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非隔离式降冗余功率处理DC/DC变换器:高功率应用中宽电压比拓扑的系统性研究

Non-Isolated Reduced Redundant Power Processing DC/DC Converters: A Systematic Study of Topologies With Wide Voltage Ratio for High-Power Applications

语言:

中文摘要

本文对降冗余功率处理(R2P2)架构下的非隔离式DC/DC变换器进行了系统性分析。研究推导了所有可实际实现的非隔离R2P2拓扑,并通过详细案例阐述了分析过程。此外,文章还探讨了这些拓扑在宽电压比应用下的电压增益特性及效率表现。

English Abstract

In this paper, a systematic and analytical study of non-isolated topologies belonging to the family of reduced redundant power processing (R2P2) converters is presented. Based on this study, all the non-isolated R2P2 topologies that can be implemented in reality are derived. Detailed examples clarify all possible cases of this analysis. In addition to this, the voltage ratio and the efficiency for...
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SunView 深度解读

R2P2架构通过仅处理部分功率来提升变换效率,对于阳光电源的PowerTitan系列储能系统及组串式光伏逆变器具有重要参考价值。在高功率密度和宽电压范围(如电池组电压波动大或光伏组串电压宽范围)应用场景下,采用R2P2技术可显著降低功率器件的损耗,提升系统整体效率。建议研发团队关注该拓扑在储能变流器(PCS)DC/DC侧的应用潜力,特别是在追求极致效率和小型化的户用及工商业储能产品中,探索其降低散热成本与提升功率密度的可行性。