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一种具有增强型脉宽调制策略的三相混合多电平逆变器

A Three-Phase Hybrid Multilevel Inverter With Enhanced Pulse-Width Modulation Strategy

语言:

中文摘要

本文提出了一种采用增强型脉宽调制(PWM)策略的三相混合多电平逆变器(MLI)。该拓扑通过半桥与全桥串联实现电平生成,并结合T型逆变器实现极性生成。电平生成电路工作在高频,而极性生成电路工作在基频,有效提升了转换效率与输出质量。

English Abstract

This article presents a three-phase hybrid multilevel inverter (MLI) with enhanced pulsewidth modulation (PWM) strategy. The proposed hybrid MLI is developed based on the series connection of half-bridge and full-bridge for its level generation together with the T-type inverter for its polarity generation. The level and polarity generation circuits operate at high and fundamental frequencies respe...
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SunView 深度解读

该研究提出的混合多电平拓扑与增强型PWM策略,对阳光电源的组串式及集中式光伏逆变器具有重要的参考价值。通过将高频电平生成与基频极性切换解耦,该方案有望进一步降低开关损耗并提升逆变效率,尤其适用于大功率光伏并网场景。建议研发团队评估该拓扑在提升功率密度方面的潜力,并探索其在阳光电源新一代高压组串式逆变器中的应用可行性,以优化系统成本并提升电能质量。