电源学报

无铁心直流变压器的研究进展与技术剖析

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赖立 ¹ , 张波中国电源学会会士 ¹ , 李虹中国电源学会高级会员 ² , 林靖扬 ¹ , 杨伦 ¹

电源学报 | 电源新兴技术 2026,24(4): 340-352

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电源学报 |电源新兴技术 2026 , 24 (4) : 340 -352

无铁心直流变压器的研究进展与技术剖析

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赖立¹, 张波中国电源学会会士¹, 李虹中国电源学会高级会员², 林靖扬¹, 杨伦¹

作者信息

^1.华南理工大学电力学院，广州　510641

^2.浙江大学电气工程学院，杭州　310058

通讯作者:

张波（1962—　），男，中国电源学会会士，通信作者，博士，教授。研究方向：电力电子与电力传动。E-mail：epbzhang@scut.edu.cn。

作者简介:

赖立（1996—　），男，博士，博士后助理研究员。研究方向：电力电子与电力传动。E-mail：laili@.scut.edu.cn。

李虹（1980—　），女，中国电源学会高级会员，博士，教授。研究方向：电力电子与电力传动。E-mail：hong_li@zju.edu.cn。

林靖扬（1999—　），男，博士研究生。研究方向：电力电子与电力传动。E-mail：202110182784@mail.scut.edu.cn。

杨伦（1999—　），男，博士研究生。研究方向：电力电子与电力传动。E-mail：997693734@qq.com。

Research Progress and Technical Analysis of Coreless DC Transformers

Li LAI¹, Bo ZHANG Fellow, CPSS¹, Hong LI Senior Member, CPSS², Jingyang LIN¹, Lun YANG¹

Affiliations

^1.School of Electric Power Engineering, South China University of Technology, Guangzhou 510641, China

^2.College of Electrical Engineering, Zhejiang University, Hangzhou 310058, China

出版时间: 2026-04-30 doi: 10.13234/j.issn.2095-2805.2026.4.340

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摘要

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直流变压器作为一类电力电子变压器已展现出极好的应用前景，然而传统有铁心隔离变压器的重量和成本直接制约着直流变压器的发展和应用，因此采用轻量化、低成本的无铁心直流变压器就成为一个新兴研究方向。首先系统阐述了无铁心变压器的特征及在直流变压器中的功能；然后分析了无铁心直流变压器的技术形式，将其分为线性与正弦2种；最后探讨了自感谐振型、漏感谐振型和PT对称型3种正弦无铁心直流变压器的技术特点，并进行了性能比较研究。

关键词

无铁心变压器 / 无铁心直流变压器 / 重量和成本 / 高频 / PT对称

Abstract

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As a category of power electronic transformers, DC transformers have demonstrated excellent application prospects. However, the weight and cost of traditional magnetic-core isolation transformers directly constrain the development and applications of DC transformers. Consequently, coreless DC transformers employing lightweight and low-cost coreless isolation transformers have emerged as a new research direction. First, the characteristics of coreless transformers and their functions within DC transformers are systematically reviewed. Second, the technical configurations of coreless DC transformers are analyzed, categorizing them into linear and sinusoidal types. Final, the technical characteristics of three sinusoidal coreless DC transformer variants (i.e., self-inductance resonant, leakage inductance resonant and PT-symmetrical) are examined, and a comparative study of their performance is also conducted.

Key words

Coreless transformer / coreless DC transformer / weight and cost / high frequency / PT symmetry

引用本文

赖立, 张波中国电源学会会士, 李虹中国电源学会高级会员, 林靖扬, 杨伦. 无铁心直流变压器的研究进展与技术剖析. 电源学报, 2026 , 24 (4) : 340 -352 . DOI: 10.13234/j.issn.2095-2805.2026.4.340

Li LAI, Bo ZHANG, Hong LI, Jingyang LIN, Lun YANG. Research Progress and Technical Analysis of Coreless DC Transformers[J]. Journal of Power Supply, 2026 , 24 (4) : 340 -352 . DOI: 10.13234/j.issn.2095-2805.2026.4.340

基金

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国家自然科学基金重点资助项目(52130705)

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2026年第24卷第4期

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文章信息

doi: 10.13234/j.issn.2095-2805.2026.4.340

接收时间：2025-09-05
首发时间：2026-10-29
出版时间：2026-04-30

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收稿日期：2025-09-05
修回日期：2025-10-28
录用日期：2025-11-17

基金

Key Program of National Natural Science Foundation of China(52130705)

国家自然科学基金重点资助项目(52130705)

作者信息

^1.华南理工大学电力学院，广州　510641

^2.浙江大学电气工程学院，杭州　310058

通讯作者:

张波（1962—　），男，中国电源学会会士，通信作者，博士，教授。研究方向：电力电子与电力传动。E-mail：epbzhang@scut.edu.cn。

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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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