改进耦合电感倍压单元的高增益DC-DC变换器

丁新平; 张鹏程; 张春林; 严智强; 戴万宜

doi:10.19912/j.0254-0096.tynxb.2024-1896

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (3) : 594-603. DOI: 10.19912/j.0254-0096.tynxb.2024-1896

改进耦合电感倍压单元的高增益DC-DC变换器

丁新平, 张鹏程, 张春林, 严智强, 戴万宜

作者信息 +

HIGH GAIN DC-DC CONVERTER WITH IMPROVED COUPLED INDUCTOR VOLTAGE MULTIPLIER CELL

Ding Xinping, Zhang Pengcheng, Zhang Chunlin, Yan Zhiqiang, Dai Wanyi

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文章历史 +

摘要

提出一种改进耦合电感倍压单元的高增益DC-DC变换器,该变换器适用于将较低的光伏组件电压提升到高压直流母线所需的电压等级。所提变换器由前级的SEPIC网络和后级的改进耦合电感倍压单元构成,具有增益高、纹波低、开关电压应力小、体积轻、效率高等优点。通过改变升压单元和耦合电感的连接方式,改进耦合电感倍压单元可进一步提高储能电容的电压。对比其他文献提出的变换器,在器件数量相同或接近的前提下,在中低占空比范围内所提变换器电压增益表现更高。输入电流低纹波有助于延长光伏组件和变换器的工作寿命。开关器件的电压尖峰有效被钳位电路缓解,改善了开关管的工作环境和变换器的电磁环境。首先对所提变换器的工作原理和稳态进行全面分析。然后与近年来其他的变换器进行综合比较,说明所提变换器的特点和优势。最后,在实验室设计一台200 W的样机,实测波形有效验证了所提变换器理论分析的准确性。

Abstract

A high gain DC-DC converter with an enhanced coupled inductor voltage multiplier cell is presented. This converter is particularly suitable for elevating the relatively low voltage of a photovoltaic panel to the voltage level necessary for a high voltage DC bus. The proposed converter comprises a Sepic network in the front stage and an improved coupled inductor voltage multiplier cell in the back stage. It exhibits several notable advantages, such as high gain, low ripple, low switching voltage stress, light weight and high efficiency. By modifying the connection between the boost unit and the coupled inductor, the voltage of the energy storage capacitor can be further augmented using improved coupled inductor voltage multiplier cell. In comparison with converters described in other literature, the proposed converter achieves higher voltage gain at low and medium duty cycles while employing the same or a similar number of components. The low input current ripple is beneficial for prolonging the operational lifespan of both the PV panel and the converter. The clamp circuit effectively suppresses the voltage spikes across the switchirg device, thereby enhancing the operating conditions of the switching device and improving the electromagnetic environment of the converter. Firstly, a comprehensive analysis of the working principle and steady-state of the proposed converter was conducted. Then a comprehensive comparison was made with other recent converters to illustrate the unique characteristics and advantages of the proposed converter. Finally, a 200 W prototype was designed in the laboratory, and the measured waveforms successfully validated the accuracy of the theoretical analysis of the proposed converter.

导出引用

丁新平, 张鹏程, 张春林, 严智强, 戴万宜. 改进耦合电感倍压单元的高增益DC-DC变换器[J]. 太阳能学报. 2026, 47(3): 594-603 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1896

Ding Xinping, Zhang Pengcheng, Zhang Chunlin, Yan Zhiqiang, Dai Wanyi. HIGH GAIN DC-DC CONVERTER WITH IMPROVED COUPLED INDUCTOR VOLTAGE MULTIPLIER CELL[J]. Acta Energiae Solaris Sinica. 2026, 47(3): 594-603 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1896

中图分类号： TM46

参考文献

[1] 陆灏, 武保东. 多种阻抗网络升压变换器拓扑结构优化研究[J]. 安徽理工大学学报(自然科学版), 2019, 39(4): 77-86.
LU H, WU B D.Research on topology optimization of multiple impedance network boost converters[J]. Journal of Anhui University of Science and Technology(natural science), 2019, 39(4): 77-86.
[2] TARZAMNI H, GOHARI H S, SABAHI M, et al.Nonisolated high step-up DC-DC converters: comparative review and metrics applicability[J]. IEEE transactions on power electronics, 2024, 39(1): 582-625.
[3] GUAN Y S, CECATI C, ALONSO J M, et al.Review of high-frequency high-voltage-conversion-ratio DC-DC converters[J]. IEEE journal of emerging and selected topics in industrial electronics, 2021, 2(4): 374-389.
[4] 张涛, 侯鹏鹏, 王尧彬, 等. 一种新型准Z源高增益DC-DC升压变换器[J]. 太阳能学报, 2024, 45(7): 558-566.
ZHANG T, HOU P P, WANG Y B, et al.Novel high gain DC-DC boost converter with quasi-Z-source network[J]. Acta energiae solaris sinica, 2024, 45(7): 558-566.
[5] JIN T, YAN X, LI H B, et al.A new three-winding coupled inductor high step-up DC-DC converter integrating with switched-capacitor technique[J]. IEEE transactions on power electronics, 2023, 38(11): 14236-14248.
[6] 王凤莲. 软开关高增益准Z源DC-DC变换器研究及其控制[D]. 青岛:青岛理工大学, 2022.
WANG F L.Research and control of soft-switched high step-up quasi-Z-source DC-DC converter[D]. Qingdao: Qingdao University of Technology, 2022.
[7] 皇金锋, 谢锋, 韩梦祺. 耦合电感二次型高增益Boost变换器[J]. 电源学报, 2021, 19(2): 15-21.
HUANG J F, XIE F, HAN M Q.Coupled-inductor quadratic high step-up Boost converter[J]. Journal of power supply, 2021, 19(2): 15-21.
[8] 李海滨, 颜胥, 翁雨森, 等. 软开关高增益准YZ源DC-DC变换器[J]. 中国电机工程学报, 2024, 44(11): 4435-4445.
LI H B, YAN X, WENG Y S, et all. Soft-switched high voltage gain quasi-YZ source DC-DC converter[J]. Proceedings of the CSEE, 2024, 44(11): 4435-4445.
[9] 丁杰, 高双, 赵世伟, 等. 基于拓扑组合的交错并联耦合电感高增益DC-DC变换器[J]. 中国电机工程学报, 2021, 41(5): 1860-1870.
DING J, GAO S, ZHAO S W, et all. A high step-up DC-DC converter with interleaved and coupled inductor based on topology combination[J]. Proceedings of the CSEE, 2021, 41(5): 1860-1870.
[10] 曹益畅. 一种基于Y源与倍压单元的超高增益非隔离DC-DC变换器的分析与控制[D]. 青岛: 青岛理工大学, 2022.
CAO Y C.Analysis and control of an ultra-high gain non-isolated DC-DC converter based on Y-source and voltage doubling unit[D]. Qingdao: Qingdao University of Technology, 2022.
[11] 薛鹏飞, 张民, 赵振伟, 等. 新型高升压耦合电感DC-DC变换器[J]. 太阳能学报, 2023, 44(8): 215-223.
XUE P F, ZHANG M, ZHAO Z W, et al.Novel DC-DC converter with high boost coupling inductor[J]. Acta energiae solaris sinica, 2023, 43(8): 215-223.
[12] 袁成功, 张民, 薛鹏飞, 等. 新型耦合电感高增益DC-DC变换器[J]. 太阳能学报, 2023, 44(4): 448-455.
YUAN C G, ZHANG M, XUE P F, et al.Novel coupled inductor high-gain DC-DC converter[J]. Acta energiae solaris sinica, 2023, 44(4): 448-455.
[13] HASANPOUR S, FOROUZESH M, SIWAKOTI Y P, et al.A new high-gain, high-efficiency SEPIC-based DC-DC converter for renewable energy applications[J]. IEEE Journal of emerging and selected topics in power electronics, 2021, 2(4): 567-578.
[14] HASANPOUR S, SIWAKOTI Y P, BLAABJERG F.Analysis of a new soft-switched step-up trans-inverse DC/DC converter based on three-winding coupled-inductor[J]. IEEE transactions on power electronics, 2022, 37(2): 2203-2215.
[15] HU X F, WANG J Z, LI L P, et al.A three-winding coupled-inductor DC-DC converter topology with high voltage gain and reduced switch stress[J]. IEEE transactions on power electronics, 2018, 33(2): 1453-1462.
[16] HASANPOUR S, FOROUZESH M, SIWAKOTI Y P, et al.A novel full soft-switching high-gain DC-DC converter based on three-winding coupled-inductor[J]. IEEE transactions on power electronics, 2021, 36(11): 12656-12669.
[17] 周明珠. 一种零电压开关和低输入电流纹波高升压DC-DC变换器的研究及其控制[D]. 青岛: 青岛理工大学, 2022.
ZHOU M Z.Research and control of a high step-up DC-DC converter with zero voltage switching and low input current ripple[D]. Qingdao: Qingdao University of Technology, 2022.
[18] AZIZKANDI M E, SEDAGHATI F, SHAYEGHI H, et al.A high voltage gain DC-DC converter based on three winding coupled inductor and voltage multiplier cell[J]. IEEE transactions on power electronics, 2020, 35(5): 4558-4567.
[19] HASANPOUR S, SIWAKOTI Y P, BLAABJERG F.A new high efficiency high step-up DC/DC converter for renewable energy applications[J]. IEEE transactions on industrial electronics, 2023, 70(2): 1489-1500.
[20] 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(07): 389-397.
DING X P, YU Y H, YAN Z Q, et al.Quasi-Z-source converter with integrated three-winding coupled inductor and voltage multiplier cell[J]. Acta energiae solaris sinica, 2024, 45(7): 389-397.
[21] 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.
WANG F L, ZHOU M Z, CAO Y C, et al.Steady study on quasi-Z-source soft-switching converter with integrated doubled circuit[J]. Acta energiae solaris sinica, 2023, 44(5): 139-145.
[22] SIWAKOTI Y P, BLAABJERG F, CHIANG L P.High step-up trans-inverse (Tx^-1) DC-DC converter for the distributed generation system[J]. IEEE transactions on industrial electronics, 2016, 63(7): 4278-4291.
[23] MOSTAAN A, YUAN J, SIWAKOTI Y P, et al.A trans-inverse coupled-inductor semi-SEPIC DC/DC converter with full control range[J]. IEEE transactions on power electronics, 2019, 34(11): 10398-10402.
[24] 丁新平, 曹益畅, 赵振伟, 等. 输入电流低纹波的超高增益非隔离DC-DC变换器[J]. 中国电机工程学报, 2023, 43(6): 2359-2370.
DING X P, CAO Y C, ZHAO Z W, et all. Non-isolated ultra-high voltage gain DC-DC converter with low input current ripple[J]. Proceedings of the CSEE, 2023, 43(6): 2359-2370.
[25] 田国胜, 侯丽慧, 阚永琪, 等. 集成有源开关电感和Y源倍压单元的高增益DC-DC变换器[J]. 太阳能学报, 2024, 45(8): 200-209.
TIAN G S, HOU L H, KAN Y Q, et al.High gain DC-DC converter integrating active switched-inductor and Y-source voltage multiplier unit[J]. Acta energiae solaris sinica, 2024, 45(8): 200-209.
[26] HASANPOUR S, NOURI T, BLAABJERG F, et al.High step-up SEPIC-based trans-inverse DC-DC converter with quasi-resonance operation for renewable energy applications[J]. IEEE transactions on industrial electronics, 2023, 70(1): 485-497.
[27] HASANPOUR S, SIWAKOTI Y P, BLAABJERG F.A new soft-switched high step-up trans-inverse DC/DC converter based on built-in transformer[J]. IEEE open journal of power electronics, 2023, 4: 381-394.
[28] HASANPOUR S.New structure of single-switch ultra-high-gain DC/DC converter for renewable energy applications[J]. IEEE transactions on power electronics, 2022, 37(10): 12715-12728.