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嵌套式多电平拓扑

Nested Multilevel Topologies

语言:

中文摘要

本文提出了一种基于嵌套排列概念的多电平拓扑结构,即嵌套式多电平变换器。该结构通过将桥臂中心点连接至同一点,并使外部桥臂包围内部桥臂来实现。与等效的NPC拓扑相比,嵌套配置在减少二极管数量等方面具有显著优势。

English Abstract

This paper proposes multilevel topologies based on the concept of nested arrangement. Such topologies are called nested multilevel converters, since the central point of the legs are connected at the same point, with the external legs involving the internal ones. Nested configurations present advantages as compared to the equivalent NPC topologies in terms of reduced number of diodes and consequen...
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SunView 深度解读

嵌套式多电平拓扑通过优化器件数量和结构布局,为阳光电源的高功率密度逆变器设计提供了技术参考。该技术方案可应用于阳光电源的集中式光伏逆变器及大型储能变流器(如PowerTitan系列),有助于进一步降低系统损耗、提升转换效率并减小设备体积。建议研发团队评估该拓扑在处理高压大电流场景下的热管理表现及控制复杂性,探索其在下一代高压组串式逆变器或大功率PCS中的应用潜力,以进一步增强产品在复杂电网环境下的竞争力。