一种高增益软开关准Z源DC-DC变换器

张涛; 白文龙; 张丽; 韩庆林; 李云飞; 张亚飞

doi:doi:10.19912/j.0254-0096.tynxb.2024-1700

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一种高增益软开关准Z源DC-DC变换器

更新时间：2026-03-06

- 一种高增益软开关准Z源DC-DC变换器
- Vol. 47, Issue 2, Pages: 8-17(2026)
- 作者机构：
- 作者简介：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1700
  CLC： TM46
- Online First：05 March 2026，
  
  Published：05 March 2026
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张涛, 白文龙, 张丽, et al. 一种高增益软开关准Z源DC-DC变换器[J]. 2026, 47(2): 8-17.
DOI：

张涛, 白文龙, 张丽, et al. 一种高增益软开关准Z源DC-DC变换器[J]. 2026, 47(2): 8-17. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1700.

摘要

针对传统准Z源DC-DC变换器存在电压增益低和器件电压应力高的问题

提出一种高增益软开关准Z源DC-DC变换器（HGSS-QZS）。通过三绕组耦合电感匝比和开关管占空比共同调节

可提高升压能力和增益调节的自由度;并利用钳位电路吸收耦合电感的漏感能量

降低漏感引起的电压尖峰。首先详细分析HGSS-QZS变换器的工作原理

推导出电压增益、器件电压电流应力和效率损耗

其次进行参数设计并与现有变换器对比。表明HGSS-QZS变换器具有电压增益高、器件电压应力低、软开关和效率高的优点。最后搭建200 W实验样机

结合仿真与实验对比验证了HGSS-QZS变换器的有效性和可行性。

Abstract

To address the issues of low voltage gain and high voltage stress existing in traditional quasi-Z-source DC-DC converters

a high-gain soft-switching quasi-Z-source DC-DC converter （HGSS-QZS） is proposed. By adjusting both the turns ratio of the three-winding coupled inductor and the duty cycle of the switch

the boost capability and the flexibility of gain adjustment are improved. A clamping circuit is employed to absorb the leakage energy of the coupled inductor

reducing the voltage spikes caused by leakage inductance. Firstly

the operating principle of the HGSS-QZS converter is analyzed in detail

and voltage gain

device voltage and current stress

and efficiency losses are derived. Next

parameter design is carried out and compared with existing converters

demonstrating that the HGSS-QZS converter offers high voltage gain

low voltage stress on components

soft-switching capability

and high efficiency. Finally

a 200 W experimental prototype was built

and the validity and feasibility of the HGSS-QZS converter were verified through simulation and experimental comparison.

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references

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