Combined Voltage Balancing Techniques of the DC Link in Five-Level Medium Voltage NPC Back-to-Back Converters for Offshore Renewable Generation

被引：0
|
作者：
Mademlis, Georgios [1 ]
Liu, Yujing [1 ]
Saadat, Nima [1 ]
机构：
[1] Chalmers Univ Technol, Horsalsvagen 11, SE-41296 Gothenburg, Sweden
来源：
2017 19TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE'17 ECCE EUROPE) | 2017年
关键词：
Multilevel converters; High voltage power converters; Variable speed drive; Vector control; Converter control; DRIVES; SVM;
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：
The voltage balancing of the dc-link capacitors in an electric drive system with five-level neutral-pointclamped converters is investigated in this paper. A properly modified space-vector-modulation technique is utilized in combination with a multilevel dc/dc converter for controlling the capacitor voltages. An advanced algorithm has been developed for reducing the losses of the electric drive system and for ensuring that the capacitor voltages are balanced in every operating condition. The developed electric drive system can be used in offshore power plants for driving medium voltage generators. Selective simulation results are presented to validate the theoretical considerations.
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页数：10
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