电源学报

推挽变换器共模EMI噪声的预测与抑制

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吴岳哲 ¹ , 郑成君 ² , 杜子凯 ² , 马奎安 ² , 任小永 ¹ , 陈乾宏 ¹

电源学报 | 电磁干扰与电磁兼容 2025,23(5): 316-323

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电源学报 |电磁干扰与电磁兼容 2025 , 23 (5) : 316 -323

推挽变换器共模EMI噪声的预测与抑制

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吴岳哲¹, 郑成君², 杜子凯², 马奎安², 任小永¹, 陈乾宏¹

作者信息

^1.南京航空航天大学自动化学院，南京　211106

^2.西安空间无线电技术研究所，西安　710100

通讯作者:

郑成君（1979—　），男，通信作者，硕士，高级工程师。研究方向：星载微波放大器电源设计，电磁兼容。E-mail：zhengcj@cast504.com。

作者简介:

吴岳哲（2000—　），男，硕士研究生。研究方向：航空电源和功率电力电子变换技术。E-mail：Wu.yzh@nuaa.edu.cn。

杜子凯（1985—　），男，硕士，高级工程师。研究方向：卫星载荷系统，星载电源设计。E-mail：ilvyzz@163.com。

马奎安（1985—　），男，硕士，高级工程师。研究方向：星载微波放大器电源设计。E-mail：makuian888@126.com。

任小永（1979—　），男，博士，教授。研究方向：高频/超高频功率电子变换技术，宽禁带器件应用技术，储能与控制。E-mail：renxy@nuaa.edu.cn。

陈乾宏（1974—　），女，博士，教授。研究方向：无线供电技术，磁集成技术，高频谐振变换器以及航空航天电源。E-mail：chenqh@nuaa.edu.cn。

Prediction and Suppression of Common-mode EMI Noise for Push-pull Converter

Yuezhe WU¹, Chengjun ZHENG², Zikai DU², Kuian MA², Xiaoyong REN¹, Qianhong CHEN¹

Affiliations

^1.College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China

^2.Xi'an Institute of Space Radio Technology, Xi'an 710100, China

出版时间: 2025-09-30 doi: 10.13234/j.issn.2095-2805.2025.5.316

文章导航

摘要

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作为1种典型的隔离拓扑，推挽变换器因变压器双向磁化且其输入不存在桥臂直通风险，在高可靠性场合得到广泛应用。随着变换器工作频率的提高，其共模干扰的影响凸显。因此，变换器的共模噪声建模分析对其和电磁兼容优化设计有重要的理论和应用价值。针对一、二次侧均带有中心抽头的四绕组变压器，建立了其两电容寄生参数模型，并在此模型的基础上，建立了推挽变换器的频域共模噪声模型，通过对共模噪声源和共模噪声传导路径的分析，实现了对共模噪声预测。为提升模型实用性，针对简化后的变压器模型，讨论了变压器寄生电容参数的提取方法，并提出了基于平衡电容的共模噪声抑制方法。实验验证了所建共模噪声模型的准确性以及共模噪声抑制方法的有效性。

关键词

推挽变换器 / 共模噪声 / 变压器模型 / 共模噪声抑制

Abstract

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As a typical isolation topology, the push-pull converter has been widely applied in high-reliability scenarios because the transformer is bidirectionally magnetized and the input does not have the risk of bridge arm straight through. With an increase in the converter's operating frequency, the influence of common-mode interference becomes obvious. Therefore, the common-mode noise modeling analysis of the converter has important theoretical and application value for its electromagnetic compatibility optimization design. For a four-winding transformer with a central tap on both the primary and secondary sides, its two-capacitance parasitic parameter model is established in this paper. On this basis, a common-mode noise model in the frequency domain of the push-pull converter is established. Through the analysis of the common-mode noise source and the conduction path of common-mode noise, the prediction of common-mode noise is realized. To enhance the practicability of the model, the extraction method for parasitic capacitance parameters of the transformer is discussed for the simplified transformer model, and a common-mode noise suppression method based on a balancing capacitor is proposed. The accuracy of the established common-mode noise model and the effectiveness of the common-mode noise suppression method were verified by experimental results.

Key words

Push-pull converter / common-mode noise / transformer model / common-mode noise suppression

引用本文

吴岳哲, 郑成君, 杜子凯, 马奎安, 任小永, 陈乾宏. 推挽变换器共模EMI噪声的预测与抑制. 电源学报, 2025 , 23 (5) : 316 -323 . DOI: 10.13234/j.issn.2095-2805.2025.5.316

Yuezhe WU, Chengjun ZHENG, Zikai DU, Kuian MA, Xiaoyong REN, Qianhong CHEN. Prediction and Suppression of Common-mode EMI Noise for Push-pull Converter[J]. Journal of Power Supply, 2025 , 23 (5) : 316 -323 . DOI: 10.13234/j.issn.2095-2805.2025.5.316

基金

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国家自然科学基金资助项目(52177181)

参考文献

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文献

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参考文献引证文献

排序方式：

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Meng Peipei, Zhang Junming, Chen Henglin, et al. Characterizing noise source and coupling path in Flyback converter for common-mode noise prediction[C]//2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC). Fort Worth, TX, USA, 2011: 1704-1709.

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李唐兵, 许加柱, 童涛, 等. 直流偏磁下大型变压器的振动和噪声特性分析及特征识别方法研究[J]. 电源学报. 2025, 23(2): 133-141. Li Tangbing, Xu Jiazhu, Tong Tao, et al. Analysis of vibration and noise characteristics of DC-biased large-scale transformer and research on characteristics recognition method[J]. Journal of Power Supply. 2025, 23(2): 133-141. (in Chinese)

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杨磊, 何为, 贺玉成, 等. 开放式超低场移动磁共振系统的电磁干扰抑制方法[J]. 电工技术学报, 2024, 39(15): 4708-4717. Yang Lei, He Wei, He Yucheng, et al. Electromagnetic interference suppression method for an unshielded portable ultra-low field magnetic resonance imaging scanner[J]. Transactions of China Electrotechnical Society, 2024, 39(15): 4708-4717. (in Chinese)

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2025年第23卷第5期

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文章信息

doi: 10.13234/j.issn.2095-2805.2025.5.316

接收时间：2023-02-02
首发时间：2026-10-26
出版时间：2025-09-30

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出版历史

收稿日期：2023-02-02
修回日期：2023-04-18
录用日期：2023-05-20

基金

National Natural Science Foundation of China(52177181)

国家自然科学基金资助项目(52177181)

作者信息

^1.南京航空航天大学自动化学院，南京　211106

^2.西安空间无线电技术研究所，西安　710100

通讯作者:

郑成君（1979—　），男，通信作者，硕士，高级工程师。研究方向：星载微波放大器电源设计，电磁兼容。E-mail：zhengcj@cast504.com。

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https://castjournals.cast.org.cn/joweb/dyxb/CN/10.13234/j.issn.2095-2805.2025.5.316

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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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