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一种新型无耦合电感非隔离DC-DC变换器的设计与可靠性分析

Design and Reliability Analysis of a New Non-Isolated DC–DC Converter Without Coupled Inductors

语言:

中文摘要

本文提出了一种新型无耦合电感非隔离DC-DC变换器,旨在低占空比下实现高电压增益,同时降低开关管电压应力并提升可靠性。文章通过连续导通模式(CCM)和断续导通模式(DCM)下的稳态数学方程对该变换器的工作原理进行了深入分析。

English Abstract

This article proposes a new non-isolated dc–dc converter without coupled inductors to attain a higher voltage gain at a low duty ratio, less voltage stress across the switch, and improved reliability. The operation of the proposed converter is examined through the steady-state mathematical equations in continuous conduction mode and discontinuous conduction mode. The boundary condition mode of the...
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SunView 深度解读

该拓扑通过优化无耦合电感结构实现了高增益与低电压应力,这对阳光电源的组串式光伏逆变器(如SG系列)及户用储能系统(如SH系列)具有重要参考价值。在光伏侧,高增益特性可提升MPPT电压范围,增强对弱光环境的适应性;在储能侧,降低开关管电压应力有助于选用更具性价比的功率器件,提升系统整体效率与可靠性。建议研发团队评估该拓扑在提升功率密度方面的潜力,特别是在追求轻量化、高效率的户用及工商业产品线中的应用可行性。