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一种具有连续输入和输出电流的单开关二次型Buck-Boost变换器

A Single-Switch Quadratic Buck–Boost Converter With Continuous Input Port Current and Continuous Output Port Current

语言:

中文摘要

本文提出了一种新型单开关二次型Buck-Boost变换器。与传统Buck-Boost变换器相比,该拓扑在相同占空比下能实现更宽的电压增益范围,且具备输入和输出电流连续的优势,有效降低了电流纹波,提升了系统效率与电能质量。

English Abstract

A single-switch quadratic buck-boost converter with continuous input port current and continuous output port current is proposed in this paper. Compared with the traditional buck-boost converter, the proposed converter can obtain a wider range of the voltage conversion ratio with the same duty cycle. Moreover, the proposed converter can operate with continuous input port current and continuous out...
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SunView 深度解读

该拓扑结构通过单开关实现二次型电压增益,且具备输入输出电流连续的特性,非常契合阳光电源户用光伏逆变器及小型储能PCS(如ST系列)对高功率密度和低纹波的需求。在户用光伏系统中,该电路可有效提升MPPT跟踪范围,减少对前端滤波电感的需求,从而降低系统体积与成本。建议研发团队评估其在低功率等级DC-DC变换级中的应用潜力,特别是在追求高效率与高可靠性的户用储能一体机场景中,该拓扑可作为提升产品竞争力的技术储备。