Optimized Pulse Width Modulation for Transformerless Active-NPC Inverters

被引：0
|
作者：
Achilladelis, Nikolaos [1 ]
Koutroulis, Eftichios [1 ]
Blaabjerg, Frede [2 ]
机构：
[1] Tech Univ Crete, Sch Elect & Comp Engn, Khania, Greece
[2] Aalborg Univ, Dept Energy Technol, Aalborg, Denmark
来源：
2014 16TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE'14-ECCE EUROPE) | 2014年
关键词：
Active-Neutral Point Clamped; Pulse Width Modulation; Voltage Source Inverters; Optimization; Genetic Algorithms;
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 transformerless DC/AC inverter topologies are employed in Photovoltaic systems in order to improve the power conversion efficiency, power density and cost. The Active-Neutral Point Clamped (Active-NPC) transformerless inverters have the advantage of achieving better thermal balance among their power semiconductors. In this paper, a new modulation technique is proposed for optimally controlling the power switches employed in transformerless Active-NPC inverters. The design results demonstrate that compared to the existing PWM strategies, using the proposed method results in lower total power losses and significantly better distribution of the power losses among the semiconductors of the Active-NPC inverter.
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页数：10
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