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一种用于高压大功率中间总线变换器的改进型非对称半桥拓扑

A Modified Asymmetric Half-Bridge Topology for High-Voltage High-Power Intermediate Bus Converters

语言:

中文摘要

本文提出了一种适用于高压大功率应用场景的变换器拓扑。该拓扑在原边和副边各使用两个开关管。针对现有方案在高功率水平下因变压器直流偏磁导致磁芯体积过大的问题,本文提出了一种优化变压器设计的方法,有效提升了功率密度。

English Abstract

The article presents a converter topology designed for high-voltage, and high-power applications. The proposed topology uses two switches each in the primary and secondary. Existing solutions suitable for these applications face limitations in terms of the transformer dc flux at high power levels, which leads to larger core size. This article proposes a methodology to design the transformer at hig...
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SunView 深度解读

该拓扑对阳光电源的储能系统(如PowerTitan、PowerStack)及大功率组串式逆变器具有重要参考价值。储能变流器(PCS)的核心在于DC-DC级的高效功率变换,该改进型非对称半桥拓扑通过优化磁性元件设计,能够有效减小磁芯体积,从而提升整机功率密度并降低成本。建议研发团队评估该拓扑在兆瓦级储能系统中的应用潜力,特别是针对高压直流母线侧的效率优化,以进一步增强阳光电源在大型储能电站及工商业储能市场的竞争力。