| |
Three-Level NPC-based Bidirectional PWM Converter Operation for High Availability/Power Quality Bipolar Dc Distribution Networks
| [View]
[Download]
|
| Author(s) |
Joabel MOIA, Marcelo HELDWEIN |
| Abstract |
This work proposes an operation strategy for a four-legs neutral point clamped converter (NPC) to beused in future bipolar dc distribution networks. The operation of the fourth leg with a three-level modulationis proposed to reduce the required inductance and switching losses. In addition, a proper controlscheme based on a state space averaged model for the fourth NPC leg is introduced. This provides ripplefree and balanced NPC partial dc-link voltages. The system is able to provide increased redundancy andimproved dc voltage quality. Simulation and experimental results are presented to illustrate the operationof the 4-legs NPC with the proposed control and modulation scheme |
| Download |
| Filename: | 0647-epe2013-full-22450167.pdf |
| Filesize: | 3.002 MB |
|
| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
| |
 |