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具有降低源电流和有源元件电流的对称宽输入电压范围升压Z源DC-DC变换器

Symmetric Wide-Input-Voltage Range Boost Z-Source DC–DC Converter With Reduced Current of Source and Active Components

语言:

中文摘要

本文提出了一种具有高升压能力的新型增强型DC-DC变换器。该拓扑实现了连续且纹波极小的源电流,并有效限制了启动浪涌电流。与传统的扩展开关升压变换器相比,该电路在元件数量相当的情况下,能够产生更高的输出电压,适用于对升压比和效率有严苛要求的光伏及储能应用场景。

English Abstract

This study proposes a new enhanced boost dc/dc converter with high-voltage boost ability. The proposed converter takes the advantage of a continuous source current with negligible ripple, and the start-up inrush current is limited as well. Compared with the traditional extended switched-boost dc–dc converter, this converter generates higher output voltage while the numbers of components in the Z-s...
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SunView 深度解读

该拓扑的高升压比和低输入电流纹波特性,对阳光电源的组串式光伏逆变器(如SG系列)及储能PCS(如ST系列、PowerTitan)具有重要参考价值。在光伏应用中,该技术可优化宽电压范围下的MPPT效率,减少对光伏组件的电流应力;在储能应用中,其低浪涌电流特性有助于提升电池系统的安全性与寿命。建议研发团队评估该拓扑在提升功率密度及降低开关损耗方面的潜力,特别是在应对高压直流母线需求时的应用可行性。