Title :
Experimental investigations on the grid-connected AC/DC converter based on three-phase SiC MOSFET module
Author :
Szymon Pisecki;Jacek Rąbkowski
Author_Institution :
Institute of Control and Industrial Electronics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland
Abstract :
The paper presents a high-efficiency grid-connected 10 kVA AC/DC converter and its experimental verification during various operation modes. The converter was designed to operate with a natural convection cooling, which is possible due to performance of a three-phase SiC MOSFET module (1200V/50A) switching at 16 kHz. Moreover, a LCL filter is built with the inductors also optimized regarding low power losses. The AC/DC converter was investigated in active rectifier and grid-inverter mode with special focus on efficiency measurements. Typically, total losses are slightly above 1% of the nominal power but in specific operation areas, such as an active rectifier mode, efficiency higher than 99% was observed.
Keywords :
"Silicon carbide","Switching frequency","MOSFET","Inductors","Multichip modules","Thermal resistance"
Conference_Titel :
Power Electronics and Applications (EPE´15 ECCE-Europe), 2015 17th European Conference on
DOI :
10.1109/EPE.2015.7311723
