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具有更高可靠性和性能特征的增强型混合模块化多电平变换器

Enhanced Hybrid Modular Multilevel Converter With Improved Reliability and Performance Characteristics

语言:

中文摘要

本文提出了一种结合半桥子模块(HBSM)和全桥子模块(FBSM)的增强型混合模块化多电平变换器(MMC)。通过在每个桥臂中配置FBSM,显著降低了HBSM的开关频率,从而有效减少了变换器的功率损耗,并提升了系统的整体可靠性与性能。

English Abstract

This paper proposes an enhanced hybrid modular multilevel converter (MMC), which utilizes a combination of half-bridge submodules (HBSM) and at least one full-bridge submodule (FBSM). In the proposed structure, FBSMs work with half of the HBSMs nominal voltage in each arm. Due to the presence of FBSMs, HBSMs switching frequency drops significantly, which reduces the converter power loss compared t...
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SunView 深度解读

该拓扑研究对阳光电源的集中式光伏逆变器及大型储能系统(如PowerTitan系列)具有重要参考价值。混合MMC结构通过引入全桥子模块,不仅能提升系统在复杂电网环境下的故障穿越能力(如直流侧故障清除),还能通过降低开关频率优化散热设计,提升功率密度。建议研发团队关注该拓扑在超高压直流输电及大容量储能变流器中的应用潜力,通过优化调制策略进一步降低损耗,从而提升阳光电源在大型地面电站及电网侧储能市场的核心竞争力。