| |
Optimized Pulse Width Modulation for Transformerless Active-NPC Inverters
| [View]
[Download]
|
| Author(s) |
NIKOS ACHILLADELIS, FREDE BLAABJERG |
| Abstract |
The transformerless DC/AC inverter topologies are employed in Photovoltaic systems in order toimprove 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 amongtheir power semiconductors. In this paper, a new modulation technique is proposed for optimallycontrolling the power switches employed in transformerless Active-NPC inverters. The design resultsdemonstrate that compared to the existing PWM strategies, using the proposed method results in lowertotal power losses and significantly better distribution of the power losses among the semiconductorsof the Active-NPC inverter. |
| Download |
| Filename: | 0084-epe2014-full-12441201.pdf |
| Filesize: | 362.5 KB |
|
| Type |
Members Only |
| Date |
Last modified 2015-06-08 by System |
| |
 |