电源学报

应用于中压直流系统的零电流开关中频直流变换器

PDF下载

丁明进 ¹ , 杜文珍 ² , 侯鹏飞中国电源学会学生会员 ³ , 陈武中国电源学会高级会员 ³

电源学报 | DC-DC变换器 2025,23(4): 45-52

收起

电源学报 |DC-DC变换器 2025 , 23 (4) : 45 -52

应用于中压直流系统的零电流开关中频直流变换器

全屏

丁明进¹, 杜文珍², 侯鹏飞中国电源学会学生会员³, 陈武中国电源学会高级会员³

作者信息

^1.国电南京自动化股份有限公司，南京　210000

^2.中国华电集团有限公司生技部，北京　100032

^3.东南大学电气工程学院，南京　210096

通讯作者:

陈武（1981—　），男，中国电源学会高级会员，通信作者，博士，教授。研究方向：电力电子功率变换，交直流配电网，新能源发电。E-mail：chenwu@seu.edu.cn。

作者简介:

丁明进（1985—　），男，硕士，高级工程师。研究方向：电力电子能源转换技术，电能质量治理技术。Email：mingjin-ding@sac-china.com。

杜文珍（1985—　），男，本科，高级工程师。研究方向：风电光伏发电技术。Email：wenzhen-du@chd.com.cn。

侯鹏飞（2000—　），男，中国电源学会学生会员，硕士研究生。研究方向：中压直流变换器及其软开关技术。E-mail：478425450@qq.com。

Zero-current Switching Medium-frequency DC-DC Converter Applied to Medium-voltage DC System

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

出版时间: 2025-07-30 doi: 10.13234/j.issn.2095-2805.2025.4.45

文章导航

摘要

收起

直流变换器是中压直流汇集系统的核心组件，承担着升压、隔离及电能传输等重要任务。提出了1种创新的半桥型零电流软开关中频变换器，该变换器利用辅助变压器，通过2个半桥电路共享2个开关器件实现设计。变换器采用混频调制策略，使主电路运行于中频状态，承担主要的功率传输任务，而辅助电路则借助高频斩波控制技术，起到对电路的功率和电压进行调节的作用。通过合理的参数配置，确保了中频开关器件能在全负载范围内实现零电流开关，从而大幅度减少了开关损耗，提升了系统整体效率。详细介绍了变换器的工作原理并分析关键参数的设计方法，最后制作1套240 V/3 000 V/7 200 W原理样机对所提变换器的性能进行验证。

关键词

中压直流汇集 / 直流变换器 / 混频调制 / 双变压器 / 零电流开关

Abstract

收起

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.

Key words

Medium-voltage DC collection / DC-DC converter / mixed-frequency modulation / dual transformers / zero-current switching

引用本文

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

参考文献

收起

文献

收起

参考文献引证文献

排序方式：

[1]

中电联发布《中国电力行业年度发展报告2023》[J]. 现代建筑电气, 2023, 14(7): 67. China electricity council issued "China electric power industry annual development report 2023"[J]. Modern Architecture Electric, 2023, 14(7): 67. (in Chinese)

[2]

陈武, 宁光富, 刘芳, 等. 新能源大功率高压直流并网变换器[M]. 北京: 科学出版社, 2022. Chen Wu, Ning Guangfu, Liu Fang, et al. High-Power High-voltage DC/DC Converters for Grid-connected New Energy[M]. Beijing: Science Press, 2022. (in Chinese)

[3]

Zhan C, Smith C, Crane A, et al. DC transmission and distribution system for a large offshore wind farm[C]//9th IET International Conference on AC and DC Power Transmission (ACDC 2010). London, UK, 2010: 1-5.

[4]

Jovcic D. Step-up DC-DC converter for megawatt size applications[J]. IET Power Electronics, 2009, 2(6): 675-685.

[5]

包鹏, 刘雪山, 多佳琦, 等. 基于Cockcroft-Walton倍压网络的隔离型高升压比DC-DC变换器[J]. 电源学报, 2024, 22(2): 27-35. Bao Peng, Liu Xueshan, Duo Jiaqi, et al. Isolated DC-DC converter with high step-up ratio based on Cockcroft-Walton voltage multiplier network[J]. Journal of Power Supply, 2024, 22(2): 27-35. (in Chinese)

[6]

Abu Bakar Siddique H, Ali S M, De Doncker R W. DC collector grid configurations for large photovoltaic parks[C]//2013 15th European Conference on Power Electronics and Applications (EPE). Lille, France, 2013: 1-10.

[7]

Ruan X, Chen W, Fang T, et al, Control of Series-parallel Conversion Systems[M]. Springer Press, 2019.

[8]

尹瑞, 江道灼, 唐伟佳, 等. 基于模块化隔离型DC/DC变换器的海上直流风电场并网方案[J]. 电力系统自动化, 2016, 40(17): 190-196. Yin Rui, Jiang Daozhuo, Tang Weijia, et al. Modular isolated DC/DC converter based grid-connection scheme for offshore DC wind farm[J]. Automation of Electric Power Systems, 2016, 40(17): 190-196. (in Chinese)

[9]

阮新波, 严仰光. 直流开关电源的软开关技术[M]. 北京: 科学出版社, 2000. Ruan Xinbo, Yan Yangguang. Soft Switching Technology of DC Switching Power Supply[M]. Beijing: Science Press, 2000. (in Chinese)

[10]

Park K, Chen Zhe. A double uneven power converter-based DC-DC converter for high-power DC grid systems[J]. IEEE Transactions on Industrial Electronics, 2015, 62(12): 7599-7608.

[11]

陈宇. 电力电子变换系统的元件复用理论与方法[D]. 武汉: 华中科技大学, 2011. Chen Yu. The component-multi-used theory and methodology for the power electronic conversion system[D]. Wuhan: Huazhong University of Science and Technology, 2011. (in Chinese)

[12]

Shu Liangcai, Chen Wu, Ning Guangfu, et al. A resonant ZVZCS DC-DC converter with two uneven transformers for an MVDC collection system of offshore wind farms[J]. IEEE Transactions on Industrial Electronics, 2017, 64(10): 7886-7895.

[13]

Ning Guangfu, Chen Wu, Shu Liangcai, et al. A hybrid resonant ZVZCS three-level converter for MVDC-connected offshore wind power collection systems[J]. IEEE Transactions on Power Electronics, 2018, 33(8): 6633-6645.

[14]

何晓坤, 胡仁杰, 陈武. 一种适用于新能源中压直流汇集的无环流零电流软开关三电平谐振式复合全桥变换器[J]. 电工技术学报, 2023, 38(19): 5274-5287. He Xiaokun, Hu Renjie, Chen Wu. A novel circulating current free zero current switching three-level resonant composite full bridge converter for new energy medium voltage DC collection system[J]. Transactions of China Electrotechnical Society, 2023, 38(19): 5274-5287. (in Chinese)

[15]

赵玉顺, 戴义贤, 庄加才, 等. 基于热固耦合的中频变压器绝缘材料性能参数优化配合方法[J]. 电工技术学报, 2023, 38(4): 1051-1063. Zhao Yushun, Dai Yixian, Zhuang Jiacai, et al. Optimization of insulation material performance parameters for medium frequency transformers based on thermosolid coupling[J]. Transactions of China Electrotechnical Society, 2023, 38(4): 1051-1063. (in Chinese)

[16]

Zheng Zhihong, Bai Lu, Jin Tao, et al. Study on insulation design of high power high frequency high voltage transformer[C]//2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2). Beijing, China, 2018: 1-5.

[17]

赵志刚, 白若南, 陈天缘, 等. 基于智能优化算法的高频变压器电磁结构优化设计[J]. 电工技术学报, 2024, 39(18): 5610-5625. Zhao Zhigang, Bai Ruonan, Chen Tianyuan, et al. Optimization design of electromagnetic structure of high frequency transformer based on intelligent optimization algorithm[J]. Transactions of China Electrotechnical Society, 2024, 39(18): 5610-5625. (in Chinese)

2025年第23卷第4期

PDF下载

引用本文

BibTeX

文章信息

doi: 10.13234/j.issn.2095-2805.2025.4.45

接收时间：2024-08-27
首发时间：2026-10-26
出版时间：2025-07-30

补充材料

相关文章

文章信息

作者

出版历史

收稿日期：2024-08-27
修回日期：2024-10-28
录用日期：2024-11-11

基金

作者信息

^1.国电南京自动化股份有限公司，南京　210000

^2.中国华电集团有限公司生技部，北京　100032

^3.东南大学电气工程学院，南京　210096

通讯作者:

参考文献

分享链接

https://castjournals.cast.org.cn/joweb/dyxb/CN/10.13234/j.issn.2095-2805.2025.4.45

分享至

全文二维码

扫描看全文

引用本文

BibTeX

本文的引用情况

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

关闭全屏

BibTeX
EndNote
RefWorks
TxT