An interleaved non‐isolated high gain soft switching DC–DC converter with small input current ripple
An interleaved non‐isolated high gain soft switching DC–DC converter with small input current ripple
复制标题
一种具有小输入电流纹波的交错非隔离高增益软开关 DC-DC 转换器
DOI：
10.1049/pel2.12425
复制
发表时间：
2023
影响因子：
2
通讯作者：
Shahirinia, Amir
中科院分区：
文献类型：
--
作者：
Abbasian, Sohrab;Farsijani, Mohammad;Tavakoli Bina, Mohammad;Abrishamifar, Adib;Hosseini, Arya;Shahirinia, Amir
本文提出了一种用于可再生能源应用的非隔离高阶跃交错DC-DC拓扑结构。两个三绕组耦合电感器和两个电压倍增器用于显著提高电压增益。这种新拓扑结构的一个有趣的方面是，实现高电压增益不需要高占空比；这是通过调整耦合电感的匝数比来实现的。此外，由于交错结构，所提出的交错变换器不仅具有较小的电流应力，而且与同类最佳升压拓扑相比，其电压增益增加了16%。附加元件的设计目的是为了软开关和增益的增加，这对所提出的变换器的成本、重量和尺寸几乎没有影响。有趣的是，开关器件和无源元件上的电压应力都远小于输出电压。此外，耦合电感的漏感能量通过采用无源箝位电路来回收，以最小化半导体上的应力；因此，提高了效率。对该变换器进行了稳态分析，并建立了400w的实验装置；分析结果验证了所提升压变换器的实用性。
This article suggests a non‐isolated high step‐up interleaved DC–DC topology for renewable energy applications. Two three‐winding coupled‐inductors along with two voltage multiplier cells are used to enhance the voltage gain significantly. One interesting aspect of this new topology is that high duty cycles are not required to achieve high voltage gains; this is done by adjusting the turn ratio of the coupled inductors. Moreover, the presented interleaved converter enjoys not only having less current stress due to the interleaving structure, but also showing 16% increase in voltage gain compared to the best similar boost topologies. Additional elements are designed for the purpose of soft switching and gain increase, which have little effect on the cost, weight and size of the proposed converter. Interestingly, the voltage stresses both on the switching devices and passive elements are much less than the output voltage. Furthermore, the coupled inductor's leakage inductance energy is recovered by employing a passive clamp circuit to minimize stresses across the semiconductors; therefore, efficiency is improved. The suggested converter is analyzed in the steady state, and a 400 W experimental setup was implemented; the outcomes verify the practicality of the proposed boost converter in accordance with the analysis.