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利用改进空间矢量调制策略降低三相准Z源逆变器开关损耗

Switching Loss Reduction in the Three-Phase Quasi-Z-Source Inverters Utilizing Modified Space Vector Modulation Strategies

语言:

中文摘要

准Z源逆变器(qZSI)因结构简单且输入电流连续,成为光伏逆变器领域的重要拓扑。本文针对现有调制方法存在的局限性,提出改进的空间矢量调制策略,旨在有效降低三相qZSI的开关损耗,提升系统整体转换效率。

English Abstract

Several single-stage topologies have been introduced since kicking off the three-phase Z-source inverter (ZSI), and among these topologies, the quasi-ZSI (qZSI) is the most common one due to its simple structure and continuous input current. Furthermore, different modulation strategies, utilizing multiple reference signals, have been developed as well. However, prior art modulation methods have so...
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SunView 深度解读

该研究关注的准Z源逆变器(qZSI)拓扑具备升降压一体化能力,对于阳光电源的组串式逆变器及户用光伏产品线具有重要的参考价值。通过优化空间矢量调制(SVPWM)策略降低开关损耗,可直接提升逆变器的最高效率和功率密度,从而降低散热成本并延长器件寿命。建议研发团队评估该调制策略在阳光电源现有高压组串式逆变器平台上的兼容性,特别是在应对复杂光伏阵列电压波动时的动态性能表现,以进一步巩固公司在光伏转换效率方面的行业领先地位。