Generalized PWM Approach for DC Capacitors Voltage Balancing in Diode-Clamped Multilevel Converters

被引：0

作者：

Grigoletto, Felipe Bovolini ^{[1
]}

Pinheiro, Humberto ^{[1
]}

机构：

[1] Univ Fed Santa Maria, BR-97105900 Santa Maria, RS, Brazil

来源：

EPE: 2009 13TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS, VOLS 1-9 | 2009年

关键词：

Multilevel converters; Pulsewidth modulation; Diode clamped converters; Capacitor voltage balance; NEUTRAL-POINT; MODULATION; INVERTERS; VECTOR;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

This paper develops a generalized Pulse Width Modulation approach to eliminate both the low frequency oscillations and imbalances in the dc-link capacitor voltages, which are the main drawbacks of diode clamped converters. The algorithm has been developed within the Carrier-Based PWM framework to facilitate its implementation in diode clamped converters with four or more levels. In addition, a generalized control strategy for the dc voltages control is proposed and its stability is demonstrated. The good performance of the proposed modulation technique is demonstrated from simulation results of a four level diode clamped inverter.

引用

页码：5277 / 5288

页数：12

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