. Modulation Strategy and Design Optimization for DAB-type DC-AC Converter[J]. Journal of Power Supply, 2026 , 24 (7) : 61 -70 . DOI: 10.13234/j.issn.2095-2805.2026.7.61

基金

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国家自然科学基金资助项目(52177187)

参考文献

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2026年第24卷第7期

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文章信息

doi: 10.13234/j.issn.2095-2805.2026.7.61

接收时间：2024-10-12
首发时间：2026-10-29
出版时间：2026-07-30

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收稿日期：2024-10-12
修回日期：2024-11-13
录用日期：2024-12-06

基金

National Natural Science Foundation of China(52177187)

国家自然科学基金资助项目(52177187)

作者信息

^1.电力传输与功率变换控制教育部重点实验室（上海交通大学），上海　200240

^2.宁德时代电船科技有限公司，宁德　352100

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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