Fault-tolerant hybrid four-leg multilevel converter

被引：0
|
作者：
Ceballos, Salvador
Pou, Josep
Robles, Eider
Zaragoza, Jordi
Ibanez, Pedro
Martin, Jose Luis
机构：
来源：
2007 EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS, VOLS 1-10 | 2007年
关键词：
multilevel converters; reliability; modulation strategy; wind energy;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper a modification of the Neutral-Point-Clamped (NPC) converter, in which a fourth leg has been added, is presented. The main aim of this additional leg is to increase the reliability of the converter and thereby allow it to continue operating when a breakdown in one of the IGBTs occurs. In addition, during normal fault-free operation, the fourth leg also guarantees a correct control of the neutral point voltage, removing completely the low frequency voltage oscillations. A simple and computationally efficient control scheme is proposed for this purpose.
引用
收藏
页码：1822 / 1830
页数：9
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