A New DC Fault Blocking Capability Technique for Modular Multilevel Converters

被引：0
|
作者：
Aghabali, Iman [1 ]
Narimani, Mehdi [1 ]
机构：
[1] McMaster Univ, Dept Elect & Comp Engn, 1280 Main St West, Hamilton, ON L8S 4K1, Canada
来源：
2019 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2019年
关键词：
Modular Multilevel Converter; Fault; DC fault;
D O I：
10.1109/ecce.2019.8913301
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 new structure to block DC-link short circuit fault current in modular multilevel converters is proposed. The proposed structure is based on using an extended 3-level Neutral point clamp converter in the output terminal of the MMC, which makes the modular multilevel convert able to block the current path in the faulty condition and protect the semiconductor switches in the event of fault. Moreover, the proposed structure is able to increase the number of voltage levels in the output while reducing the number of power switches and floating capacitors. The proposed technique is simulated in MATLAB simulink and the effectiveness of the proposed structure is verified.
引用
收藏
页码：3643 / 3648
页数：6
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