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一种新型隔离式多电平DC-DC功率变换器

Novel Isolated Multilevel DC–DC Power Converter

语言:

中文摘要

本文提出了一种新型隔离式多电平DC-DC功率变换器。该变换器由隔离功率变换级、串并联切换电路及输出L-C滤波器组成。隔离功率变换级包含半桥逆变器、三绕组变压器及两个全桥整流器。该拓扑通过多电平结构优化了功率传输效率与电压应力。

English Abstract

An isolated multilevel dc-dc power converter is proposed in this paper. The proposed isolated multilevel dc-dc power converter consists of an isolated power converter, a series/parallel switching circuit, and an output L-C filter. The isolated power converter is composed of a half-bridge inverter, a three-winding transformer, and two full-bridge rectifiers. The half-bridge inverter is switched in ...
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SunView 深度解读

该拓扑结构在提高功率密度和降低开关损耗方面具有显著优势,与阳光电源的PowerTitan系列储能变流器(PCS)及组串式光伏逆变器技术路线高度契合。多电平技术可有效降低器件电压应力,有助于提升高压储能系统及大型光伏电站的转换效率。建议研发团队关注该拓扑在宽电压范围输入下的动态性能,并评估其在兆瓦级储能系统中的应用潜力,以进一步优化系统体积与散热设计,提升产品竞争力。