一种新的无源整流器四电平逆变器环节电位控制方案

APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285) Pub Date : 1999-03-14 DOI:10.1109/APEC.1999.749732

Rae-Young Kim, Yo-han Lee, D. Hyun

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引用次数: 4

摘要

近年来，多级逆变器越来越受到人们的关注，并在一些高压和高功率应用中得到了选择。特别是在大功率变速应用中，二极管箝位多电平逆变器得到了广泛的应用。然而，二极管箝位型逆变器存在链路电容电位波动的固有问题。本文提出了一种基于载波的空间矢量调制方法来有效抑制二极管箝位四电平逆变器直流链路电位波动。利用传统的基于载波的支持向量机方法对各链路电容的电流进行了分析，得到了运行极限。为了克服运算限制，提出了一种改进的基于载波的支持向量机方法。利用Matlab/Simulink进行了各种仿真，验证了所提出的基于载波的支持向量机方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A new link potential control scheme for four-level inverter with passive rectifier

Multi-level inverters have been attracting increasing attention in recent years and have been selected in several high voltage and high power applications. Especially, for high power variable speed applications, the diode clamped configuration multi-level inverter has been widely used. However, the diode clamped configuration inverter has the inherent problem that the potential of the link capacitor fluctuates. This paper describes a carrier-based SVM (space vector modulation) method to effectively suppress the DC link potential fluctuation for the diode clamped four-level inverter. The current to flow from/into each link capacitor is analyzed and the operation limit is obtained when a conventional carrier-based SVM method is used. To overcome the operation limit, a modified carrier-based SVM method is proposed. Various simulation results by means of Matlab/Simulink are presented to verify the proposed carrier-based SVM method.

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APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)

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