3-Level NPC Topology in Wind Inverter

Inhalt:
It is a new trend to use 3-Level NPC solution to replace traditional 2-Level solution in some power electronics applications. Efficiency, cost, higher switching frequency and small footprints are all highly relevant value propositions for those applications such as APF, Solar etc. Selecting 3-Level topology can decrease the size of the filter because of lower switching voltage and feasible higher switch frequency. Losses in 3-Level IGBT module will be lower than 2-Level module can also help to increase the efficiency remarkably. P3/P3L(r) is an excellent package for high power IGBT especially for 3-Level NPC topology. In this paper several P3L based 3-Level IGBT power module for wind inverter system is presented. The cons and pros of 3-Level in wind inverter will be discussed.