基于能量前馈的软开关Buck变换器研究

张强; 陈俊龙; 林艺鹏; 张达敏; 郑雪钦

doi:10.19912/j.0254-0096.tynxb.2025-0765

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

基于能量前馈的软开关Buck变换器研究

更新时间：2026-10-15

- 基于能量前馈的软开关Buck变换器研究
- Vol. 47, Issue 9, Pages: 567-577(2026)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.19912/j.0254-0096.tynxb.2025-0765
  CLC： TM131
- Online First：10 October 2026，
  
  Published：2026
- 稿件说明：
移动端阅览
张强, 陈俊龙, 林艺鹏, et al. 基于能量前馈的软开关Buck变换器研究[J]. 2026, 47(9): 567-577.
DOI：

张强, 陈俊龙, 林艺鹏, et al. 基于能量前馈的软开关Buck变换器研究[J]. 2026, 47(9): 567-577. DOI： 10.19912/j.0254-0096.tynxb.2025-0765.

摘要

从功率传输的路径出发

提出一种低应力的能量前馈型软开关Buck变换器

谐振能量通过高频变压器直接传输到负载侧

而非返回电源或间接传输至负载

以此来减小谐振能量的环流导通损耗。辅助软开关网络由一个开关管、两个二极管以及一个高频变压器组成

包括辅助网络在内的所有开关管和二极管均能完成软开关工作

同时不会增大原功率电路器件的电压电流应力。首先详细分析所提方案的软开关工作原理

接着对关键参数进行理论分析和仿真验证

最后构建一台开关频率为200 kHz、输出功率为200 W的实验样机。实验结果表明

在10%到额定负载范围内

所有开关器件均能完成软开关工作

与传统的硬开关Buck变换器进行效率对比

软开关Buck在整个负载测试范围内均具有更高的效率

轻载时尤为明显

满载时的效率从93.68%提升到96.53%。

Abstract

This paper proposes a low-stress energy feedforward soft-switching Buck converter from the perspective of the power transmission path. The resonant energy is directly transferred to the load side through a high-frequency transformer

rather than being returned to the power source or indirectly delivered to the load

thereby reducing conduction losses caused by resonant energy circulation. The auxiliary soft-switching network consists of one switching device

two diodes

and a high-frequency transformer. All switching devices and diodes

including those in the auxiliary network

achieve soft-switching operation without increasing the voltage or current stress on the original power circuit components. First

the soft-switching operating principles of the proposed scheme are analyzed in detail. Then

theoretical analysis and simulation verification of key parameters are conducted. Finally

a 200 kHz

200 W experimental prototype is constructed. Test results demonstrate that all switching devices achieve soft-switching operation within a load range of 10% to full load. Compared with a conventional hard-switching Buck converter

the proposed soft-switching Buck exhibits higher efficiency across the entire load range

particularly under light-load conditions. The full-load efficiency improves from 93.68% to 96.53%.

关键词

Keywords

references

Amirahmadi A, Domb M, Persson E.High power density high efficiency wide input voltage range LLC resonant converter utilizing E-mode GaN switches[C]//2017 IEEE Applied Power Electronics Conference and Exposition (APEC). Tampa, FL, USA, 2017: 350-354.

Kolar J W, Biela J, Badstubner U.Impact of power density maximization on efficiency of DC-DC converter systems[C]//2007 7th Internatonal Conference on Power Electronics. Daegu, Korea, 2007: 23-32.

Alavi P, Babaei E, Mohseni P, et al.Study and analysis of a DC-DC soft-switched buck converter[J]. IET Power Electronics, 2020, 13(7): 1456-1465.

Cheng X F, Liu C Y, Wang D L, et al.State-of-the-art review on soft-switching technologies for non-isolated DC-DC converters[J]. IEEE Access, 2021, 9: 119235-119249.

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.

Khorasani R R, Jazi H M, Khoshkbar-Sadigh A, et al.ZVT high step-up boost converter with wide input voltage and wide output power for renewable energy applications[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022, 10(5): 6057-6069.

孙慧贤, 王群. 改进型ZVT-PWM Buck变换器的参数设计与实验[J]. 电力自动化设备, 2005, 25(8): 66-69.

Martins D C, de Seixas F J M, Brilhante J A, et al. A family of DC-to-DC PWM converters using a new ZVS commutation cell[C]//Proceedings of IEEE Power Electronics Specialist Conference-PESC '93. Seattle, WA, USA, 1993: 524-530.

Lakshminarasamma N, Ramanarayanan V.A family of auxiliary switch ZVS-PWM DC-DC converters with coupled inductor[J]. IEEE Transactions on Power Electronics, 2007, 22(5): 2008-2017.

Wu T F, Lai Y S, Hung J C, et al.Boost converter with coupled inductors and buck-boost type of active clamp[J]. IEEE Transactions on Industrial Electronics, 2008, 55(1): 154-162.

Jain N, Jain P K, Joos G.A zero voltage transition boost converter employing a soft switching auxiliary circuit with reduced conduction losses[J]. IEEE Transactions on Power Electronics, 2004, 19(1): 130-139.

Do H L.Soft-switching SEPIC converter with ripple-free input current[J]. IEEE Transactions on Power Electronics, 2012, 27(6): 2879-2887.

袁帆, 郝瑞祥, 游小杰, 等. 一种高电压增益宽范围软开关双向DC-DC变换器[J]. 中国电机工程学报, 2023, 43(19): 7626-7640.

刘雪莉, 徐睿, 李阳, 等. 基于改进型ZVT Buck电路的IPT充电系统设计[J]. 天津工业大学学报, 2024, 43(1): 64-73.

王辉, 余楷, 邾玢鑫, 等. 新型ZVT高增益DC/DC变换器[J]. 电力系统及其自动化学报, 2019, 31(4): 62-69.

林国庆, 何恩义. 一种低输入电流纹波高增益软开关DC-DC变换器[J]. 电机与控制学报, 2023, 27(5): 65-75.

赵振伟, 张民, 贾海涛, 等. 准Z源软开关高增益DC-DC变换器[J]. 太阳能学报, 2023, 44(10): 120-128.

王凤莲, 周明珠, 曹益畅, 等. 集成倍压电路的准Z源软开关变换器稳态研究[J]. 太阳能学报, 2023, 44(5): 139-145.

艾建, 沈晔豪, 杨贤彬, 等. 高降压比LLC谐振变换器[J]. 太阳能学报, 2025, 46(6): 440-450.

Vesali M, Ranjbar H, Ghafoorian F.A new soft-switching high step-down DC-DC converter for voltage regular module application[J]. IET Circuits, Devices & Systems, 2022, 16(2): 136-146.

Rahimi S, Rezvanyvardom M, Mirzaei A.A fully soft-switched bidirectional DC-DC converter with only one auxiliary switch[J]. IEEE Transactions on Industrial Electronics, 2019, 66(8): 5939-5947.

Packnezhad M, Farzanehfard H.Fully soft switched bidirectional buck-boost converter with improved voltage conversion ratio and single auxiliary switch[J]. IEEE Transactions on Industrial Electronics, 2024, 71(1): 380-387.

Hwu K I, Lin Z F, Tseng P C.Boost converter with main switch possessing ZVT and ZCT and auxiliary switch possessing ZCS[J]. Energies, 2023, 16(14): 5504.

王议锋, 王忠杰, 陈博, 等. 基于GaN的准方波Boost变换器拓扑分析[J]. 太阳能学报, 2022, 43(12): 79-87.

Sayed K, Gronfula M G, Ziedan H A.Novel soft-switching integrated boost DC-DC converter for PV power system[J]. Energies, 2020, 13(3): 749.

Zhang X J, Sun L, Guan Y S, et al.Novel high step-up soft-switching DC-DC converter based on switched capacitor and coupled inductor[J]. IEEE Transactions on Power Electronics, 2020, 35(9): 9471-9481.

丁新平, 俞寅昊, 严智强, 等. 集成三绕组耦合电感、倍压单元的准Z源变换器[J]. 太阳能学报, 2024, 45(7): 389-397.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

基于扰动微分补偿的微电网变换器级联型自抗扰稳压控制

DESIGN AND CONTROL OF WIND-HYDROGEN COUPLED SYSTEM BASED ON CHAIN DISTRIBUTION STRATEGY

LOW STRESS HIGH GAIN BOOST CONVERTER FOR SOLAR CELLS

复杂风向角下不同倾角光伏阵列风载荷的CFD研究

构网型储能系统热失控与长期衰退耦合的可靠性研究

Related Author

李佳乐

赵浛宇

祁梦心

崔皓添

靳梦延

周雪松

Lu Xinyu

Du Banghua

Related Institution

School of Automation, Wuhan University of Technology

State Grid Zhejiang Electric Power Research Institute

School of Electrical and Information Engineering, Anhui University of Technology, Ma’anshan

AI问答

⁰