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基于开关升压阻抗源网络与梯形开关电容的高升压DC-DC变换器

High Step-Up DC–DC Converter Based on Switched Boost Impedance Source Network and Ladder Switched Capacitor

语言:

中文摘要

本文提出了一种基于开关升压阻抗源网络(SB-ZSN)和梯形开关电容的新型高升压DC-DC变换器,旨在提升可再生能源系统的电压增益。该拓扑具备输入电流连续、无浪涌电流以及输入输出共地等优势,适用于光伏发电等高增益应用场景。

English Abstract

This article proposes a new step-up dc–dc converter based on a switched boost impedance source network (SB-ZSN) with high voltage gain for application in renewable energy sources. In addition to maintaining the advantages of recent impedance source converters, such as continuous input current, the absence of inrush current, and a common ground between the input and output, the proposed converter i...
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SunView 深度解读

该拓扑结构通过阻抗源网络与开关电容技术的结合,有效解决了光伏组件低压输入与逆变器高压直流母线之间的升压需求。对于阳光电源的组串式逆变器(String Inverters)产品线,该技术有助于进一步优化DC-DC升压级电路的效率与功率密度,尤其在应对薄膜组件或低电压光伏阵列时,能显著降低开关管电压应力,提升系统整体转换效率。建议研发团队评估其在下一代高压组串式逆变器中的应用潜力,重点关注其在宽输入电压范围下的动态响应及电磁兼容性表现。