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对称与非对称两电平六相电压源逆变器直流侧电压与电流纹波的综合分析与评估

Comprehensive Analysis and Evaluation of DC-Link Voltage and Current Ripples in Symmetric and Asymmetric Two-Level Six-Phase Voltage Source Inverters

语言:

中文摘要

多相驱动系统(尤其是六相系统)在工业应用中日益普及,这对多相逆变器设计提出了更高要求。针对电压源逆变器(VSI)驱动,直流侧电压和电流应力分析对于输入电容选型至关重要。本文深入研究了对称与非对称两电平六相电压源逆变器中直流侧电容的电压和电流应力,为优化逆变器设计提供了理论依据。

English Abstract

Multiphase drives (MPD) in general and six-phase in particular have been gaining popularity in many industries, which calls for a proper multiphase inverter (MPI) design. For voltage source inverter (VSI)-fed drives, the knowledge of voltage and current stresses on the dc-link are imperative for input capacitor sizing. To this end, the voltage and current stresses on the dc-link capacitor in two-l...
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SunView 深度解读

该研究关注多相逆变器的直流侧纹波特性与电容选型,虽然阳光电源目前主流产品(如组串式逆变器、PowerTitan储能变流器)多采用三相拓扑,但随着大功率风电变流器及未来高功率密度多相驱动技术的发展,直流侧电容的精细化设计(降低纹波、延长寿命)对于提升产品可靠性至关重要。建议研发团队参考文中的纹波分析方法,优化现有高功率密度逆变器的直流侧母线设计,以减少电容体积并提升系统整体寿命。