Home Journals Articles Updates About
CN
image
收藏切换
Zero-current Switching Medium-frequency DC-DC Converter Applied to Medium-voltage DC System
收藏切换
Mingjin DING1, Wenzhen DU2, Pengfei HOU  Student Member, CPSS3, Wu CHEN  Senior Member, CPSS3
Journal of Power Supply | 2025, 23(4) : 45 - 52
Less
收藏切换
Journal of Power Supply | 2025, 23(4): 45-52
• DC-DC Converters •
Zero-current Switching Medium-frequency DC-DC Converter Applied to Medium-voltage DC System
Full
Mingjin DING1, Wenzhen DU2, Pengfei HOU  Student Member, CPSS3, Wu CHEN  Senior Member, CPSS3
Affiliations
  • 1.Guodian Nanjing Automation Corporation, Nanjing 210000, China
  • 2.Biotechnology Department, China Huadian Corporation, Beijing 100032, China
  • 3.School of Electrical Engineering, Southeast University, Nanjing 210096, China
Published: 2025-07-30 doi: 10.13234/j.issn.2095-2805.2025.4.45
Outline
收藏切换

The DC-DC converter serves as a core component in medium-voltage DC collection systems, undertaking crucial tasks such as voltage boosting, isolation and power transmission. An innovative half-bridge zero-current soft-switching medium-frequency converter is proposed, which utilizes an auxiliary transformer and is designed through the sharing of two switching devices by two half-bridge circuits. This converter employs a mixed-frequency modulation strategy, enabling the main circuit to operate in a medium-frequency state to undertake the primary power transmission tasks. Meanwhile, the auxiliary circuit utilizes the high-frequency chopping control technology to regulate the circuit’s power and voltage. Through a reasonable parameter configuration, the medium-frequency switching devices are ensured to achieve zero-current switching across the full-load range, thereby significantly reducing the switching losses and enhancing the system’s overall efficiency. The working principle for the converter is introduced in detail, and the design method for key parameters is analyzed. Finally, a 240 V/3 000 V/7 200 W prototype was developed to verify the performance of the proposed converter.

Medium-voltage DC collection  /  DC-DC converter  /  mixed-frequency modulation  /  dual transformers  /  zero-current switching
丁明进, 杜文珍, 侯鹏飞中国电源学会学生会员, 陈武中国电源学会高级会员. 应用于中压直流系统的零电流开关中频直流变换器. 电源学报, 2025 , 23 (4) : 45 -52 . DOI: 10.13234/j.issn.2095-2805.2025.4.45
Mingjin DING, Wenzhen DU, Pengfei HOU, Wu CHEN. Zero-current Switching Medium-frequency DC-DC Converter Applied to Medium-voltage DC System[J]. Journal of Power Supply, 2025 , 23 (4) : 45 -52 . DOI: 10.13234/j.issn.2095-2805.2025.4.45
Appendix
Less
Year 2025 volume 23 Issue 4
71
17
Cite this Article
BibTeX
Article Info
doi: 10.13234/j.issn.2095-2805.2025.4.45
  • Receive Date：2024-08-27
  • Online Date：2026-10-26
  • Published：2025-07-30
Article Data
Affiliations
History
  • Received：2024-08-27
  • Revised：2024-10-28
  • Accepted：2024-11-11
Affiliations
    1.Guodian Nanjing Automation Corporation, Nanjing 210000, China
    2.Biotechnology Department, China Huadian Corporation, Beijing 100032, China
    3.School of Electrical Engineering, Southeast University, Nanjing 210096, China
References
Share
https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2025.4.45
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12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
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House